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Oliveira N, Cañellas I, Fuertes A, Pascual S, González I, Montes F, Sixto H. Beyond biomass production: Enhancing biodiversity while capturing carbon in short rotation coppice poplar plantations. Sci Total Environ 2024; 933:172932. [PMID: 38703860 DOI: 10.1016/j.scitotenv.2024.172932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 04/06/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Biodiversity is essential for the functioning of ecosystems and the provision of services. In recent years, the role of plantations in mitigating climate change through carbon sequestration has been highlighted. In the Mediterranean area, high-density poplar plantations in short-rotation with resprouting management (SRC) have been established for biomass purposes on mostly irrigated agricultural land, coexisting with rainfed and irrigated agricultural crops. This study aims to assess the contribution of these plantations to this type of agroforest ecosystem in terms of biodiversity. For this purpose, both flora and fauna diversity were evaluated both within and outside of the plantation. Additionally, the accumulated carbon in the biomass, as well as in the accompanying vegetation within the plantation, was assessed. Different indices were used to evaluate both the intrinsic diversity of the forest plantation and the degree of substitution and complementarity between the different communities of the landscape. Our findings reveal distinct biodiversity patterns in the land-use scenarios sampled. Specifically, we observed significantly higher flora-species richness in SRC plantations than in the adjacent agricultural land, whereas fauna richness showed a similar but slightly higher level in the forested area. A moderate level of complementarity between land uses was found for insects and mammals (around 45 %), contrasting with high complementarity for birds (87 %) and flora (90 %). This suggests substantial turnover and replacement among these ecological environments. Our results indicate that a second rotation (4 year) plantation could accumulate a total of 61.6 Mg C ha-1, and even though adventitious flora represents <2 % of the total carbon accumulated, its importance in providing ecosystem services is considerable. Hence, these findings evidence the fact that SRC poplar plantations can enhance biodiversity in Mediterranean agroforest ecosystems and actively contribute to various provisioning ecosystem services, including carbon sequestration, reflecting a multi-objective approach that extends beyond biomass production.
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Affiliation(s)
- N Oliveira
- Institute of Forest Sciences (INIA, CSIC), Crta. de A Coruña km 7.5, 28040 Madrid, Spain.
| | - I Cañellas
- Institute of Forest Sciences (INIA, CSIC), Crta. de A Coruña km 7.5, 28040 Madrid, Spain
| | - A Fuertes
- Institute of Forest Sciences (INIA, CSIC), Crta. de A Coruña km 7.5, 28040 Madrid, Spain
| | - S Pascual
- Entomology Group, Plant Protection Department, INIA, CSIC, Ctra. de A Coruña km 7.5, 28040 Madrid, Spain
| | - I González
- Institute of Forest Sciences (INIA, CSIC), Crta. de A Coruña km 7.5, 28040 Madrid, Spain
| | - F Montes
- Institute of Forest Sciences (INIA, CSIC), Crta. de A Coruña km 7.5, 28040 Madrid, Spain
| | - H Sixto
- Institute of Forest Sciences (INIA, CSIC), Crta. de A Coruña km 7.5, 28040 Madrid, Spain
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Fuertes A, Oliveira N, Cañellas I, Sixto H, Rodríguez-Soalleiro R, Hanewinkel M, Sperlich D. Assessing the potential of poplar short rotation plantations to contribute to a low-carbon bioeconomy under water-limited conditions. J Environ Manage 2023; 347:119062. [PMID: 37783085 DOI: 10.1016/j.jenvman.2023.119062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/13/2023] [Accepted: 08/30/2023] [Indexed: 10/04/2023]
Abstract
Poplar short rotation coppice (SRC) systems are important for biomass production and for short-to medium-term carbon (C) sequestration, contributing to a low-carbon bioeconomy and thus helping to mitigate global warming. The productivity and profitability of these plantations are, however, challenged under restrictive irrigation associated with climate change. This study compares the above- and below-ground C sequestration potential and economic viability of a 12-year plantation cycle (4 rotations of 3 years each) under Mediterranean conditions with optimum irrigation (T1) and 50% irrigation reduction (T2), analysing other promising biomass uses in the form of bioproducts. A total of 138 trees of the highly productive hybrid ('AF2') in a SRC-trial were sampled monthly (first rotation). Additionally, data from an extensive poplar plantation network (30 sites) was used to complete data for the plantation cycle. The average C content for above- and below-ground biomass was 17.04 Mg C ha-1 yr-1 (T1), falling by 24% in T2. The net present value (NPV) in T1 (6461 € ha-1) was 52% lower under T2 conditions. Extra payments for C sequestration increased the NPV to 8023 for T1 and 4331 € ha-1 for T2. Roots represent an important C storage in the soil, accumulating 29.9 Mg C ha-1 (T1) and 22.8 Mg C ha-1 (T2) by the end of the cycle in our study. The mitigation potential is strongly fortified when the share of bioproducts in biomass end-use increases. Assuming a distribution of 50% bioenergy and 50% bioproducts, emission were reduced between -114 Mg CO2eq ha-1 (T1) and -88 Mg CO2eq ha-1 (T2) compared to BAU until end of the century. This scenario plays a crucial sink-effect role by storing C contained in biomass, which is not immediately released into the atmosphere.
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Affiliation(s)
- A Fuertes
- Institute of Forest Science (INIA-CSIC), Crta. De La Coruña km 7.5, E-28040 Madrid, Spain; Sustainable Forest Management Group, University of Santiago De Compostela (USC), C/Benigno Ledo s/n, E-27002 Lugo, Spain.
| | - N Oliveira
- Institute of Forest Science (INIA-CSIC), Crta. De La Coruña km 7.5, E-28040 Madrid, Spain
| | - I Cañellas
- Institute of Forest Science (INIA-CSIC), Crta. De La Coruña km 7.5, E-28040 Madrid, Spain
| | - H Sixto
- Institute of Forest Science (INIA-CSIC), Crta. De La Coruña km 7.5, E-28040 Madrid, Spain
| | - R Rodríguez-Soalleiro
- Sustainable Forest Management Group, University of Santiago De Compostela (USC), C/Benigno Ledo s/n, E-27002 Lugo, Spain
| | - M Hanewinkel
- Chair of Forestry Economics and Forest Planning, University of Freiburg, Tennenbacherstr. 4, 79106 Freiburg, Germany
| | - D Sperlich
- Chair of Forestry Economics and Forest Planning, University of Freiburg, Tennenbacherstr. 4, 79106 Freiburg, Germany
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Moll-Bernardes R, Fortier SC, Sousa AS, Lopes RD, Vera N, Conde L, Feldman A, Arruda G, Cabral-Castro M, Albuquerque DC, Paula TC, Furquim T, Loures VA, Giusti K, Oliveira N, Macedo A, Barros e Silva P, De Luca F, Kotsugai M, Domiciano R, Silva FA, Santos MF, Souza OF, Bozza FA, Luiz RR, Medei E. NKG2A Expression among CD8 Cells Is Associated with COVID-19 Progression in Hypertensive Patients: Insights from the BRACE CORONA Randomized Trial. J Clin Med 2022; 11:jcm11133713. [PMID: 35806995 PMCID: PMC9267446 DOI: 10.3390/jcm11133713] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/23/2022] [Accepted: 06/23/2022] [Indexed: 12/15/2022] Open
Abstract
Cardiovascular comorbidities and immune-response dysregulation are associated with COVID-19 severity. We aimed to explore the key immune cell profile and understand its association with disease progression in 156 patients with hypertension that were hospitalized due to COVID-19. The primary outcome was progression to severe disease. The probability of progression to severe disease was estimated using a logistic regression model that included clinical variables and immune cell subsets associated with the primary outcome. Obesity; diabetes; oxygen saturation; lung involvement on computed tomography (CT) examination; the C-reactive protein concentration; total lymphocyte count; proportions of CD4+ and CD8+ T cells; CD4/CD8 ratio; CD8+ HLA-DR MFI; and CD8+ NKG2A MFI on admission were all associated with progression to severe COVID-19. This study demonstrated that increased CD8+ NKG2A MFI at hospital admission, in combination with some clinical variables, is associated with a high risk of COVID-19 progression in hypertensive patients. These findings reinforce the hypothesis of the functional exhaustion of T cells with the increased expression of NKG2A in patients with severe COVID-19, elucidating how severe acute respiratory syndrome coronavirus 2 infection may break down the innate antiviral immune response at an early stage of the disease, with future potential therapeutic implications.
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Affiliation(s)
- Renata Moll-Bernardes
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
| | - Sérgio C. Fortier
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Pathological Anatomy Laboratory, Rede D’Or São Luiz, São Paulo 04321-120, Brazil
| | - Andréa S. Sousa
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro 21040-360, Brazil
| | - Renato D. Lopes
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Duke Clinical Research Institute, Duke University Medical Center, Durham, NC 27710, USA
- Brazilian Clinical Research Institute, São Paulo 01404-000, Brazil;
| | - Narendra Vera
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-170, Brazil; (N.V.); (L.C.)
| | - Luciana Conde
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-170, Brazil; (N.V.); (L.C.)
| | - André Feldman
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Anália Franco Hospital, São Paulo 03313-001, Brazil
| | - Guilherme Arruda
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz São Caetano Hospital, São Caetano do Sul 09531-205, Brazil
| | - Mauro Cabral-Castro
- Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Denílson C. Albuquerque
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Cardiology Department, Rio de Janeiro State University, Rio de Janeiro 20551-030, Brazil
| | - Thiago C. Paula
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Jabaquara Hospital, São Paulo 04321-120, Brazil
| | - Thyago Furquim
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Sino Brasileiro Hospital, Osasco 06016-050, Brazil
| | - Vitor A. Loures
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Anália Franco Hospital, São Paulo 03313-001, Brazil
| | - Karla Giusti
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Villa Lobos Hospital, São Paulo 03184-020, Brazil
| | - Nathália Oliveira
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Villa Lobos Hospital, São Paulo 03184-020, Brazil
| | - Ariane Macedo
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Jabaquara Hospital, São Paulo 04321-120, Brazil
- Santa Casa of São Paulo, São Paulo 01221-010, Brazil
| | | | - Fábio De Luca
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Morumbi Hospital, São Paulo 05605-050, Brazil
| | - Marisol Kotsugai
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Morumbi Hospital, São Paulo 05605-050, Brazil
| | - Rafael Domiciano
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- São Luiz Anália Franco Hospital, São Paulo 03313-001, Brazil
| | - Flávia A. Silva
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Pathological Anatomy Laboratory, Rede D’Or São Luiz, São Paulo 04321-120, Brazil
| | - Mayara F. Santos
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
| | - Olga F. Souza
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Copa Star Hospital, Rio de Janeiro 22031-012, Brazil
| | - Fernando A. Bozza
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro 21040-360, Brazil
| | - Ronir R. Luiz
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Public Health Studies Institute—IESC, Federal University of Rio de Janeiro, Rio de Janeiro 21941-592, Brazil
| | - Emiliano Medei
- D’Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; (R.M.-B.); (S.C.F.); (A.S.S.); (R.D.L.); (A.F.); (G.A.); (D.C.A.); (T.C.P.); (T.F.); (V.A.L.); (K.G.); (N.O.); (A.M.); (F.D.L.); (M.K.); (R.D.); (F.A.S.); (M.F.S.); (O.F.S.); (F.A.B.); (R.R.L.)
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-170, Brazil; (N.V.); (L.C.)
- National Center for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- Correspondence: ; Tel.: +55-21-3938-0370
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Pontes R, Junqueira F, Paiva M, Ferreira M, Oliveira N, Costa V. Intracranial subdural haematoma following dural puncture accidental: clinical case. Rev Esp Anestesiol Reanim (Engl Ed) 2021; 68:103-106. [PMID: 32854941 DOI: 10.1016/j.redar.2020.05.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
Intracranial subdural hematoma is a rare, but potentially lethal complication of neuraxial procedures. Considering the high frequency of neuraxial techniques in the obstetric population, parturients are more susceptible to this fearful complication. The diagnosis is often masked and delayed because it shares similar clinical characteristics with posdural puncture headache, with headache being the most common symptom. This case report describes a timely diagnosis and successful management of an intracranial subdural hematoma, after unintentional dural puncture during labour epidural analgesia. Postpartum headache following epidural analgesia, remains a clinical challenge for the caring team, requiring a close follow-up and awareness for non-benign causes that require prompt management, avoiding devastating consequences.
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Affiliation(s)
- R Pontes
- Departamento de Anestesiología, Centro Hospitalario Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal.
| | - F Junqueira
- Departamento de Anestesiología, Centro Hospitalario Universitario de Lisboa Central, Lisboa, Portugal
| | - M Paiva
- Departamento de Anestesiología, Centro Hospitalario Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - M Ferreira
- Departamento de Anestesiología, Centro Hospitalario Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - N Oliveira
- Departamento de Anestesiología, Centro Hospitalario Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - V Costa
- Departamento de Anestesiología, Centro Hospitalario Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
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Oliveira N, Licardie E, Alarcón I, Morales-Conde S. Laparoscopic colonic resection of the splenic flexure using indocyanine green fluorescence for lymphatic mapping - a video vignette. Colorectal Dis 2020; 22:1797. [PMID: 32584512 DOI: 10.1111/codi.15217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/09/2020] [Indexed: 02/08/2023]
Affiliation(s)
- N Oliveira
- Unit of Innovation in Minimally Invasive Surgery, Department of General and Digestive Surgery, University Hospital 'Virgen del Rocio', University of Sevilla, Sevilla, Spain.,Department of General Surgery, Hospital 'Vila Franca de Xira', Lisboa, Portugal
| | - E Licardie
- Unit of General and Digestive Surgery, Hospital Quironsalud Sagrado Corazón, Sevilla, Spain
| | - I Alarcón
- Unit of Innovation in Minimally Invasive Surgery, Department of General and Digestive Surgery, University Hospital 'Virgen del Rocio', University of Sevilla, Sevilla, Spain
| | - S Morales-Conde
- Unit of Innovation in Minimally Invasive Surgery, Department of General and Digestive Surgery, University Hospital 'Virgen del Rocio', University of Sevilla, Sevilla, Spain.,Unit of General and Digestive Surgery, Hospital Quironsalud Sagrado Corazón, Sevilla, Spain
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Bignoto T, Le Bihan D, Souza A, Oliveira N, Nascimento B, Sousa P, Santos M, Simonato M, Barretto R, Ramos A, Siqueira D, Sousa A, Abizaid A. Long-term analysis of pulmonary hypertension and tricuspid regurgitation after transcatheter aortic valve replacement. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Transcatheter aortic valve replacement (TAVR) is increasingly utilized in treatment of aortic stenosis (AS). AS is commonly associated to pulmonary hypertension (PH) and tricuspid regurgitation (TR). We aimed to evaluate the long-term post-TAVR course of PH and TR.
Methods
Patients undergoing TAVR were screened for 24-month echocardiographic data on PH and TR. All echocardiograms were performed by a single team. Patients were divided in groups according to TR and PH (pulmonary systolic pressure ≥ or <45 mmHg) grading at 24 months with follow-up of up to 96 months. Standardized clinical outcomes and survival were compared.
Results
156 and 151 patients were selected for PH and TR follow-up, respectively. Mean follow-up was 42.23±17.53 months and 42.60±17.67 months for PH and TR groups. Maximum follow-up was 96 months. PH was reduced post-TAVR (32.7% pre-TAVR vs. 20.5% post-TAVR, p<0.001), but no significant difference in TR was found (11.9% pre-TAVR vs. 10.6% post-TAVR). Increased left atrial (LA) diameter (p=0.002) was associated to maintenance PH. Moreover, increased LA diameter (p=0.015) and increased EuroSCORE II (p=0.041) were correlated to new onset PH. On a multivariable Cox regression model, new onset PH (HR 6.17, 95% CI 1.71–22.29, p=0.005), diastolic dysfunction type II or III (HR 1.06, 95% CI 1.06–1.11, p=0.036) and LA diameter (HR 1.11, 95% CI 1.02–1.21, p=0.02) were independent predictors of long-term mortality.
Conclusions
TAVR was able to reduce the severity of PH, but not TR, in this cohort. Additionally, long-term survival was affected by PH, diastolic dysfunction and LA sizing.
Kaplan-Meier survival curve
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Bignoto
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - D Le Bihan
- Institute Dante Pazzanese of Cardiology, Echocardiography, Sao Paulo, Brazil
| | - A.C Souza
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - N Oliveira
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - B.M.O Nascimento
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - P.C.C Sousa
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - M.F.M Santos
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - M Simonato
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - R.B.M Barretto
- Institute Dante Pazzanese of Cardiology, Echocardiography, Sao Paulo, Brazil
| | - A.I.O Ramos
- Institute Dante Pazzanese of Cardiology, Valvopathy, Sao Paulo, Brazil
| | - D.A.A Siqueira
- Institute Dante Pazzanese of Cardiology, Intervention, Sao Paulo, Brazil
| | - A.G.M.R Sousa
- Institute Dante Pazzanese of Cardiology, Intervention, Sao Paulo, Brazil
| | - A Abizaid
- Institute Dante Pazzanese of Cardiology, Intervention, Sao Paulo, Brazil
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7
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Azevedo R, Oliveira N, Maia C, Verde I. Effects of di(2-etilhexil) phthalate on human umbilical artery. Chemosphere 2019; 228:278-286. [PMID: 31035166 DOI: 10.1016/j.chemosphere.2019.04.128] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/15/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
Di(2-etilhexil) phthalate (DEHP) is a compound used in plastic materials, which has endocrine disrupting properties. The human DEHP exposure depend on the use of plastics in toys, medical devices and food and beverage containers. The DEHP effects were studied in some physiological systems; nevertheless, the actions in human arteries were never described. We analysed the DEHP effect on endothelium denuded human umbilical artery (HUA), an important artery to ensure gases and nutrients exchange with fetus. We assessed DEHP short-term effects on contractility, occurring few minutes after DEHP is in contact with HUA in the organ bath receptacles. The long-term effects on HUA, observed after 24 h in presence of DEHP, were assessed in the organ bath system, and also through the analysis of receptors expression (5-HT2A and H1) and of cellular viability, by using HUA smooth muscle cells. DEHP (1 nM-100 μM) induced a short-term relaxing effect on HUA contracted by 5-HT, histamine or KCl. DEHP long-term exposure of arteries (1 nM, 10 μM and 100 μM) reduced its own relaxant effect on HUA contracted by 5-HT and histamine and, precisely, 24 h exposure to DEHP 1 nM reverted the relaxant effect on 5-HT contractility. Long-term exposure at more than 10 nM of DEHP decreased 5HT2A receptors expression. In conclusion, DEHP short-term exposition elicit vasodilation of HUA contracted by different agents. DEHP long-term exposition reduced the expression of 5HT2A receptors. The DEHP long-term exposition decrease the short-term relaxant effect and, at low concentrations can increase the contractile effect of 5-HT.
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Affiliation(s)
- R Azevedo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - N Oliveira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - C Maia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - I Verde
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal.
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8
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Frias A, Sim-Sim M, Barros L, Chora A, Oliveira N, Pontes A, Leão R. O16 Knowledge of visitors to Feira S. João about HIV-AIDS. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz096.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Frias
- São João de Deus School of Nursing, University of Évora, Évora, PORTUGAL
| | - M Sim-Sim
- São João de Deus School of Nursing, University of Évora, Évora, PORTUGAL
| | - L Barros
- São João de Deus School of Nursing, University of Évora, Évora, PORTUGAL
| | - A Chora
- São João de Deus School of Nursing, University of Évora, Évora, PORTUGAL
| | - N Oliveira
- Counseling and Early Detection of HIV/AIDS Center (CAD), Évora, PORTUGAL
| | - A Pontes
- Care Unit in the Community, Évora, PORTUGAL
| | - R Leão
- Unity Public Health, Évora, PORTUGAL
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9
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Oliveira N, Samagaio A, Monteiro A. Investigating the influence of the Daylight Saving Time on the population and energy consumption. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz034.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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10
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Cardoso PG, Rodrigues D, Madureira TV, Oliveira N, Rocha MJ, Rocha E. Warming modulates the effects of the endocrine disruptor progestin levonorgestrel on the zebrafish fitness, ovary maturation kinetics and reproduction success. Environ Pollut 2017; 229:300-311. [PMID: 28601762 DOI: 10.1016/j.envpol.2017.05.090] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 05/29/2017] [Accepted: 05/30/2017] [Indexed: 06/07/2023]
Abstract
Interactive effects between multiple stressors, namely climate drivers (e.g., temperature) and chemical pollution (e.g., endocrine disruptors) are poorly studied. Here, it was for the first time evaluated the combinatory effects of temperature and a synthetic progestin, levonorgestrel (LNG), on the fitness and reproductive-related endpoints of zebrafish (Danio rerio). A multi-factorial design was implemented by manipulating both temperature [setting as baseline an ambient temperature of 27 °C, against warming (+3 °C)] and LNG levels (10 ngL-1 and 1000 ngL-1). Groups of males and females were exposed sub-acutely, for 21-days. Increased temperature caused an overall decrease in the females' gonadosomatic index (GSI), during the pre-reproduction phase, LNG did not affect GSI. In addition, fecundity (number of ovulated eggs) was negatively affected by both temperature and LNG, being the effect of the latter more intense. Fish exposed to the highest LNG concentration (at both temperatures) did not reproduce, but also in those exposed to the lowest dose of progestin at a higher temperature, a complete reproductive failure occurred. These results reflect what was observed in the stereological analysis of the ovary maturation stages prior to reproduction. Accordingly, the higher the LNG concentration, the lower the degree of maturation of the ovary. This was exacerbated by the higher temperature. As to embryonated eggs, they hatched significantly faster at higher temperatures, but exposure to 10 ngL-1 of LNG (at 27 °C) reduced significantly the hatching rate, comparing to control. Further, the recrudescence of the ovary 48 h after spawning seems to be not affected by both stressors. Our data suggest that in a future scenario of global warming and synthetic hormones exposure, the reproduction of fish species, such as the zebrafish, can be endangered, which can put at risk their success, and consequently affect the structure and functioning of associated aquatic ecosystems.
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Affiliation(s)
- P G Cardoso
- Group of Histomorphology, Physiopathology and Applied Toxicology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal.
| | - D Rodrigues
- Group of Histomorphology, Physiopathology and Applied Toxicology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - T V Madureira
- Group of Histomorphology, Physiopathology and Applied Toxicology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - N Oliveira
- Group of Histomorphology, Physiopathology and Applied Toxicology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - M J Rocha
- Group of Histomorphology, Physiopathology and Applied Toxicology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - E Rocha
- Group of Histomorphology, Physiopathology and Applied Toxicology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal; Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
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11
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Paskulin L, Aires M, Fengler F, Mocellin D, Oliveira N, Bierhals C, Rosset I, Morais E. ADULT CHILDREN’S ATTITUDES, BEHAVIORS, AND WELL-BEING. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L.M. Paskulin
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - M. Aires
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- URI, Frederico Westphalen, RS, Brazil
| | - F. Fengler
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - D. Mocellin
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - N. Oliveira
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - C. Bierhals
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - I. Rosset
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - E. Morais
- School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
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12
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Oliveira N, Pontes AJ. Laser Welding Process in PP Molding Parts: Evaluation of Seam Performance. INT POLYM PROC 2016. [DOI: 10.3139/217.3235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
New welding technologies have been implemented in the polymer processing industry in the past few years. Additionally, the most used polymer in complex products is polypropylene. This material can also be mixed with several additives, namely glass fiber, carbon nanotubes, etc. This compatibility with different additives allows products with characteristics that range from impact absorption to electrical conductivity. When it is necessary to join components in PP, they can be welded by hot plate, ultrasonic or laser welding. The present research aims at studying the influence of variables capable of influencing the final quality of the seam, namely those related to injection molding, such as mold temperature and cooling time, laser welding variables and materials, and how laser welding interacts with PP. The results showed that the most influential variables were mold temperature, laser velocity and laser diameter. The seams were analyzed using optical microscopy. They showed perfect contact between the components, despite the high standard variation present in the mechanical tests.
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Affiliation(s)
- N. Oliveira
- Institute for Polymers and Composites , IPC/I3 N, Department of Polymer Engineering, University of Minho, Guimarães , Portugal
| | - A. J. Pontes
- Institute for Polymers and Composites , IPC/I3 N, Department of Polymer Engineering, University of Minho, Guimarães , Portugal
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13
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Oliveira N, Mota AM, Matela N, Janeiro L, Almeida P. Dynamic relaxation in algebraic reconstruction technique (ART) for breast tomosynthesis imaging. Comput Methods Programs Biomed 2016; 132:189-196. [PMID: 27282238 DOI: 10.1016/j.cmpb.2016.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 02/05/2016] [Accepted: 05/04/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND AND OBJECTIVES A major challenge in Digital Breast Tomosynthesis (DBT) is handling image noise since the 3D reconstructed images are obtained from low dose projections and limited angular range. The use of the iterative reconstruction algorithm Algebraic Reconstruction Technique (ART) in clinical context depends on two key factors: the number of iterations needed (time consuming) and the image noise after iterations. Both factors depend highly on a relaxation coefficient (λ), which may give rise to slow or noisy reconstructions, when a single λ value is considered for the entire iterative process. The aim of this work is to present a new implementation for the ART that takes into account a dynamic mode to calculate λ in DBT image reconstruction. METHODS A set of initial reconstructions of real phantom data was done using constant λ values. The results were used to choose, for each iteration, the suitable λ value, taking into account the image noise level and the convergence speed. A methodology to optimize λ automatically during the image reconstruction was proposed. RESULTS Results showed we can dynamically choose λ values in such a way that the time needed to reconstruct the images can be significantly reduced (up to 70%) while achieving similar image quality. These results were confirmed with one clinical dataset. CONCLUSIONS With simple methodology we were able to dynamically choose λ in DBT image reconstruction with ART, allowing a shorter image reconstruction time without increasing image noise.
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Affiliation(s)
- N Oliveira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - A M Mota
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - N Matela
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - L Janeiro
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal; Escola Superior de Saúde da Cruz Vermelha Portuguesa, Avenida de Ceuta, Edifício UrbiCeuta, 6°, 1300-125 Lisboa, Portugal
| | - P Almeida
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal
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14
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Matos-Costa J, Almeida I, Santos L, Delgado Alves J, Pinheiro S, Santos M, Dias C, Serradeiro E, Alves G, Vedes J, Brito H, Ferreira P, Oliveira N, Garcia J, Pinelo E, Ferreira A, Marinho A. AB0605 ridai.org/ssc: The Portuguese National Systemic Sclerosis Registry – Focus on Quality of Life and Data Conformity. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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15
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Gabbay-Benziv R, Oliveira N, Baschat AA. Optimal first trimester preeclampsia prediction: a comparison of multimarker algorithm, risk profiles and their sequential application. Prenat Diagn 2015; 36:34-9. [DOI: 10.1002/pd.4707] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 10/04/2015] [Accepted: 10/05/2015] [Indexed: 12/16/2022]
Affiliation(s)
- R. Gabbay-Benziv
- Helen Schneider Hospital for Women, Rabin Medical Center, PetachTikva; Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
| | - N. Oliveira
- Department of Obstetrics and Gynecology; Maternidade Dr. Alfredo da Costa; Lisbon Portugal
| | - A. A. Baschat
- Department of Gynecology and Obstetrics; Johns Hopkins School of Medicine; Baltimore MD United States
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16
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Cipriano M, Freyer N, Knoespel F, Camões S, Santos J, Cruz H, Oliveira N, Castro M, Zeilinger K, Miranda J. Improvement of mesenchymal stem cell differentiation into hepatocyte-like cells using 3D culture models: Potential in vitro alternatives for drug metabolism studies. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Oliveira N, Vasconcellos L, canedo N, Esperanca J. Intracranial hypertension syndrome and multiple cranial neuropathy related to atypical radiologic presentation of an intradural chordoma. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Tedesco-Silva H, Felipe C, Ferreira A, Cristelli M, Oliveira N, Sandes-Freitas T, Aguiar W, Campos E, Gerbase-DeLima M, Franco M, Medina-Pestana J. Reduced Incidence of Cytomegalovirus Infection in Kidney Transplant Recipients Receiving Everolimus and Reduced Tacrolimus Doses. Am J Transplant 2015; 15:2655-64. [PMID: 25988935 DOI: 10.1111/ajt.13327] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/05/2015] [Accepted: 03/25/2015] [Indexed: 01/25/2023]
Abstract
This study compared the incidence of CMV infection/disease in de novo kidney transplant recipients receiving everolimus or mycophenolate and no CMV pharmacological prophylaxis. We randomized 288 patients to receive a single 3 mg/kg dose of antithymocyte globulin, tacrolimus, everolimus, and prednisone (r-ATG/EVR, n = 85); basiliximab, tacrolimus, everolimus, and prednisone (BAS/EVR, n = 102); or basiliximab, tacrolimus, mycophenolate, and prednisone (BAS/MPS, n = 101). The primary end-point was the incidence of first CMV infection/disease in the intention-to-treat population at 12 months. Patients treated with r-ATG/EVR showed a 90% proportional reduction (4.7% vs. 37.6%, HR 0.10, 95% CI 0.037-0.29; p < 0.001), while those treated with BAS/EVR showed a 75% proportional reduction (10.8% vs. 37.6%, HR 0.25, 95% CI 0.13-0.48; p < 0.001) in the incidence of CMV infection/disease compared to BAS/MPS. There were no differences in the incidence of acute rejection (9.4 vs. 18.6 vs. 15.8%, p = 0.403), wound-healing complications, delayed graft function, and proteinuria. Mean estimated glomerular filtration rate was lower in BAS/EVR (65.7 ± 21.8 vs. 60.6 ± 20.9 vs. 69.5 ± 21.5 ml/min, p = 0.021). In de novo kidney transplant recipients receiving no pharmacological CMV prophylaxis, reduced-dose tacrolimus and everolimus was associated with a significant reduction in the incidence of CMV infection/disease compared to standard tacrolimus dose and mycophenolate (ClinicalTrials.gov NCT01354301).
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Affiliation(s)
- H Tedesco-Silva
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - C Felipe
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - A Ferreira
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - M Cristelli
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - N Oliveira
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - T Sandes-Freitas
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - W Aguiar
- Urology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
| | - E Campos
- Department of Immunogenetic, AFIP São Paulo, São Paulo, Brazil
| | | | - M Franco
- Department of Pathology, UNIFESP, São Paulo, Brazil
| | - J Medina-Pestana
- Nephrology Division, Hospital do Rim - UNIFESP, São Paulo, Brazil
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19
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Marques T, Ribeiro A, Di Maria S, Belchior A, Cardoso J, Matela N, Oliveira N, Janeiro L, Almeida P, Vaz P. Effect of the glandular composition on digital breast tomosynthesis image quality and dose optimisation. Radiat Prot Dosimetry 2015; 165:337-341. [PMID: 25836692 DOI: 10.1093/rpd/ncv124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In the image quality assessment for digital breast tomosynthesis (DBT), a breast phantom with an average percentage of 50 % glandular tissue is seldom used, which may not be representative of the breast tissue composition of the women undergoing such examination. This work aims at studying the effect of the glandular composition of the breast on the image quality taking into consideration different sizes of lesions. Monte Carlo simulations were performed using the state-of-the-art computer program PENELOPE to validate the image acquisition system of the DBT equipment as well as to calculate the mean glandular dose for each projection image and for different breast compositions. The integrated PENELOPE imaging tool (PenEasy) was used to calculate, in mammography, for each clinical detection task the X-ray energy that maximises the figure of merit. All the 2D cranial-caudal projections for DBT were simulated and then underwent the reconstruction process applying the Simultaneous Algebraic Reconstruction Technique. Finally, through signal-to-noise ratio analysis, the image quality in DBT was assessed.
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Affiliation(s)
- T Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
| | - A Ribeiro
- Escola Superior de Tecnologias de Saúde de Lisboa (ESTESL), Lisboa, Portugal
| | - S Di Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
| | - A Belchior
- IST-ID, Associação do Instituto Superior Técnico para a Investigação e Desenvolvimento, Lisboa, Portugal
| | - J Cardoso
- Laboratório de Metrologia, IST/CTN, Universidade Técnica de Lisboa, Bobadela LRS, Portugal
| | - N Matela
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - N Oliveira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - L Janeiro
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal Escola Superior de Saúde da Cruz Vermelha, Lisboa, Portugal
| | - P Almeida
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - P Vaz
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
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Correia L, Martins I, Oliveira N, Antunes I, Palma F, Alves MJ. Contraceptive choices pre and post pregnancy in adolescence. J Pediatr Adolesc Gynecol 2015; 28:24-28. [PMID: 25444052 DOI: 10.1016/j.jpag.2014.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 02/03/2014] [Accepted: 02/10/2014] [Indexed: 10/24/2022]
Abstract
STUDY OBJECTIVE The main aim of this study is to evaluate the impact of adolescent pregnancy in the future contraceptive choices. A secondary aim is to verify whether these choices differ from those made after an abortion. DESIGN Retrospective study. SETTING Adolescent Unit of a tertiary care center. PARTICIPANTS 212 pregnant teenagers. INTERVENTIONS Medical records review. MAIN OUTCOME MEASURES Intended pregnancy rate and contraceptive methods used before and after pregnancy. For contraceptive choices after pregnancy we considered: Group 1--teenagers who continued their pregnancy to delivery (n = 106) and Group 2--the same number of adolescents who chose to terminate their pregnancy. RESULTS The intended pregnancy rate was 14.2%. Prior to a pregnancy continued to delivery, the most widely used contraceptive method was the male condom (50.9%), followed by oral combined contraceptives (28.3%); 18.9% of adolescents were not using any contraceptive method. After pregnancy, contraceptive implant was chosen by 70.8% of subjects (P < .001) and the oral combined contraceptives remained the second most frequent option (17.9%, P = .058). Comparing these results with Group 2, we found that the outcome of the pregnancy was the main factor in the choices that were made. Thus, after a pregnancy continued to delivery, adolescents prefer the use of LARC [78.4% vs 40.5%, OR: 5,958 - 95% (2.914-12.181), P < .001)], especially contraceptive implants [70.8% vs 38.7%, OR: 4.371 - 95% (2.224-8.591), P < .001], to oral combined contraceptives [17.9% vs 57.5%, OR: 0.118 - 95% CI (0.054-0.258), P < .001]. CONCLUSION Adolescent pregnancy and its outcome constitute a factor of change in future contraceptive choice.
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Affiliation(s)
- L Correia
- Adolescence Unit of Maternity Dr. Alfredo da Costa - Centro Hospitalar de Lisboa Central, Lisbon, Portugal.
| | - I Martins
- Adolescence Unit of Maternity Dr. Alfredo da Costa - Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - N Oliveira
- Adolescence Unit of Maternity Dr. Alfredo da Costa - Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - I Antunes
- Adolescence Unit of Maternity Dr. Alfredo da Costa - Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - F Palma
- Adolescence Unit of Maternity Dr. Alfredo da Costa - Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - M J Alves
- Adolescence Unit of Maternity Dr. Alfredo da Costa - Centro Hospitalar de Lisboa Central, Lisbon, Portugal
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Baptista M, Di Maria S, Oliveira N, Matela N, Janeiro L, Almeida P, Vaz P. Image quality and dose assessment in digital breast tomosynthesis: A Monte Carlo study. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2013.12.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Oliveira N, Magder LS, Blitzer MG, Baschat AA. First-trimester prediction of pre-eclampsia: external validity of algorithms in a prospectively enrolled cohort. Ultrasound Obstet Gynecol 2014; 44:279-85. [PMID: 24913190 DOI: 10.1002/uog.13435] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/22/2014] [Accepted: 05/23/2014] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To evaluate the performance of published first-trimester prediction algorithms for pre-eclampsia (PE) in a prospectively enrolled cohort of women. METHOD A MEDLINE search identified first-trimester screening-prediction algorithms for early-onset (requiring delivery < 34 weeks) and late-onset (requiring delivery ≥ 34 weeks) PE. Maternal variables, ultrasound parameters and biomarkers were determined prospectively in singleton pregnancies enrolled between 9 and 14 weeks. Prediction algorithms were applied to this population to calculate predicted probabilities for PE. The performance of the prediction algorithms was compared with that in the original publication and evaluated for factors explaining differences in prediction. RESULTS Six early and two late PE prediction algorithms were applicable to 871-2962 women, depending on the variables required. The prevalence of early PE was 1.0-1.2% and of late PE was 4.1-5.0% in these patient subsets. One early PE prediction algorithm performed better than in the original publication (80% detection rate (DR) of early PE for 10% false-positive rate (FPR)); the remaining five prediction algorithms underperformed (29-53% DR). Prediction algorithms for late PE also underperformed (18-31% DR, 10% FPR). Applying the screening cut-offs based on the highest Youden index probability scores correctly detected 40-80% of women developing early PE and 71-82% who developed late PE. Exclusion of patients on first-trimester aspirin resulted in DRs of 40-83% and 65-82% for early and late PE, respectively. CONCLUSION First-trimester prediction algorithms for PE share a high negative predictive value if applied to an external population but underperform in their ability to correctly identify women who develop PE. Further research is required to determine the factors responsible for the suboptimal external validity.
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Affiliation(s)
- N Oliveira
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
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Oliveira N, Doyle LE, Atlas RO, Jenkins CB, Blitzer MG, Baschat AA. External validity of first-trimester algorithms in the prediction of pre-eclampsia disease severity. Ultrasound Obstet Gynecol 2014; 44:286-292. [PMID: 24912952 DOI: 10.1002/uog.13433] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/22/2014] [Accepted: 05/30/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To compare disease features in women with pre-eclampsia between those who are correctly identified (true positive) and those who are missed (false negative) when applying first-trimester prediction algorithms for pre-eclampsia to a prospectively enrolled population. METHOD Six first-trimester early (requiring delivery < 34 weeks' gestation) pre-eclampsia algorithms were applied to a prospective cohort of singleton pregnancies enrolled at first-trimester screening. Maternal outcomes, neonatal outcomes and severity parameters for pre-eclampsia were compared between true-positive and false-negative predictions. RESULTS Twenty of 2446 (0.8%) women developed early pre-eclampsia, with 65% of these developing severe features and 20% HELLP syndrome. At enrollment, true-positive cases were more likely to be African-American and chronically hypertensive, while false-negative cases were more likely to be Caucasian. At delivery, true-positive cases were more likely to have pre-eclampsia superimposed on hypertension, severely elevated blood pressure and creatinine level > 1.1 mg/dL. False-negative cases were more likely to have HELLP syndrome (all P < 0.05). CONCLUSION In an urban population with a high prevalence of chronic hypertension, patients who are correctly identified by first-trimester screening models are more likely to develop pre-eclampsia superimposed on chronic hypertension with severely elevated blood pressure and evidence of renal failure. In contrast, patients who are missed by these algorithms are more likely to have HELLP syndrome. Further research is needed to confirm these findings and the algorithm adjustments that may be necessary to better predict pre-eclampsia phenotypes.
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Affiliation(s)
- N Oliveira
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
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Oliveira N, Abdelhay E, Binato R. 408: AML mesenchymal stem cells signature. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50363-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Oliveira N, Rosa P, Borges L, Dias E, Oliveira F, Cássio I. Treatment of diabetic foot complications with hyperbaric oxygen therapy: a retrospective experience. Foot Ankle Surg 2014; 20:140-3. [PMID: 24796835 DOI: 10.1016/j.fas.2014.02.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/25/2014] [Accepted: 02/14/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this study is to evaluate the role of hyperbaric oxygen in the treatment of diabetic foot ulcers. METHODS We performed a retrospective observational study of all patients with diabetic foot ulcers treated at the Institution's hyperbaric chamber between January 2010 and August 2012. Patient data was obtained upon patient hospital visit and prospective clinical record consultation. RESULTS Twenty-six foot lesions including 13 foot ulcers Wagner grade 2 or greater and 13 amputation stump ulcers were submitted to hyperbaric oxygen therapy between January 2010 and August 2012 in our Institution. Of these, 23 foot lesions completed treatment and complete epithelialization of the primary lesion was achieved in 15 (65%). The mean healing period since the first hyperbaric oxygen therapy session was 16 weeks. Above-ankle amputations were performed in 3 limbs and transmetatarsal amputations in 2 limbs. CONCLUSION Hyperbaric oxygen may be associated with ulcer healing in selected diabetic foot ulcers with impaired cicatrization.
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Affiliation(s)
- N Oliveira
- Department of Angiology and Vascular Surgery, Hospital do Divino Espírito Santo EPE, Ponta Delgada, Portugal.
| | - P Rosa
- Subaquatic and Hyperbaric Medicine Unit, Hospital do Divino Espírito Santo EPE, Ponta Delgada, Portugal
| | - L Borges
- Department of Angiology and Vascular Surgery, Hospital do Divino Espírito Santo EPE, Ponta Delgada, Portugal
| | - E Dias
- Department of Angiology and Vascular Surgery, Hospital do Divino Espírito Santo EPE, Ponta Delgada, Portugal
| | - F Oliveira
- Department of Angiology and Vascular Surgery, Hospital do Divino Espírito Santo EPE, Ponta Delgada, Portugal
| | - I Cássio
- Department of Angiology and Vascular Surgery, Hospital do Divino Espírito Santo EPE, Ponta Delgada, Portugal
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Oliveira N, Bastos Gonçalves F, Ten Raa S, Rouwet E, Hendriks JM, Cássio I, Mota Capitão L, Verhagen H. Do we need long-term follow-up after EVAR and TEVAR or can we simplify surveillance protocols? J Cardiovasc Surg (Torino) 2014; 55:151-158. [PMID: 24796908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Endovascular repair is an increasingly preferred treatment modality for aortic pathology. Concerns regarding durability and postimplant complications have let to recommendations for rigorous surveillance regimens which are not entirely data-driven. Besides the costs of an excessive imaging follow-up protocol, deleterious effects may arise from repeated contrast administration and radiation exposure. Due to improvements in selection, planning and execution, coupled with technical improvements in devices, reported complications following endovascular repair have gradually decreased since the pivotal reports. Although late failure may be multifactorial and therefore not totally preventable with any surveillance regimen, patients may be stratified according to the expected risk (balanced by the potential benefit gained with surveillance) and be offered an individualized surveillance program. In this review, we aimed to describe current strategies for surveillance, modern outcomes after abdominal and thoracic endovascular repair, and proposed risk-adapted strategies for postoperative surveillance.
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Affiliation(s)
- N Oliveira
- Department of Vascular Surgery Erasmus University Medical Centre Rotterdam, The Netherlands -
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Oliveira N, Felipe CR, De Paula MI, Tamashiro EY, Tedesco-Siva H, Medina-Pestana JO. OHP-037 Benefits of clinical research in a single kidney transplant centre. Eur J Hosp Pharm 2014. [DOI: 10.1136/ejhpharm-2013-000436.489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Correia L, Marujo A, Oliveira N, Vasconcelos C, Machado A. M135 EFFECT OF ANTEPARTUM COUNSELING ON POSTPARTUM CONTRACEPTIVE CHOICES. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61329-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Terrien E, Tessier S, Oliveira N, Dalle F, Lilette H, Vabres P, Cristofini C, Clinard F. Dermatophytoses à Trichophyton tonsurans en milieu scolaire, Côte-d’Or, mai 2011. Rev Epidemiol Sante Publique 2012. [DOI: 10.1016/j.respe.2012.06.298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Ribeiro A, Ramalho e Silva F, Fonseca C, Oliveira N, Santos A. P-937 - Borderline Personality Disorder: genetics, neurobiology and development. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)75104-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Carreteiro G, Xavier S, Klut C, Graca J, Gonzaga C, Lima A, Oliveira N, Melo J, Cardoso G. P-1177 - “Porta aberta” - a psychoeducational programme for bipolar disorders’ patients. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)75344-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Lunelli B, Atala D, Oliveira N, Maciel MW, Filho RM. Ethyl lactate production using reactive distillation: experimental and simulation. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.10.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sousa A, Figueiredo P, Oliveira N, Oliveira J, Keskinen KL, Vilas-Boas JP, Fernandes RJ. Comparison Between Swimming VO2peak and VO2max at Different Time Intervals~!2009-07-05~!2009-12-12~!2010-04-15~! ACTA ACUST UNITED AC 2010. [DOI: 10.2174/1875399x01003010022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mesquita J, Matela N, Oliveira N, Martins MV, Almeida P. Choosing the ART relaxation parameter for Clear-PEM 2D image reconstruction. Comput Methods Programs Biomed 2010; 98:183-190. [PMID: 20022658 DOI: 10.1016/j.cmpb.2009.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 10/08/2009] [Accepted: 11/13/2009] [Indexed: 05/28/2023]
Abstract
The Algebraic Reconstruction Technique (ART) is an iterative image reconstruction algorithm. During the development of the Clear-PEM device, a PET scanner designed for the evaluation of breast cancer, multiple tests were done in order to optimise the reconstruction process. The comparison between ART, MLEM and OSEM indicates that ART can perform faster and with better image quality than the other, most common algorithms. It is claimed in this paper that if ART's relaxation parameter is carefully adjusted to the reconstruction procedure it can produce high quality images in short computational time. This is confirmed by showing that with the relaxation parameter evolving as a logarithmic function, ART can match in terms of image quality and overcome in terms of computational time the performance of MLEM and OSEM algorithms. However, this study was performed only with simulated data and the level of noise with real data may be different.
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Affiliation(s)
- J Mesquita
- Universidade de Lisboa, Faculdade de Ciências, Instituto de Biofísica e Engenharia Biomédica, Campo Grande, Lisbon, Portugal
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Oliveira N, Matela N, Bugalho R, Ferreira N, Almeida P. Optimization of 2D image reconstruction for positron emission mammography using IDL. Comput Biol Med 2009; 39:119-29. [PMID: 19162262 DOI: 10.1016/j.compbiomed.2008.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2007] [Revised: 09/24/2008] [Accepted: 11/23/2008] [Indexed: 11/27/2022]
Abstract
The Clear-PEM system is a prototype machine for Positron Emission Mammography (PEM) under development within the Portuguese PET-Mammography consortium. We have embedded 2D image reconstruction algorithms implemented in IDL within the prototype's image analysis package. The IDL implementation of these algorithms proved to be accurate and computationally efficient. In this paper, we present the implementation of the MLEM, OSEM and ART 2D iterative image reconstruction algorithms for PEM using IDL. C and IDL implementations are compared using realistic Monte Carlo simulated data. We show that IDL can be used for the easy implementation of image reconstruction algorithms for emission tomography.
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Affiliation(s)
- N Oliveira
- Universidade de Lisboa, Instituto de Biofísica e Engenharia Biomédica, Portugal
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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, 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, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, 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, Clément B, Clément C, 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 P, 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, 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, Hanagaki K, 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, Hooper R, 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, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendes A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Monk J, 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, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Oguri V, Oliveira N, 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, Perea PM, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Tanasijczuk A, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Walder J, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Weerts H, 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 C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Study of the decay Bs(0)-->Ds(*)Ds(*). Phys Rev Lett 2007; 99:241801. [PMID: 18233437 DOI: 10.1103/physrevlett.99.241801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Indexed: 05/25/2023]
Abstract
We report a study of the decay Bs(0)-->Ds(*)Ds(*) using a data sample corresponding to 1.3 fb(-1) of integrated luminosity collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. One Ds(*) meson was partially reconstructed in the decay Ds-->phi mu nu, and the other Ds(*) meson was identified using the decay Ds-->phi pi where no attempt was made to distinguish Ds and Ds(*) states. For the branching fraction Br(Bs(0)-->Ds(*)Ds(*)) we obtain a 90% C.L. range [0.002,0.080] and central value 0.039(-0.017)(+0.019)(stat)(-0.015)(+0.016)(syst). This was subsequently used to make the most precise estimate of the width difference DeltaGamma(s)CP in the Bs(0)-Bs(0) system: DeltaGamma(s)CP/Gamma(s)=0.079(-0.035)(+0.038)(stat)(-0.030)(+0.031)(syst).
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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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, 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, Barnes C, 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, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bos K, 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, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, 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, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies B, Davies G, De K, de Jong P, 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, Doidge 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, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendes A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Monk J, 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, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Oguri V, Oliveira N, 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, Perea PM, 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, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Weerts H, 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 C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for production of single top quarks via tcg and tug flavor-changing-neutral-current couplings. Phys Rev Lett 2007; 99:191802. [PMID: 18233063 DOI: 10.1103/physrevlett.99.191802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Indexed: 05/25/2023]
Abstract
We search for the production of single top quarks via flavor-changing-neutral-current couplings of a gluon to the top quark and a charm (c) or up (u) quark. We analyze 230 pb{-1} of lepton+jets data from pp[over] collisions at a center of mass energy of 1.96 TeV collected by the D0 detector at the Fermilab Tevatron Collider. We observe no significant deviation from standard model predictions, and hence set upper limits on the anomalous coupling parameters kappa{g}{c}/Lambda and kappa{g}{u}/Lambda, where kappa{g} define the strength of tcg and tug couplings, and Lambda defines the scale of new physics. The limits at 95% C.L. are kappa{g}{c}/Lambda<0.15 TeV-1 and kappa{g}{u}/Lambda<0.037 TeV-1.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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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, 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, Bargassa P, Baringer P, Barnes C, 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, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, De K, de Jong P, 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, Doidge 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, Feligioni L, 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 A, Gay P, Geist W, Gelé D, Gelhaus R, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lam D, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, McCarthy R, Melnitchouk A, Mendes A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Monk J, 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, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Oguri V, Oliveira N, 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, Perea PM, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for techniparticles in e+jets events at D0. Phys Rev Lett 2007; 98:221801. [PMID: 17677833 DOI: 10.1103/physrevlett.98.221801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Indexed: 05/16/2023]
Abstract
We search for the technicolor process pp-->rhoT/omegaT-->WpiT in events containing one electron and two jets, in data corresponding to an integrated luminosity of 390 pb(-1), recorded by the D0 experiment at the Fermilab Tevatron. Technicolor predicts that technipions pi(T) decay dominantly into bb, bc, or bc, depending on their charge. In these events b and c quarks are identified by their secondary decay vertices within jets. Two analysis methods based on topological variables are presented. Since no excess above the standard model prediction was found, the result is presented as an exclusion in the pi(T) vs rho(T) mass plane for a given set of model parameters.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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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, 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, Bargassa P, Baringer P, Barnes C, 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, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Boos EE, Borissov G, Bos K, 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, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, De K, de Jong P, 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, Doidge 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, Feligioni L, 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 A, Gay P, Geist W, Gelé D, Gelhaus R, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lam D, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, McCarthy R, Melnitchouk A, Mendes A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Monk J, 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, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Oguri V, Oliveira N, 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, Perea PM, 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, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Vetterli M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Evidence for production of single top quarks and first direct measurement of |Vtb|. Phys Rev Lett 2007; 98:181802. [PMID: 17501561 DOI: 10.1103/physrevlett.98.181802] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Indexed: 05/15/2023]
Abstract
The D0 Collaboration presents first evidence for the production of single top quarks at the Fermilab Tevatron pp[over ] collider. Using a 0.9 fb(-1) dataset, we apply a multivariate analysis to separate signal from background and measure sigma(pp[over ]-->tb+X,tqb+X)=4.9+/-1.4 pb. The probability to measure a cross section at this value or higher in the absence of a signal is 0.035%, corresponding to a 3.4 standard deviation significance. We use the cross section measurement to directly determine the Cabibbo-Kobayashi-Maskawa matrix element that describes the Wtb coupling and find 0.68<|V(tb)|</=1 at 95% C.L. within the standard model.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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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, 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, Bargassa P, Baringer P, Barnes C, 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, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, De K, de Jong P, 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, Doidge 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, Feligioni L, 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 A, Gay P, Geist W, Gelé D, Gelhaus R, 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, Hanagaki K, 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, Holubyev K, Hong SJ, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lam D, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, McCarthy R, Melnitchouk A, Mendes A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Monk J, 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, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Oguri V, Oliveira N, 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, Perea PM, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Measurement of the charge asymmetry in semileptonic Bs0 decays. Phys Rev Lett 2007; 98:151801. [PMID: 17501335 DOI: 10.1103/physrevlett.98.151801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Indexed: 05/15/2023]
Abstract
We have performed the first direct measurement of the time-integrated flavor untagged charge asymmetry in semileptonic Bs0 decays ASLs,unt by comparing the decay rate of Bs0-->micro+Ds-nuX, where Ds- -->phipi- and phi-->K+K-, with the charge-conjugate Bs0 decay rate. This sample was selected from 1.3 fb-1 of data collected by the D0 experiment in run II of the Fermilab Tevatron collider. We obtain ASLs,unt=[1.23+/-0.97(stat)+/-0.17(syst)]x10(-2). Assuming that Deltam(s)/Gamma(s)>>1, this result can be translated into a measurement of the CP-violating phase in Bs0 mixing: DeltaGamma(s)/Deltam(s)tanphi(s)=[2.45+/-1.93(stat)+/-0.35(syst)]x10(-2).
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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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, 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, Barnes C, 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, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, 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, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies B, Davies G, De K, de Jong P, 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, Doidge 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, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li L, Li QZ, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendes A, Mendoza L, Mercadante PG, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Monk J, 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, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Oguri V, Oliveira N, 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, Perea PM, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber G, Weber M, Weerts H, 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 C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Lifetime difference and CP-violating phase in the Bs0 system. Phys Rev Lett 2007; 98:121801. [PMID: 17501111 DOI: 10.1103/physrevlett.98.121801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Indexed: 05/15/2023]
Abstract
From an analysis of the decay Bs0-->J/psi phi, we obtain the width difference between the light and heavy mass eigenstates DeltaGamma identical with (GammaL-GammaH)=0.17+/-0.09(stat)+/-0.02(syst) ps-1 and the CP-violating phase phis=-0.79+/-0.56(stat)(-0.01)(+0.14)(syst). Under the hypothesis of no CP violation (phis identical with 0), we obtain 1/Gamma=tau(Bs0)=1.52+/-0.08(stat)(-0.03)(+0.01)(syst) ps and DeltaGamma=0.12(-0.10)(+0.08)(stat)+/-0.02(syst) ps-1. The data sample corresponds to an integrated luminosity of about 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron collider. This is the first direct measurement of the CP-violating mixing phase in the Bs0 system.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov 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, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakraborty D, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, 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, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, McCarthy R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, 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, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Experimental discrimination between charge 2e/3 top quark and charge 4e/3 exotic quark production scenarios. Phys Rev Lett 2007; 98:041801. [PMID: 17358756 DOI: 10.1103/physrevlett.98.041801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2006] [Indexed: 05/14/2023]
Abstract
We present the first experimental discrimination between the 2e/3 and 4e/3 top quark electric charge scenarios, using top quark pairs (tt) produced in pp collisions at (square root) s = 1.96 TeV by the Fermilab Tevatron Collider. We use 370 pb;{-1} of data collected by the D0 experiment and select events with at least one high transverse momentum electron or muon, high transverse energy imbalance, and four or more jets. We discriminate between b- and b-quark jets by using the charge and momenta of tracks within the jet cones. The data are consistent with the expected electric charge, |q|=2e/3. We exclude, at the 92% C.L., that the sample is solely due to the production of exotic quark pairs QQ with |q|=4e/3. We place an upper limit on the fraction of QQ pairs rho<0.80 at the 90% C.L.
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Affiliation(s)
- V M Abazov
- Radboud University Nijmegen/NIKHEF, Nijmegen, The Netherlands
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Lobo S, Oliveira N, Lobo F, Rezende E, Borges B, Cunrath G, Silva J, Ronchi L. Oxygen delivery optimization using lithium indicator dilution and pulse power analysis during major surgery in high-risk patients. Crit Care 2007. [PMCID: PMC4095358 DOI: 10.1186/cc5465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Askew A, Asman B, Jesus ACSA, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borcherding F, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calvet S, Cammin J, Caron S, Carrasco-Lizarraga MA, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Estrada J, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Gounder K, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, 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, Hanagaki K, 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, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Kryemadhi A, Krzywdzinski S, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lager S, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Leonidopoulos C, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, McCarthy R, McCroskey R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, y Garzón GJO, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rani KJ, Ranjan K, Rapidis PA, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, 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, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhao Z, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Measurement of the Bs(0) lifetime using semileptonic decays. Phys Rev Lett 2006; 97:241801. [PMID: 17280267 DOI: 10.1103/physrevlett.97.241801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Indexed: 05/13/2023]
Abstract
We report a measurement of the Bs(0) lifetime in the semileptonic decay channel Bs(0) --> Ds- mu+ nuX (and its charge conjugate), using approximately 0.4 fb(-1) of data collected with the D0 detector during 2002-2004. Using 5176 reconstructed Ds- mu+ signal events, we have measured the Bs(0) lifetime to be tau(Bs(0))=1.398+/-0.044(stat)(-0.025)(+0.028)(syst) ps. This is the most precise measurement of the Bs(0) lifetime to date.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Askew A, Asman B, Jesus ACSA, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakraborty D, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, 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, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, McCarthy R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Y Garzón GJO, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, 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, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for pair production of scalar bottom quarks in pp collisions at square root of s = 1.96 TeV. Phys Rev Lett 2006; 97:171806. [PMID: 17155465 DOI: 10.1103/physrevlett.97.171806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2006] [Indexed: 05/12/2023]
Abstract
A search for direct production of scalar bottom quarks (b) is performed with 310 pb(-1) of data collected by the D0 experiment in pp collisions at square root s = 1.96 TeV at the Fermilab Tevatron Collider. The topology analyzed consists of two b jets and an imbalance in transverse momentum due to undetected neutralinos (chi(1)0), with chi(1)0 assumed to be the lightest supersymmetric particle. We find the data consistent with standard model expectations, and set a 95% C.L. exclusion domain in the (m(b), m(chi(1)0)) mass plane, improving significantly upon the results from run I of the Tevatron.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Askew A, Asman B, Jesus ACSA, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakraborty D, Chan KM, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, Cruz-Burelo EDL, Martins CDO, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, 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, 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, Hanagaki K, 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, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lammers S, Landsberg G, Lazoflores J, Bihan ACL, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, McCarthy R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Y Garzón GJO, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Potter C, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Kooten RV, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Toerne EV, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for neutral, long-lived particles decaying into two muons in pp[over] collisions at sqrt[s]=1.96 TeV. Phys Rev Lett 2006; 97:161802. [PMID: 17155383 DOI: 10.1103/physrevlett.97.161802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Indexed: 05/12/2023]
Abstract
We present a search for a neutral particle, pair produced in pp[over] collisions at sqrt[s]=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses approximately 380 pb(-1) of data recorded with the D0 detector. The background is estimated to be about one event. No candidates are observed, and limits are set on the pair-production cross section times branching fraction into dimuons + X for such particles. For a mass of 10 GeV and lifetime of 4x10(-11) s, we exclude values greater than 0.14 pb (95% C.L.). These results are used to limit the interpretation of NuTeV's excess of dimuon events.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Askew A, Asman B, Jesus ACSA, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, Cruz-Burelo EDL, Martins CDO, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Estrada J, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, 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, 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, Hanagaki K, 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, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Kesisoglou S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lager S, Lammers S, Landsberg G, Lazoflores J, Bihan ACL, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, McCarthy R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Y Garzón GJO, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Kooten RV, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Toerne EV, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for the standard model Higgs Boson in the pp[over]-->ZH-->nunu[over]bb[over] channel. Phys Rev Lett 2006; 97:161803. [PMID: 17155384 DOI: 10.1103/physrevlett.97.161803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Indexed: 05/12/2023]
Abstract
We report a search for the standard model (SM) Higgs boson based on data collected by the D0 experiment at the Fermilab Tevatron Collider, corresponding to an integrated luminosity of 260 pb(-1). We study events with missing transverse energy and two acoplanar b jets, which provide sensitivity to the ZH production cross section in the nunu[over]bb[over] channel, and to WH production when the lepton from the W-->lnu decay is undetected. The data are consistent with the SM background expectation, and we set 95% C.L. upper limits on sigma(pp[over]-->ZH/WH)xB(H-->bb[over]) from 3.4/8.3 to 2.5/6.3 pb, for Higgs-boson masses between 105 and 135 GeV.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov 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, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Estrada J, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, 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, 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, Hanagaki K, 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, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Kesisoglou S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lager S, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, McCarthy R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, 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, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for associated higgs boson production WH-->WWW*-->l+/-nul'+/-nu'+X in pp collisions at square root s=1.96 Te V. Phys Rev Lett 2006; 97:151804. [PMID: 17155320 DOI: 10.1103/physrevlett.97.151804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2006] [Indexed: 05/12/2023]
Abstract
We present a search for associated Higgs boson production in the process pp-->WH-->WWW*-->l;+/-nul'+/-nu'+X in final states containing two like-sign isolated electrons or muons (e+/-e;+/-, e+/-micro+/-, or micro+/-micro+/-). The search is based on D0 run II data samples corresponding to integrated luminosities of 360-380 pb-1. No excess is observed over the predicted standard model background. We set 95% C.L. upper limits on sigma(pp-->WH)xBr(H-->WW*) between 3.2 and 2.8 pb for Higgs boson masses from 115 to 175 GeV.
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Affiliation(s)
- V M Abazov
- Universidad de Buenos Aires, Buenos Aires, Argentina
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov 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, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borcherding F, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Estrada J, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Gounder K, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, 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, Hanagaki K, 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, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Kesisoglou S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Kryemadhi A, Krzywdzinski S, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lager S, Lammers S, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, McCarthy R, McCroskey R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Otero y Garzón GJ, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rani KJ, Ranjan K, Rapidis PA, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Kooten RV, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Von Toerne E, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhao Z, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for neutral Higgs bosons decaying to tau pairs in pp[over ] collisions at sqrt[s]=1.96 TeV. Phys Rev Lett 2006; 97:121802. [PMID: 17025951 DOI: 10.1103/physrevlett.97.121802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Indexed: 05/12/2023]
Abstract
A search for the production of neutral Higgs bosons Phi decaying into tau(+)tau(-) final states in pp[over ] collisions at a center-of-mass energy of 1.96 TeV is presented. The data, corresponding to an integrated luminosity of approximately 325 pb(-1), were collected by the D0 experiment at the Fermilab Tevatron Collider. Since no excess compared to the expectation from standard model processes is found, limits on the production cross section times branching ratio are set. The results are combined with those obtained from the D0 search for Phib(b[over ])-->bb[over ]b(b[over ]) and are interpreted in the minimal supersymmetric standard model.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Askew A, Asman B, Jesus ACSA, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Biscarat C, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borcherding F, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burke S, Burnett TH, Busato E, Buszello CP, Butler JM, Calfayan P, Calvet S, Cammin J, Caron S, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Cousinou MC, Cox B, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Das M, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Degenhardt JD, Déliot F, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dominguez A, Dong H, Dudko LV, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Elvira VD, Eno S, Ermolov P, Estrada J, Evans H, Evdokimov A, Evdokimov VN, Fatakia SN, Feligioni L, Ferapontov AV, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleck I, Ford M, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay A, Gay P, Gelé D, Gelhaus R, Gerber CE, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Gounder K, Goussiou A, Grannis PD, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, 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, Hanagaki K, 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, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hoeth H, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jenkins A, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JM, Kalk JR, Kappler S, Karmanov D, Kasper J, Kasper P, Katsanos I, Kau D, Kaur R, Kehoe R, Kermiche S, Kesisoglou S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YM, Khatidze D, Kim H, Kim TJ, Kirby MH, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Kryemadhi A, Krzywdzinski S, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lager S, Lammers S, Landsberg G, Lazoflores J, Bihan ACL, Lebrun P, Lee WM, Leflat A, Lehner F, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magass C, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malbouisson HB, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, McCarthy R, McCroskey R, Meder D, Melnitchouk A, Mendes A, Mendoza L, Merkin M, Merritt KW, Meyer A, Meyer J, Michaut M, Miettinen H, Millet T, Mitrevski J, Molina J, Mondal NK, Monk J, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundim L, Mutaf YD, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Oguri V, Oliveira N, Oshima N, Otec R, Y Garzón GJO, Owen M, Padley P, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Perea PM, Perez E, Peters K, Pétroff P, Petteni M, Piegaia R, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Pompos A, Pope BG, Popov AV, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rani KJ, Ranjan K, Rapidis PA, Ratoff PN, Renkel P, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Rud VI, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schmitt C, Schwanenberger C, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shchukin AA, Shephard WD, Shivpuri RK, Shpakov D, Siccardi V, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strom D, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tiller B, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Towers S, Trefzger T, Trincaz-Duvoid S, Tsybychev D, Tuchming B, Tully C, Turcot AS, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, Kooten RV, van Leeuwen WM, Varelas N, Varnes EW, Vartapetian A, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vlimant JR, Toerne EV, Voutilainen M, Vreeswijk M, Wahl HD, Wang L, Warchol J, Watts G, Wayne M, Weber M, Weerts H, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xie Y, Xuan N, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu C, Yu J, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhao Z, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zutshi V, Zverev EG. Search for resonant second generation slepton production at the Fermilab Tevatron. Phys Rev Lett 2006; 97:111801. [PMID: 17025876 DOI: 10.1103/physrevlett.97.111801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2006] [Indexed: 05/12/2023]
Abstract
We present a search for supersymmetry in the R-parity violating resonant production and decay of smuons and muon sneutrinos in the channels mu-->chi(1)(0)mu, mu-->chi(2,3,4)(0)mu, and nu(mu)-->chi(1,2)(+/-)mu. We analyzed 0.38 fb(-1) of integrated luminosity collected between April 2002 and August 2004 with the D0 detector at the Fermilab Tevatron Collider. The observed number of events is in agreement with the standard model expectation, and we calculate 95% C.L. limits on the slepton production cross section times branching fraction to gaugino plus muon, as a function of slepton and gaugino masses. In the framework of minimal supergravity, we set limits on the coupling parameter lambda(211)('), extending significantly previous results obtained in Run I of the Tevatron and at the CERN LEP collider.
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Affiliation(s)
- V M Abazov
- Joint Institute for Nuclear Research, Dubna, Russia
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