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Cai CY, Dong H, Sun CP. Multiparticle quantum Szilard engine with optimal cycles assisted by a Maxwell's demon. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 85:031114. [PMID: 22587045 DOI: 10.1103/physreve.85.031114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Indexed: 05/31/2023]
Abstract
We present a complete-quantum description of a multiparticle Szilard engine that consists of a working substance and a Maxwell's demon. The demon is modeled as a multilevel quantum system with specific quantum control, and the working substance consists of identical particles obeying Bose-Einstein or Fermi-Dirac statistics. In this description, a reversible scheme to erase the demon's memory by a lower-temperature heat bath is used. We demonstrate that (1) the quantum control of the demon can be optimized for a single-particle Szilard engine so that the efficiency of the demon-assisted thermodynamic cycle could reach the Carnot cycle's efficiency and (2) the low-temperature behavior of the working substance is very sensitive to the quantum statistics of the particles and the insertion position of the partition.
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Liu D, Dong H, Bishop ME, Zhang J, Wang H, Xie S, Wang S, Huang L, Eberl DD. Microbial reduction of structural iron in interstratified illite-smectite minerals by a sulfate-reducing bacterium. GEOBIOLOGY 2012; 10:150-162. [PMID: 22074236 DOI: 10.1111/j.1472-4669.2011.00307.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Clay minerals are ubiquitous in soils, sediments, and sedimentary rocks and could coexist with sulfate-reducing bacteria (SRB) in anoxic environments, however, the interactions of clay minerals and SRB are not well understood. The objective of this study was to understand the reduction rate and capacity of structural Fe(III) in dioctahedral clay minerals by a mesophilic SRB, Desulfovibrio vulgaris and the potential role in catalyzing smectite illitization. Bioreduction experiments were performed in batch systems, where four different clay minerals (nontronite NAu-2, mixed-layer illite-smectite RAr-1 and ISCz-1, and illite IMt-1) were exposed to D. vulgaris in a non-growth medium with and without anthraquinone-2,6-disulfonate (AQDS) and sulfate. Our results demonstrated that D. vulgaris was able to reduce structural Fe(III) in these clay minerals, and AQDS enhanced the reduction rate and extent. In the presence of AQDS, sulfate had little effect on Fe(III) bioreduction. In the absence of AQDS, sulfate increased the reduction rate and capacity, suggesting that sulfide produced during sulfate reduction reacted with the phyllosilicate Fe(III). The extent of bioreduction of structural Fe(III) in the clay minerals was positively correlated with the percentage of smectite and mineral surface area of these minerals. X-ray diffraction, and scanning and transmission electron microscopy results confirmed formation of illite after bioreduction. These data collectively showed that D. vulgaris could promote smectite illitization through reduction of structural Fe(III) in clay minerals.
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Liu P, Xu B, Shen W, Zhu H, Wu W, Fu Y, Chen H, Dong H, Zhu Y, Miao K, Xu W, Li J. Dysregulation of TNFα-induced necroptotic signaling in chronic lymphocytic leukemia: suppression of CYLD gene by LEF1. Leukemia 2011; 26:1293-300. [DOI: 10.1038/leu.2011.357] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tao X, Dong H, Zhang H, Xin H. Sex-based responses of plasma creatine kinase in broilers to thermoneutral constant and cyclic high temperatures. Br Poult Sci 2011; 52:800-6. [DOI: 10.1080/00071668.2011.628639] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Dong H, Deng M, Song M, Chen J, Wang Q. Kruppel-like factor 4 promotes differentiation of endothelial progenitor cells into endothelial cells by up-regulating endothelial nitric oxide synthase. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Yao L, Dong H, Zhu H, Nelson D, Liu C, Lambiase L, Li X. Identification of the IFITM3 gene as an inhibitor of hepatitis C viral translation in a stable STAT1 cell line. J Viral Hepat 2011; 18:e523-9. [PMID: 21914072 PMCID: PMC3736357 DOI: 10.1111/j.1365-2893.2011.01452.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
To investigate the functions of signal transducers and activators of transcription 1 (STAT1)-induced anti-hepatitis C viral (HCV) effects, a stable Huh7.5 cell line (Huh7.5-STAT1ER) was established that constitutively expresses a fusion protein (STAT1ER) of STAT1 and the mouse oestrogen receptor (ER), which forms STAT1ER homodimers after 4-hydroxytamoxifen (4-HT) treatment. This inducible and cytokine/receptor-independent STAT1 activation system allowed us to investigate the anti-HCV effects of STAT1ER activation after inducing IFN-stimulated gene (ISG) expression. The anti-HCV effects of dimerized STAT1ER fusion protein were determined by real-time PCR in a time-dependent fashion post-HCV (JFH-1) infection. HCV (JFH-1) RNA decreased 48% at 72 h after 4-HT treatment. To distinguish the inhibitory effects of STAT1ER activation on HCV RNA replication or HCV internal ribosomal entry site (IRES)-mediated translation, a dicistronic pRL-HL construct was used in the studies. Both cellular (Cap-dependent) and HCV IRES-mediated (Cap-independent) translation were decreased by 63% and 57% at 72 h post-STAT1ER activation in the STAT1ER cell line. In our previous studies, interferon-induced transmembrane protein 3 [(IFITM3) (1-8U)] was found to inhibit HCV RNA replication. Subsequently, elevated expression of the 1-8U gene was confirmed by Western blotting in the Huh7.5-STAT1ER cell line. To further investigate the 1-8U function with both in vivo and in vitro studies, the 1-8U gene was found to suppress cellular and HCV IRES-mediated translation.
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Fan YH, Dong H, Pan Q, Cao YJ, Li H, Wang HC. Notch signaling may negatively regulate neonatal rat cardiac fibroblast-myofibroblast transformation. Physiol Res 2011; 60:739-48. [PMID: 21812518 DOI: 10.33549/physiolres.932149] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cardiac fibroblast-myofibroblast transformation (CMT) is a critical event in the initiation of myocardial fibrosis. Notch signaling has been shown to regulate myofibroblast transformation from other kinds of cells. However, whether Notch signaling is also involved in CMT remains unclear. In the present study, expressions of Notch receptors in cardiac fibroblasts (CFs) were examined, effects of Notch signaling inhibitor N-[N-(3,5-difluorophenacetyl)-l-alanyl]-S-phenylglycine t-butyl ester (DAPT) and transforming growth factor-beta1 (TGF-beta1) on CMT were determined by increasing alpha-smooth muscle actin (alpha-SMA) expression and collagen synthesis, and Notch signaling was examined by analyzing expressions of Notch receptors. The results showed that: (1) Notch receptor 1, 2, 3 and 4 were all expressed in CFs; (2) DAPT promoted CMT in a time-dependent manner; (3) During the period of CMT induced by TGF-beta1, expressions of Notch receptor 1, 3 and 4 in CFs were down-regulated, whereas there was no change for Notch receptor 2. Moreover, the downtrends of Notch 1, 3 and 4 were corresponding to the trend growth of alpha-SMA expression and collagen synthesis. These results suggested that inhibiting of Notch signaling might promote CMT. The down-regulations of Notch receptor 1, 3 and 4 induced by TGF-beta1 may facilitate CMT. In conclusion, inhibition of Notch signaling might be a novel mechanism of CMT in myocardial fibrosis.
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Stanganelli I, Argenziano G, Sera F, Blum A, Ozdemir F, Karaarslan IK, Piccolo D, Peris K, Kirchesch H, Bono R, Pizzichetta MA, Gasparini S, Braun RP, Correia O, Thomas L, Zaballos P, Puig S, Malvehy J, Scalvenzi M, Rabinovitz H, Bergamo A, Pellacani G, Longo C, Pavlovic M, Rosendahl C, Hofmann-Wellenhof R, Cabo H, Marghoob AA, Langford D, Astorino S, Manganoni AM, Gourhant JY, Keir J, Grichnik JM, Fumo G, Dong H, Sortino Rachou AM, Ferrara G, Zalaudek I. Dermoscopy of scalp tumours: a multi-centre study conducted by the international dermoscopy society. J Eur Acad Dermatol Venereol 2011; 26:953-63. [PMID: 21790795 DOI: 10.1111/j.1468-3083.2011.04188.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Little is known about the dermoscopic features of scalp tumours. Objective To determine the dermoscopic features of scalp tumours. METHODS Retrospective analysis of dermoscopic images of histopathologically diagnosed scalp tumours from International Dermoscopy Society members. RESULTS A total of 323 tumours of the scalp from 315 patients (mean age: 52 years; range 3-88 years) were analysed. Scalp nevi were significantly associated with young age (<30 years) and exhibited a globular or network pattern with central or perifollicular hypopigmentation. Melanoma and non-melanoma skin cancer were associated with male gender, androgenetic alopecia, age >65 years and sun damage. Atypical network and regression were predictive for thin (≤1 mm) melanomas, whereas advanced melanomas (tumour thickness > 1 mm) revealed blue white veil, unspecific patterns and irregular black blotches or dots. CONCLUSIONS The data collected provide a new knowledge regarding the clinical and dermoscopy features of pigmented scalp tumours.
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Dong H, Tao W, Zhu L, Zhang Y, Li Y. CAC2634-disrupted mutant of Clostridium acetobutylicum can be electrotransformed in air. Lett Appl Microbiol 2011; 53:379-82. [PMID: 21711370 DOI: 10.1111/j.1472-765x.2011.03111.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
AIMS To simplify the electrotransformation process of Clostridium acetobutylicum, which currently needs to be performed in an anaerobic chamber, thus laborious and time-consuming. METHODS AND RESULTS The CAC2634 gene encoding PerR is a known peroxide regulon repressor in Cl. acetobutylicum. CAC2634 in a previously constructed Restriction-Modification system deficient Cl. acetobutylicum mutant SMB009 was disrupted using ClosTron method. The resulted mutant SMB012 can be electrotransformed in air with an efficiency of 1.2-3.1 × 10(3) transformants μg(-1) DNA. CONCLUSIONS We demonstrated that the disruption of CAC2634 in Cl. acetobutylicum enables its electrotransformation in air. SIGNIFICANCE AND IMPACT OF THE STUDY The electrotransformation process of Cl. acetobutylicum could be significantly simplified, especially when operating multiple electrotransformations.
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Dong H, Xu DZ, Cai CY, Sun CP. Quantum Maxwell's demon in thermodynamic cycles. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 83:061108. [PMID: 21797303 DOI: 10.1103/physreve.83.061108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Revised: 03/01/2011] [Indexed: 05/31/2023]
Abstract
We study the physical mechanism of Maxwell's demon (MD), which helps do extra work in thermodynamic cycles with the heat engine. This is exemplified with one molecule confined in an infinitely deep square potential with a movable solid wall. The MD is modeled as a two-level system (TLS) for measuring and controlling the motion of the molecule. The processes in the cycle are described in a quantum fashion. It is discovered that a MD with quantum coherence or one at a temperature lower than the molecule's heat bath can enhance the ability of the whole working substance, formed by the heat engine plus the MD, to do work outside. This observation reveals that the essential role of the MD is to drive the whole working substance off equilibrium, or equivalently, to work between two heat baths with different effective temperatures. The elaborate studies with this model explicitly reveal the effect of finite size off the classical limit or thermodynamic limit, which contradicts common sense on a Szilard heat engine (SHE). The quantum SHE's efficiency is evaluated in detail to prove the validity of the second law of thermodynamics.
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Meng L, Lu L, Murphy KM, Yuede CM, Cheverud JM, Csernansky JG, Dong H. Neuroanatomic and behavioral traits for autistic disorders in age-specific restricted index selection mice. Neuroscience 2011; 189:215-22. [PMID: 21624435 DOI: 10.1016/j.neuroscience.2011.05.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 04/26/2011] [Accepted: 05/07/2011] [Indexed: 01/18/2023]
Abstract
The pathogenesis of neurodevelopmental disorders such as autism is believed to be influenced by interactions between genetic and environmental factors, and appropriate animal models are needed to assess the influence of such factors on relevant neurodevelopmental phenotypes. A set of inbred mouse strains (Atchley strains) including A12 (E+L0) and A22 (E-L0) were generated by age-specific restricted index selection from a baseline random-bred ICR mouse population obtained from Harlan Sprague-Dawley [Atchley et al. (1997) Genetics 146(2):629-640; Indianapolis, IN, USA). As compared with the A22 strain, A12 mice had significantly increased early (P0-P10) body weight gain with minimal changes in late (P28-P56) body weight gain. We found that these strains also differed in brain weight, brain volume, cell proliferation, and FGF-2 levels in certain brain regions. Specifically, brain weight and volume were significantly greater in A12 mice than that in A22 mice at P10 and P28. Quantitative analysis of bromodeoxyuridine (BrdU) labeling of proliferating cells showed that the number of BrdU-positive cells in the A12 strain were significantly greater in the frontal cortex and lesser in the dentate gyrus than that in the A22 strain at P28. Western blot revealed that fibroblast growth factors-2 (FGF-2), but not brain-derived neurotrophic factor (BDNF), expression was significantly increased in the frontal cortex of A12 strain at P28. Also, A12 mice exhibited decreased intra-strain social interaction and increased repetitive stereotyped behaviors at P28. Our study suggests that A12 mice may partially mimic the anatomic and behavioral traits of patients with neurodevelopmental disorders such as autism spectrum disorders, and therefore may yield insights into the developmental mechanisms involved in their pathogenesis.
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Dong X, Ko KH, Chow J, Tuo B, Barrett KE, Dong H. Expression of acid-sensing ion channels in intestinal epithelial cells and their role in the regulation of duodenal mucosal bicarbonate secretion. Acta Physiol (Oxf) 2011; 201:97-107. [PMID: 20969730 DOI: 10.1111/j.1748-1716.2010.02207.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
AIMS As little is currently known about acid-sensing ion channels (ASICs) in intestinal epithelial cells, the aims of the present study were to investigate the expression and function of ASICs in intestinal epithelial cells, particularly their physiological role in the acid-stimulated duodenal mucosal bicarbonate secretion (DMBS). METHODS RT-PCR and digital Ca²(+) imaging were used to determine the expression and function of ASICs in HT29 cells and SCBN cells, intestinal epithelial crypt cell lines. The acid-stimulated DMBS was measured in C57 black mice in vivo to study the role of ASICs in this physiological process. RESULTS ASIC1a mRNA expression was detected in the duodenal mucosa stripped from mice and epithelial cell lines, in which cytoplasmic free Ca²(+) ([Ca²(+) ](cyt)) in response to extracellular acidosis was also increased. In Ca²(+) -containing solutions, acidosis (pH 6.0-5.0) raised [Ca²(+) ](cyt) in both HT29 cells and SCBN cells in a similar pH-dependent manner. Acidosis-induced increase in [Ca²(+) ](cyt) was markedly inhibited by amiloride (an ASICs blocker), SK&F96365 (a blocker for non-selective cation channels), or in Ca²(+) -free solutions; but was abolished by amiloride in Ca²(+) -free solutions. However, acidosis-induced increase in [Ca²(+) ](cyt) was slightly affected by U73122 (a PLC inhibitor), or nifedipine (a voltage-gated Ca²(+) channel blocker). After acidosis raised [Ca²(+) ](cyt) , stimulation of purinergic receptors with ATP further increased [Ca²(+) ](cyt) , but acidosis-induced increase in [Ca²(+) ](cyt) was not altered by suramin. Moreover, acid-stimulated murine DMBS was significantly attenuated by amiloride. CONCLUSION Therefore, ASICs are functionally expressed in intestinal epithelial cells, and may play a role in acid-stimulated DMBS through a Ca²(+) signalling pathway.
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Peng B, Lu Z, Dong H, Chu H. P23-9 Clinical and electrophysiological studies of botulinum toxin A for hemifacial spasm accompanied by auricular symptoms. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60984-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kaklamani G, Mehrban N, Chen J, Bowen J, Dong H, Grover L, Stamboulis A. Effect of plasma surface modification on the biocompatibility of UHMWPE. Biomed Mater 2010; 5:054102. [PMID: 20876959 DOI: 10.1088/1748-6041/5/5/054102] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this paper active screen plasma nitriding (ASPN) is used to chemically modify the surface of UHMWPE. This is an unexplored and new area of research. ASPN allows the homogeneous treatment of any shape or surface at low temperature; therefore, it was thought that ASPN would be an effective technique to modify organic polymer surfaces. ASPN experiments were carried out at 120 °C using a dc plasma nitriding unit with a 25% N(2) and 75% H(2) atmosphere at 2.5 mbar of pressure. UHMWPE samples treated for different time periods were characterized by nanoindentation, FTIR, XPS, interferometry and SEM. A 3T3 fibroblast cell line was used for in vitro cell culture experiments. Nanoindentation of UHMWPE showed that hardness and elastic modulus increased with ASPN treatment compared to the untreated material. FTIR spectra did not show significant differences between the untreated and treated samples; however, some changes were observed at 30 min of treatment in the range of 1500-1700 cm(-1) associated mainly with the presence of N-H groups. XPS studies showed that nitrogen was present on the surface and its amount increased with treatment time. Interferometry showed that no significant changes were observed on the surfaces after the treatment. Finally, cell culture experiments and SEM showed that fibroblasts attached and proliferated to a greater extent on the plasma-treated surfaces leading to the conclusion that ASPN surface treatment can potentially significantly improve the biocompatibility behaviour of polymeric materials.
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Wang X, Dong H, Zhang X, Xu Y, Zhang S. Numerical Simulation of Absorbing CO2 with Ionic Liquids. Chem Eng Technol 2010. [DOI: 10.1002/ceat.201000009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Dong Y, Li X, Bell T, Sammons R, Dong H. Surface microstructure and antibacterial property of an active-screen plasma alloyed austenitic stainless steel surface with Cu and N. Biomed Mater 2010; 5:054105. [DOI: 10.1088/1748-6041/5/5/054105] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Souares A, Savadogo G, Dong H, Parmar D, Sié A, Sauerborn R. Using community wealth ranking to identify the poor for subsidies: a case study of community-based health insurance in Nouna, Burkina Faso. HEALTH & SOCIAL CARE IN THE COMMUNITY 2010; 18:363-368. [PMID: 20180867 DOI: 10.1111/j.1365-2524.2009.00905.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Access to health-care is low in developing countries. Poor people are less likely to seek care than those who are better off. Community-based health insurance (CBI) aims to improve healthcare utilisation by removing financial barriers, unfortunately CBI has been less effective in securing equity than expected. Poor people, who probably require greater protection from catastrophic health expenses, are less likely to enrol in such schemes. Therefore, it is important to implement targeted interventions so that the most in need are not left out. CBI has been offered to a district in Burkina Faso, comprising 7762 households in 41 villages and the district capital of Nouna since 2004. Community wealth ranking (CWR) was used in 2007 to identify the poorest quintile of households who were subsequently offered insurance at half the usual premium rate. The CWR is easy to implement and requires minimal resources such as interviews with local informants. As used in this study, the agreement between the key informants was more (37.5%) in the villages than in Nouna town (27.3%). CBI management unit only received nine complaints from villagers who considered that some households had been wrongly identified. Among the poorest, the annual enrolment increased from 18 households (1.1%) in 2006 to 186 (11.1%) in 2007 after subsidies. CWR is an alternative methodology to identify poor households and was found to be more cost and time efficient compared to other methods. It could be successfully replicated in low-income countries with similar contexts. Moreover, targeted subsidies had a positive impact on enrolment.
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Dong H, Rowland I, Tuohy KM, Thomas LV, Yaqoob P. Selective effects of Lactobacillus casei Shirota on T cell activation, natural killer cell activity and cytokine production. Clin Exp Immunol 2010; 161:378-88. [PMID: 20456417 DOI: 10.1111/j.1365-2249.2010.04173.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Modulation of host immunity is an important potential mechanism by which probiotics confer health benefits. This study was designed to investigate the effects of a probiotic strain, Lactobacillus casei Shirota (LcS), on immune function using human peripheral blood mononuclear cells (PBMC) in vitro. In addition, the role of monocytes in LcS-induced immunity was also explored. LcS promoted natural killer (NK) cell activity and preferentially induced expression of CD69 and CD25 on CD8(+) and CD56(+) subsets in the absence of any other stimulus. LcS also induced production of interleukin (IL)-1beta, IL-6, tumour necrosis factor (TNF)-alpha, IL-12 and IL-10 in the absence of lipopolysaccharide (LPS). In the presence of LPS, LcS enhanced IL-1beta production but inhibited LPS-induced IL-10 and IL-6 production, and had no further effect on TNF-alpha and IL-12 production. Monocyte depletion reduced significantly the impact of LcS on lymphocyte activation, cytokine production and natural killer (NK) cell activity. In conclusion, LcS activated cytotoxic lymphocytes preferentially in both the innate and specific immune systems, which suggests that LcS could potentiate the destruction of infected cells in the body. LcS also induced both proinflammatory and anti-inflammatory cytokine production in the absence of LPS, but in some cases inhibited LPS-induced cytokine production. Monocytes play an important role in LcS-induced immunological responses.
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Demel SL, Dong H, Swain GM, Wang X, Kreulen DL, Galligan JJ. Antioxidant treatment restores prejunctional regulation of purinergic transmission in mesenteric arteries of deoxycorticosterone acetate-salt hypertensive rats. Neuroscience 2010; 168:335-45. [PMID: 20398741 DOI: 10.1016/j.neuroscience.2010.03.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Revised: 03/27/2010] [Accepted: 03/30/2010] [Indexed: 11/30/2022]
Abstract
Norepinephrine (NE) and ATP are co-released by periarterial sympathetic nerves. In mesenteric arteries (MA) from deoxycorticosterone-acetate (DOCA)-salt hypertensive rats, ATP, but not norepinephrine, release is impaired suggesting that their release may be regulated differently. We tested the hypothesis that different calcium channels contribute to ATP and norepinephrine release from sympathetic nerves in vitro in MA from normotensive and DOCA-salt hypertensive rats and that oxidative stress disrupts prejunctional regulation of co-transmission. Excitatory junction potentials (EJPs) were used to measure ATP release. Norepinephrine release was measured amperometrically with carbon-fiber microelectrodes. CdCl2 (30 microM) inhibited norepinephrine release in sham and DOCA-salt arteries by 78% and 85%, respectively. The N-type calcium channel antagonist, omega-conotoxin GVIA (CTX, 0.1 microM) inhibited norepinephrine release by 50% and 67% in normotensive and DOCA-salt arteries, respectively while CTX blocked EJPs. The P/Q-type calcium channel antagonist omega-agatoxin IVA (ATX; 0.03 microM) reduced norepinephrine release in sham but not DOCA-salt arteries and increased EJPs in sham but not DOCA-salt arteries. ATX did not increase EJPs in sham arteries in the presence of the alpha(2)-adrenergic receptor antagonist, yohimbine (1 microM). alpha(2)-Autoreceptor-sensitive EJP facilitation is impaired in DOCA-salt hypertension but this response is restored in DOCA-salt rats treated chronically with the antioxidant, apocynin. Apocynin restored alpha(2)-autoreceptor regulation of norepinephrine release. We conclude that ATP released from periarterial sympathetic nerves is controlled directly by N-type calcium channels. Norepinephrine release is controlled by N and P/Q type calcium channels. Norepinephrine release controlled by P/Q channels acts at alpha(2)-adrenergic receptors to inhibit norepinephrine release suggesting that there may be multiple pools of norepinephrine in periarterial sympathetic nerves. Regulation of norepinephrine release by alpha(2)-autoreceptors and P/Q-type channels is impaired in DOCA-salt hypertension and alpha(2)-autoreceptor function is disrupted by oxidative stress.
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Dong H. Experimental investigations of the influence of material and thickness on fracture under pure mode II loading. EPJ WEB OF CONFERENCES 2010. [DOI: 10.1051/epjconf/20100616008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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171
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Dong H, Gong YD, Paulose V, Shum P, Olivo M. Optimum input states of polarization for Mueller matrix measurement in a system having finite polarization-dependent loss or gain. OPTICS EXPRESS 2009; 17:23044-23057. [PMID: 20052231 DOI: 10.1364/oe.17.023044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We present the theoretical and simulation results of the relationship between three input states of polarization (SOP) and the Mueller matrix measurement error in an optical system having birefringence and finite polarization-dependent loss or gain (PDL/G). By using the condition number as the criterion, it can be theoretically demonstrated that the three input SOPs should be equally-spaced on the Poincaré sphere and centered on the reversed PDL/G vector to achieve better measurement accuracy in a single test. Further, an upper bound of the mean of the Mueller matrix measurement error is derived when the measurement errors of output Stokes parameters independently and identically follow the ideal Gaussian distribution. This upper bound also shows that the statistically best Mueller matrix measurement accuracy can be obtained when the three input SOPs have the same relationship mentioned above. Simulation results confirm the validity of the theoretical findings.
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Dong H, Gong YD, Paulose V, Shum P, Olivo M. Effect of input states of polarization on the measurement error of Mueller matrix in a system having small polarization-dependent loss or gain. OPTICS EXPRESS 2009; 17:13017-13030. [PMID: 19654706 DOI: 10.1364/oe.17.013017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
For the measurement of Mueller matrix in an optical system with birefringence and small polarization-dependent loss or gain (PDL/G), we theoretically derive the statistical relationship between the Mueller matrix measurement error and three input states of polarization (SOP). Based on this theoretical relation and simulation results, it can be concluded that the three input SOPs, that are coplanar with an angle of 120 degrees between any two of them in Stokes space, can be considered as a substitute for the best input SOPs which can statistically lead to the minimum measurement error. This conclusion is valid when the PDL/G of the optical system under test is less than 0.35 dB.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Kertzscher G, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for charged higgs bosons decaying into top and bottom quarks in pp[over ] collisions. PHYSICAL REVIEW LETTERS 2009; 102:191802. [PMID: 19518943 DOI: 10.1103/physrevlett.102.191802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 04/20/2009] [Indexed: 05/27/2023]
Abstract
We describe a search for production of a charged Higgs boson, qq[over ];{'}-->H;{+}, reconstructed in the tb[over ] final state in the mass range 180< or =M_{H;{+}}< or =300 GeV. The search was undertaken at the Fermilab Tevatron collider with a center-of-mass energy sqrt[s]=1.96 TeV and uses 0.9 fb;{-1} of data collected with the D0 detector. We find no evidence for charged Higgs boson production and set upper limits on the production cross section in the types I, II, and III two-Higgs-doublet models (2HDMs). An excluded region in the (M_{H;{+}}, tanbeta) plane for type I 2HDM is presented.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the lifetime of the Bc+/- meson in the semileptonic decay channel. PHYSICAL REVIEW LETTERS 2009; 102:092001. [PMID: 19392512 DOI: 10.1103/physrevlett.102.092001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2008] [Indexed: 05/27/2023]
Abstract
Using approximately 1.3 fb(-1) of data collected by the D0 detector between 2002 and 2006, we measure the lifetime of the Bc+/- meson in the Bc-/+-->J/psimicro+/-+X final state. A simultaneous unbinned likelihood fit to the J/psi+micro invariant mass and lifetime distributions yields a signal of 881+/-80(stat) candidates and a lifetime measurement of tau(Bc+/-)=0.448(-0.036)(+0.038)(stat)+/-0.032(syst) ps.
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Bo H, Wei XQ, Dong H, Zhang Y, Lv P, Liu W, Koutoulaki A, Gao XM. Elevated expression of transmembrane IL-15 in immune cells correlates with the development of murine lupus: a potential target for immunotherapy against SLE. Scand J Immunol 2009; 69:119-29. [PMID: 19170964 DOI: 10.1111/j.1365-3083.2008.02197.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Presentation in trans by the Interleukin-15 receptor alpha chain (IL-15Ralpha) has been suggested as the main mechanism for IL-15 anchoring to the cell surface, but it is also evident that IL-15 can exist as a transmembrane protein. We herein demonstrate that replacement of the first 41 residues of human IL-15 (hIL-15) with Igkappa chain leader sequence resulted in secretion of most of the recombinant hIL-15 expressed in transfectant cells, thus identifying the transmembrane region of IL-15. A fusion protein (hIL-15Ralpha-Fc) between the extracellular domain of hIL-15Ralpha and the Fc fragment of IgG1 was prepared and shown to be able to bind with transmembrane IL-15 (tmIL-15). The level of tmIL-15 expression in macrophages, activated T cells and B cells from 6-month-old BXSB male mice, an animal model for systemic lupus erythematosus (SLE), was significantly increased compared with that from BXSB females or young males. In addition, hIL-15Ralpha-Fc was able to block the T cell stimulating and anti-apoptotic effect of the tmIL-15-positive BXSB macrophages in vitro. Intravenous administration of hIL-15Ralpha-Fc reduced the titre of autoantibodies against dsDNA and also proteinuria in aged BXSB males, implying that neutralization of IL-15 activity in vivo may be an effective way of treating SLE.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Devaughan K, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Johnston D, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Voutilainen M, Wagner R, Wahl HD, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Williams M, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for associated W and Higgs Boson production in pp[over ] collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2009; 102:051803. [PMID: 19257504 DOI: 10.1103/physrevlett.102.051803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2008] [Indexed: 05/27/2023]
Abstract
We present results of a search for WH-->lnubb[over ] production in pp[over ] collisions based on the analysis of 1.05 fb;{-1} of data collected by the D0 experiment at the Fermilab Tevatron, using a neural network for separating the signal from backgrounds. No signal-like excess is observed, and we set 95% C.L. upper limits on the WH production cross section multiplied by the branching ratio for H-->bb[over ] for Higgs boson masses between 100 and 150 GeV. For a mass of 115 GeV, we obtain an observed (expected) limit of 1.5 (1.4) pb, a factor of 11.4 (10.7) times larger than the standard model prediction.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee S, Banerjee P, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev S, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chan K, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grüendahl S, Grünewald MW, Guo J, Guo F, Gutierrez P, Gutierrez G, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Hansson P, Harder K, Harel A, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalinin AM, Kalk JR, Kalk JM, Kappler S, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaur R, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Korablev VM, Kozelov AV, Krop D, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lehner F, Lellouch J, Leveque J, Li J, Li QZ, Li L, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer J, Meyer A, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow J, Snow GR, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Strauss E, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov S, Uvarov L, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weber G, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the semileptonic branching ratio of B_{s};{0} to an orbitally excited D_{s};{**} state: Br(B_{s};{0}-->D_{s1};{-}(2536)mu;{+}nuX). PHYSICAL REVIEW LETTERS 2009; 102:051801. [PMID: 19257502 DOI: 10.1103/physrevlett.102.051801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2007] [Indexed: 05/27/2023]
Abstract
In a data sample of approximately 1.3 fb;{-1} collected with the D0 detector between 2002 and 2006, the orbitally excited charm state D_{s1};{+/-}(2536) has been observed with a measured mass of 2535.7+/-0.6(stat)+/-0.5(syst) MeV/c;{2} via the decay mode B_{s};{0}-->D_{s1};{-}(2536)mu;{+}nu_{mu}X. A first measurement is made of the branching ratio product Br(b[over ]-->D_{s1};{-}(2536)mu;{+}nu_{mu}X)xBr(D_{s1};{-}-->D;{*-}K_{S};{0}). Assuming that D_{s1};{-}(2536) production in semileptonic decay is entirely from B_{s};{0}, an extraction of the semileptonic branching ratio Br(B_{s};{0}-->D_{s1};{-}(2536)mu;{+}nu_{mu}X) is made.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Devaughan K, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Johnston D, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Voutilainen M, Wagner R, Wahl HD, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Williams M, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:251802. [PMID: 19113695 DOI: 10.1103/physrevlett.101.251802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2008] [Indexed: 05/27/2023]
Abstract
We report a search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology, using an integrated luminosity of 0.93 fb;{-1} recorded by the D0 detector at the Fermilab Tevatron pp[over ] Collider. The analysis includes signal contributions from pp[over ]-->ZH-->nunu[over ]bb[over ], as well as from WH production in which the charged lepton from the W boson decay is undetected. Neural networks are used to separate signal from background. In the absence of a signal, we set limits on sigma(pp[over ]-->VH)xB(H-->bb[over ]) at the 95% C.L. of 2.6-2.3 pb, for Higgs boson masses in the range 105-135 GeV, where V=W, Z. The corresponding expected limits range from 2.8 to 2.0 pb.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for third generation scalar leptoquarks decaying into taub. PHYSICAL REVIEW LETTERS 2008; 101:241802. [PMID: 19113613 DOI: 10.1103/physrevlett.101.241802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Indexed: 05/27/2023]
Abstract
We have searched for third generation leptoquarks (LQ3) using 1.05 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron Collider operating at sqrt[s]=1.96 TeV. We set a 95% C.L. lower limit of 210 GeV on the mass of a scalar LQ3 state decaying solely to a b quark and a tau lepton.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalinin AM, Kalk JM, Kappler S, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaur R, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Korablev VM, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of Bs0 mixing parameters from the flavor-tagged decay Bs0-->J/psiphi. PHYSICAL REVIEW LETTERS 2008; 101:241801. [PMID: 19113612 DOI: 10.1103/physrevlett.101.241801] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2008] [Revised: 10/20/2008] [Indexed: 05/27/2023]
Abstract
From an analysis of the flavor-tagged decay Bs0-->J/psiphi we obtain the width difference between the Bs0 light and heavy mass eigenstates, DeltaGammas = 0.19+/-0.07(stat)(-0.01)+0.02(syst) ps(-1), and the CP-violating phase, phi s= -0.57(-0.30)+0.24(stat)(-0.02)+0.08(syst). The allowed 90% CL intervals of DeltaGammas and phi s are 0.06 < DeltaGammas < 0.30 ps(-1) and -1.20 < phi s < 0.06, respectively. The data sample corresponds to an integrated luminosity of 2.8 fb(-1) accumulated with the D0 detector at the Fermilab Tevatron collider.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, DeVaughan K, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Johnston D, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Komissarov EV, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merekov YP, Merkin M, Merritt KW, Meyer A, Meyer J, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Orduna J, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rozhdestvenski A, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verdier P, Vertogradov LS, Vertogradova Y, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Voutilainen M, Wagner R, Wahl HD, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Williams M, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Observation of the doubly strange b baryon Omegab-. PHYSICAL REVIEW LETTERS 2008; 101:232002. [PMID: 19113541 DOI: 10.1103/physrevlett.101.232002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2008] [Indexed: 05/27/2023]
Abstract
We report the observation of the doubly strange b baryon Omegab- in the decay channel Omegab(-)-->J/psiOmega-, with J/psi-->mu+mu(-) and Omega(-)-->LambdaK(-)-->(ppi-)K-, in pp collisions at sqrt[s]=1.96 TeV. Using approximately 1.3 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron Collider, we observe 17.8+/-4.9(stat)+/-0.8(syst) Omegab- signal events at a mass of 6.165+/-0.010(stat)+/-0.013(syst) GeV. The significance of the observed signal is 5.4sigma, corresponding to a probability of 6.7 x 10(-8) of it arising from a background fluctuation.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for anomalous Wtb couplings in single top quark production. PHYSICAL REVIEW LETTERS 2008; 101:221801. [PMID: 19113474 DOI: 10.1103/physrevlett.101.221801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Indexed: 05/27/2023]
Abstract
In 0.9 fb(-1) of pp[over] collisions, the D0 Collaboration presented evidence for single top quark production in events with an isolated lepton, missing transverse momentum, and two to four jets. We examine these data to study the Lorentz structure of the Wtb coupling. The standard model predicts a left-handed vector coupling at the Wtb vertex. The most general lowest dimension, CP-conserving Lagrangian admits right-handed vector and left- or right-handed tensor couplings as well. We find that the data prefer the left-handed vector coupling and set upper limits on the anomalous couplings. These are the first direct constraints on a general Wtb interaction and the first direct limits on left- and right-handed tensor couplings.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for neutral Higgs bosons in multi-b-jet events in pp[over] collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:221802. [PMID: 19113475 DOI: 10.1103/physrevlett.101.221802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Indexed: 05/27/2023]
Abstract
Data recorded by the D0 experiment at the Fermilab Tevatron Collider are analyzed to search for neutral Higgs bosons produced in association with b quarks. This production mode can be enhanced in the minimal supersymmetric standard model (MSSM). The search is performed in the three b quark channel using multijet triggered events corresponding to an integrated luminosity of 1 fb(-1). No statistically significant excess of events with respect to the predicted background is observed and limits are set in the MSSM parameter space.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the electron charge asymmetry in pp[over ]-->W+X-->enu+X events at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:211801. [PMID: 19113403 DOI: 10.1103/physrevlett.101.211801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2008] [Indexed: 05/27/2023]
Abstract
We present a measurement of the electron charge asymmetry in pp[over ]-->W+X-->enu+X events at a center of mass energy of 1.96 TeV using 0.75 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron Collider. The asymmetry is measured as a function of the electron transverse momentum and pseudorapidity in the interval (-3.2, 3.2) and is compared with expectations from next-to-leading order calculations in perturbative quantum chromodynamics. These measurements will allow more accurate determinations of the proton parton distribution functions.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the forward-backward charge asymmetry and extraction of sin2thetaWeff in pp-->Z/gamma* + X-->e+e- +X events produced at sqrt[s] = 1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:191801. [PMID: 19113259 DOI: 10.1103/physrevlett.101.191801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2008] [Indexed: 05/27/2023]
Abstract
We present a measurement of the forward-backward charge asymmetry (A FB) in pp-->Z/gamma* + X-->e+e(-) + X events at a center-of-mass energy of 1.96 TeV using 1.1 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron collider. A FB is measured as a function of the invariant mass of the electron-positron pair, and found to be consistent with the standard model prediction. We use the A FB measurement to extract the effective weak mixing angle sin2thetaWeff = 0.2326+/-0.0018(stat)+/-0.0006(syst).
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Jesus ACSA, Atramentov O, Avila C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the polarization of the upsilon(1S) and upsilon(2S) states in pp collisions at square root[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:182004. [PMID: 18999821 DOI: 10.1103/physrevlett.101.182004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Indexed: 05/27/2023]
Abstract
We present a study of the polarization of the Upsilon(1S) and Upsilon(2S) states using a 1.3 fb;{-1} data sample collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron Collider. We measure the polarization parameter alpha=(sigma_{T}-2sigma_{L})/(sigma_{T}+2sigma_{L}), where sigma_{T} and sigma_{L} are the transversely and longitudinally polarized components of the production cross section, as a function of the transverse momentum (p_{T};{Upsilon}) for the Upsilon(1S) and Upsilon(2S). Significant p_{T};{Upsilon}-dependent longitudinal polarization is observed for the Upsilon(1S). A comparison with theoretical models is presented.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Jesus ACSA, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Y Garzón GJO, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Precise measurement of the top-quark mass from lepton + jets events. PHYSICAL REVIEW LETTERS 2008; 101:182001. [PMID: 18999818 DOI: 10.1103/physrevlett.101.182001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2008] [Indexed: 05/27/2023]
Abstract
We measure the mass of the top quark using top-quark pair candidate events in the lepton+jets channel from data corresponding to 1 fb;{-1} of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron collider. We use a likelihood technique that reduces the jet energy scale uncertainty by combining an in situ jet energy calibration with the independent constraint on the jet energy scale (JES) from the calibration derived using photon+jets and dijet samples. We find the mass of the top quark to be 171.5+/-1.8(stat.+JES)+/-1.1(syst.) GeV.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Cerminara G, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, DeVaughan K, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Facini G, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Johnston D, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Razumov I, Renkel P, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Voutilainen M, Wagner R, Wahl HD, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Williams M, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Observation of ZZ production in p-p collisions at sqrt s=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:171803. [PMID: 18999740 DOI: 10.1103/physrevlett.101.171803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Indexed: 05/27/2023]
Abstract
We present an observation for ZZ-->l+l-l'+l'- (l, l'=e or mu) production in p[over]p collisions at a center-of-mass energy of sqrt[s]=1.96 TeV. Using 1.7 fb(-1) of data collected by the D0 experiment at the Fermilab Tevatron Collider, we observe three candidate events with an expected background of 0.14(+0.03)_(-0.02) events. The significance of this observation is 5.3 standard deviations. The combination of D0 results in this channel, as well as in ZZ-->l+l- nu[over]nu, yields a significance of 5.7 standard deviations and a combined cross section of sigma(ZZ)=1.60+/-0.63(stat)+0.16_-0.17(syst) pb.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu XB, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, DeVaughan K, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Geng W, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Johnston D, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Li J, Li L, Li QZ, Lietti SM, Lim JK, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin VV, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verdier P, Vertogradov LS, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Voutilainen M, Wagner R, Wahl HD, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Williams M, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Yin H, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for long-lived particles decaying into electron or photon pairs with the D0 detector. PHYSICAL REVIEW LETTERS 2008; 101:111802. [PMID: 18851273 DOI: 10.1103/physrevlett.101.111802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Indexed: 05/26/2023]
Abstract
In this Letter we report on a search for long-lived particles that decay into final states with two electrons or photons. Such long-lived particles arise in a variety of theoretical models, such as hidden valleys and supersymmetry with gauge-mediated breaking. By precisely reconstructing the direction of the electromagnetic shower we are able to probe much longer lifetimes than previously explored. We see no evidence of the existence of such long-lived particles and interpret this search as a quasi model-independent limit on their production cross section, as well as a limit on a long-lived fourth generation quark.
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Dong H, Chen J, Chen W. In vitro enhancing effects of thymic dendritic cells on apoptotic cell death of thymocytes. SCIENCE IN CHINA. SERIES C, LIFE SCIENCES 2008; 41:87-92. [PMID: 18726275 DOI: 10.1007/bf02882710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/1997] [Indexed: 11/28/2022]
Abstract
Using terminal deoxynucleotide transferase-mediated dUTP-digoxigenin nick end labeling (TUNEL) assay and propidium iodide-DNA staining flow cytometry assay, the effects of mouse thymic dendritic cells (MTSC4) on the process of programmed cell death of thymocytes in vitro were investigated. It was noticed that thymocytes bound to MTSC4 used in this study. That the percentages of apoptotic nuclei of the bound thymocytes on MTSC4 were much higher than those of medium-cultured thymocytes, while the bound thymocytes on mouse thymic epithelial cell (MTEC1) showed much lower percentages of apoptosis. FACS analysis quantitatively confirmed the observation. Phenotype analysis showed that MTSC4 induced the deletion of CD4 + CD8 + cells and CD4 + CD8-.cells in 18 h of coculture. The results suggest that the negative selection of medullary thymocytes may be achieved by thymic dendritic cells through their enhancing effects on apoptosis.
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Dong H, Chen J, Chen W. Membrane molecules in induction of apoptosis of thymocytes by mouse thymic dendritic cells which express Fas ligands. SCIENCE IN CHINA. SERIES C, LIFE SCIENCES 2008; 41:189-94. [PMID: 18726205 DOI: 10.1007/bf02882726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/1997] [Indexed: 11/30/2022]
Abstract
Apoptosis of thymocytes is involved in the negative selection of thymus, but it remains unclear how the cell death of thymocytes is regulated by the thymic stromal cells. By using immunohistochemistry, TdT-mediated dUTP nick end labeling (TUNEL) and flow cytometry methods, it was found that Fas ligand was expressed in the thymic medulla and a mouse thymic medullary type dendritic cell line (MTSC4). The DNA fragmentation and TUNEL positive staining of thymocytes were detected in 6 h of cocultures with MTSC4. 97 % of the thymocytes which bound to MTSC4 were Fas antigen positive cells. The DNA fragmentation of thymocytes induced by MTSC4 was inhibited by the addition of 20 mmol/L N-acetyl galactosamin monosaccharide and the pretreatment of a monoclonal antibody (PF-18-3) which recognized a putative antigen on MTSC4. These results suggested that the mechanisms of induction of cell death by stromal cells may include the interactions of multiple cell surface molecules, in addition to the Fas/Fas ligand system.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalinin AM, Kalk JM, Kappler S, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Korablev VM, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for pair production of doubly charged Higgs bosons in the H++H- - -->mu+ mu+ mu- mu- final state. PHYSICAL REVIEW LETTERS 2008; 101:071803. [PMID: 18764523 DOI: 10.1103/physrevlett.101.071803] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2008] [Indexed: 05/26/2023]
Abstract
We report the results of a search for pair production of doubly charged Higgs bosons via pp over-->H++H - - X-->mu+ mu+ mu- mu- X at sqrt s=1.96 TeV. We use a data set corresponding to an integrated luminosity of 1.1 fb(-1) collected from 2002 to 2006 by the D0 detector at the Fermilab Tevatron Collider. In the absence of an excess above the standard model background, lower mass limits of M(H L +/- +/-) >150 GeV/c2 and M(H R+/- +/-) >127 GeV/c2 at 95% C.L. are set, respectively, for left-handed and right-handed doubly charged Higgs bosons assuming a 100% branching ratio into muons.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk JM, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin VA, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Sanghi B, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yang WC, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for Higgs bosons decaying to tau pairs in pp over collisions with the D0 detector. PHYSICAL REVIEW LETTERS 2008; 101:071804. [PMID: 18764524 DOI: 10.1103/physrevlett.101.071804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Indexed: 05/26/2023]
Abstract
We present a search for the production of neutral Higgs bosons varphi decaying into tau+tau - final states in pp over collisions at a center-of-mass energy of 1.96 TeV. The data, corresponding to an integrated luminosity of approximately 1 fb(-1), were collected by the D0 experiment at the Fermilab Tevatron Collider. Limits on the production cross section times branching ratio are set. The results are interpreted in the minimal supersymmetric standard model yielding limits that are the most stringent to date at hadron colliders.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalinin AM, Kalk JM, Kappler S, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaur R, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Korablev VM, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the inclusive jet cross section in pp[over] collisions at square root [s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:062001. [PMID: 18764450 DOI: 10.1103/physrevlett.101.062001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2008] [Indexed: 05/26/2023]
Abstract
We report on a measurement of the inclusive jet cross section in pp[over ] collisions at a center-of-mass energy sqrt[s]=1.96 TeV using data collected by the D0 experiment at the Fermilab Tevatron Collider corresponding to an integrated luminosity of 0.70 fb;{-1}. The data cover jet transverse momenta from 50 to 600 GeV and jet rapidities in the range -2.4 to 2.4. Detailed studies of correlations between systematic uncertainties in transverse momentum and rapidity are presented, and the cross section measurements are found to be in good agreement with next-to-leading order QCD calculations.
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Chapman NH, Burt C, Dong H, Nicholson P. The development of PCR-based markers for the selection of eyespot resistance genes Pch1 and Pch2. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2008; 117:425-33. [PMID: 18483719 DOI: 10.1007/s00122-008-0786-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Accepted: 05/02/2008] [Indexed: 05/11/2023]
Abstract
Two eyespot resistance genes (Pch1 and Pch2) have been characterised in wheat. The potent resistance gene Pch1, transferred from Aegilops ventricosa, is located on the distal end of the long arm of chromosome 7D (7DL). Pch2 derives from the variety Cappelle Desprez and is located at the distal end of chromosome 7AL. The RFLP marker Xpsr121 and the endopeptidase isozyme allele Ep-D1b, are very closely linked to Pch1, probably due to reduced recombination in the region of the introgressed A. ventricosa segment. Pch2 is less closely linked to these markers but is thought to be closer to Xpsr121 than to Ep-A1b. In the present study simple sequence repeat (SSR) markers were integrated into the genetic map of a single chromosome (7D) recombinant (RVPM) population segregating for Pch1. Sequence-tagged-site (STS)-based assays were developed for Xpsp121 and a 7DL wheat EST containing a SSR. SSR markers Xwmc14 and Xbarc97 and the Xpsr121-derived marker co-segregated with Pch1 in the RVPM population. A single chromosome (7A) recombinant population segregating for Pch2 was screened for eyespot resistance and mapped using SSRs. QTL interval mapping closely associated Pch2 with the SSR marker Xwmc525.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalinin AM, Kalk JM, Kappler S, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Korablev VM, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for decay of a fermiophobic Higgs boson hf-->gammagamma with the D0 detector at sqrt s=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:051801. [PMID: 18764384 DOI: 10.1103/physrevlett.101.051801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2008] [Indexed: 05/26/2023]
Abstract
We report the results of a search for a narrow resonance decaying into two photons in 1.1 fb;{-1} of data collected by the D0 experiment at the Fermilab Tevatron Collider during the period 2002-2006. We find no evidence for such a resonance and set a lower limit on the mass of a fermiophobic Higgs boson of m_{h_{f}}>100 GeV at the 95% C.L. This exclusion limit exceeds those obtained in previous searches at the Fermilab Tevatron and covers a significant region of the parameter space B(h_{f}-->gammagamma) vs m_{h_{f}} which was not accessible at the CERN Large Electron-Positron Collider.
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Dong H, Bi P, Xi Y. Determination of Pyrethroid Pesticide Residues in Vegetables by Solvent Sublation Followed by High-Performance Liquid Chromatography. J Chromatogr Sci 2008; 46:622-6. [DOI: 10.1093/chromsci/46.7.622] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey BCK, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan K, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Gelé D, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haefner P, Hagopian S, Haley J, Hall I, Hall RE, Han L, Harder K, Harel A, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Hegeman JG, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalinin AM, Kalk JM, Kappler S, Karmanov D, Kasper PA, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim TJ, Kirby MH, Kirsch M, Klima B, Kohli JM, Konrath JP, Korablev VM, Kozelov AV, Kraus J, Krop D, Kuhl T, Kumar A, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee WM, Leflat A, Lellouch J, Leveque J, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti HJ, Luna R, Lyon AL, Maciel AKA, Mackin D, Madaras RJ, Mättig P, Magass C, Magerkurth A, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nogima H, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for large extra dimensions via single photon plus missing energy final states at sqrt s = 1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:011601. [PMID: 18764100 DOI: 10.1103/physrevlett.101.011601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Indexed: 05/26/2023]
Abstract
We report on a search for large extra dimensions in a data sample of approximately 1 fb(-1) of pp[over] collisions at sqrt s=1.96 TeV. We investigate Kaluza-Klein graviton production with a photon and missing transverse energy in the final state. At the 95% C.L. we set limits on the fundamental mass scale M(D) from 884 to 778 GeV for two to eight extra dimensions.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burke S, Burnett TH, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, 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Observation of the Bc meson in the exclusive decay Bc-->J/psipi. PHYSICAL REVIEW LETTERS 2008; 101:012001. [PMID: 18764103 DOI: 10.1103/physrevlett.101.012001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Indexed: 05/26/2023]
Abstract
A fully reconstructed Bc-->J/psipi signal is observed with the D0 detector at the Fermilab Tevatron pp[over] collider using 1.3 fb(-1) of integrated luminosity. The signal consists of 54+/-12 candidates with a significance that exceeds 5 standard deviations, and confirms earlier observations of this decay. The measured mass of the Bc meson is 6300+/-14(stat)+/-5(syst) MeV/c2.
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Zanetto U, Dong H, Huang Y, Zhang K, Narbaitz M, Sapia S, Kostopoulos I, Liu H, Du MQ, Bacon CM. Mantle cell lymphoma with aberrant expression of CD10. Histopathology 2008; 53:20-9. [DOI: 10.1111/j.1365-2559.2008.03060.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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