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Knight-Jones TJD, Mylrea GE, Kahn S. Animal production food safety: priority pathogens for standard setting by the World Organisation for Animal Health. REV SCI TECH OIE 2011; 29:523-35. [PMID: 21309452 DOI: 10.20506/rst.29.3.1994] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this short study, expert opinion and a literature review were used to identify the pathogens that should be prioritised by the World Organisation for Animal Health (OIE) for the development of future standards for animal production food safety. Prioritisation was based on a pathogen's impact on human health and amenability to control using on-farm measures. As the OIE mandate includes alleviation of global poverty, the study focused on developing countries and those with 'in-transition' economies. The regions considered were Eastern Europe, Asia, the Middle East, Africa and South America. Salmonella (from species other than poultry) and pathogenic Escherichia coli were considered to be top priorities. Brucella spp., Echinococcus granulosus and Staphylococcus aureus were also mentioned by experts. As Salmonella, and to a lesser extent pathogenic E. coli, can be controlled by on-farm measures, these pathogens should be considered for prioritisation in future standard setting. On-farm control measures for Brucella spp. will be addressed in 2010-2011 in a review of the OLE Terrestrial Animal/Health Code chapter on brucellosis. In Africa, E. granulosus, the causative agent of hydatidosis, was estimated to have the greatest impact of all pathogens that could potentially be transmitted by food (i.e. via contamination). It was also listed for the Middle East and thought to be of importance by both South American experts consulted. Taenia saginata was thought to be of importance in South America and Africa and by one expert in the Middle East.
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Kahn S, Pelgrim W. The role of the World Trade Organization and the 'three sisters' (the World Organisation for Animal Health, the International Plant Protection Convention and the Codex Alimentarius Commission) in the control of invasive alien species and the preservation of biodiversity. REV SCI TECH OIE 2011; 29:411-7. [PMID: 20919590 DOI: 10.20506/rst.29.2.1986] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The missions of the World Organisation for Animal Health (OIE) include the design of surveillance and control methods for infectious transboundary animal diseases (including zoonoses), the provision of guarantees concerning animal health and animal production food safety, and the setting of standards for, and promotion of, animal welfare. The OIE role in setting standards for the sanitary safety of international trade in animals and animal products is formally recognised in the World Trade Organization (WTO) Agreement on the Application of Sanitary and Phytosanitary Measures (the SPS Agreement). While the primary focus of the OIE is on animal diseases and zoonoses, the OIE has also been working within the WTO framework to examine possible contributions the organisation can make to achieving the goals of the Convention on Biological Diversity, particularly to preventing the global spread of invasive alien species (IAS). However, at the present time, setting standards for invasive species (other than those connected to the cause and distribution of diseases listed by the OIE) is outside the OIE mandate. Any future expansion of the OIE mandate would need to be decided by its Members and resources (expertise and financial contributions) for an extended standard-setting work programme secured. The other international standard-setting organisations referenced by the SPS Agreement are the International Plant Protection Convention (IPPC) and the Codex Alimentarius Commission (CAC). The IPPC mandate and work programme address IAS and the protection of biodiversity. The CAC is not involved in this field.
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Dalla Villa P, Kahn S, Stuardo L, Iannetti L, Di Nardo A, Serpell JA. Free-roaming dog control among OIE-member countries. Prev Vet Med 2010; 97:58-63. [PMID: 20709415 DOI: 10.1016/j.prevetmed.2010.07.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Revised: 05/14/2010] [Accepted: 07/01/2010] [Indexed: 10/19/2022]
Abstract
A questionnaire was distributed to the state veterinary services of all 172 OIE countries to collect data on the different national approaches to dog population control. We used all 81 completed questionnaires with ≥80% of the question answered to identify the different national approaches to the issue. The intensity of the free-roaming dog (FRD) problem was negatively correlated with the value of the UN's human development index recognized for each country. Dog bites/attacks and rabies were the main problems associated with FRDs, and these problems were reported disproportionately by less-developed countries. Dog-control programs (DCP) were more widely used among the more-developed countries. In less-developed countries, DCPs (when they existed at all) tended to employ killing methods (including poisoned baits), that are not recommended on animal-welfare grounds.
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Porter FS, Beiersdorfer P, Brown GV, Gu MF, Kelley RL, Kahn S, Kilbourne CA, Thorn DB. Evolution of X-ray calorimeter spectrometers at the Lawrence Livermore Electron Beam Ion Trap. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/163/1/012105] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kanabrocki EL, Sothern RB, Ryan MD, Kahn S, Augustine G, Johnson C, Foley S, Gathing A, Eastman G, Friedman N, Nemchausky BA, Kaplan E. Circadian characteristics of serum calcium, magnesium and eight trace elements and of their metallo-moieties in urine of healthy middle-aged men. LA CLINICA TERAPEUTICA 2008; 159:329-346. [PMID: 18998036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To monitor the around-the-clock distribution of serum and urine concentrations of calcium, magnesium and eight trace elements and of those same elements in urine after their dialysis, and to statistically describe their circadian characteristics by chronobiological procedures. MATERIALS AND METHODS Serum and urine samples were collected every 3h over a single 24h period from eleven clinically-healthy male subjects, 41-60 years of age, and were analyzed for calcium (Ca), magnesium (Mg), iron (Fe), copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd), cobalt (Co), chromium (Cr), and nickel (Ni). Urines were also sequentially dialyzed against ammonium-barbituric acid buffer at pH 7.35+/-0.02 using a 12.000-14.000 molecular weight exclusion sieve and then reanalyzed for the same elements. Urine concentrations were adjusted by urine volume to reflect a 3h excretion rate. Time-series were analyzed for circadian time-effect by ANOVA and for rhythm characteristics by the single cosinor fitting procedure. RESULTS The dialysis effectively removed 90% of total solids, 97% of urea, 92% creatinine, 72% uric acid, and essentially all of glucose. It also removed 99% of potassium (K), 96% of sodium (Na), 65% of Ca and P, 55% of Mg, 41% of Zn and 88% of Ni. A significant or borderline-significant 24h rhythm in serum was detected for Ca, Mg, Fe, Cu, Zn, Cd and Cr; in untreated urine for Ca, Fe, Cu, Zn, Ni, creatinine and volume; and in dialyzed urine for Ca, Fe, Cu, Zn, Pb, Cr, Cd and Ni. A 12h component was significant or borderline-significant in serum for Mg, Fe, Zn, and Cd; in untreated urine for volume, creatinine, Ca, Mg, Cu, and Ni; and in dialyzed urine for Ca, Mg, Fe, Cu, Zn, and Cr. In general, values in serum were lowest near the onset of sleep and highest in the first half of the day (between 02:28 and 13:56 h), while highest values in untreated or dialyzed urine were found several hours later in the day and at night. CONCLUSIONS Significant circadian variations were found in levels of nearly every element that was measured in blood and urine of 11 healthy men, but with highest and lowest levels occurring at different times. This suggests not only that urine concentrations need to be adjusted for collection time interval and urine volume, but that different biological limits at different times of the 24h day should be applied for serum and urinary monitoring of trace elements. We also found that the non-dialyzable segments of these elements in urine represent metallo-moieties composed of proteinacious matter greater than 12,000-14,000 Daltons. Further studies would be of interest to reveal time specificity for metabolic functions associated with any of these trace elements.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee S, Banerjee P, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, 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, 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, Chan K, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clément B, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, de Jong P, 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 J, Guo F, Gutierrez P, Gutierrez G, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JR, Kalk JM, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lellouch J, Leveque J, Lewis P, Li J, Li QZ, Li L, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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 J, Meyer A, Michaut M, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier MA, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pol ME, Polozov P, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schliephake T, 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, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow J, Snow GR, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stark J, Steele J, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strandberg S, Strang MA, Strauss M, Strauss E, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Talby M, Tamburello P, Tanasijczuk A, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov S, Uvarov L, Uzunyan S, Vachon B, van den Berg PJ, van Eijk B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weber G, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Search for flavor-changing-neutral-current d meson decays. PHYSICAL REVIEW LETTERS 2008; 100:101801. [PMID: 18352172 DOI: 10.1103/physrevlett.100.101801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2007] [Indexed: 05/26/2023]
Abstract
We study the flavor-changing-neutral-current process c-->u micro(+) micro(-) using 1.3 fb(-1) of pp[over ] collisions at square root s = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We see clear indications of the charged-current mediated D(s)(+) and D(+)-->phipi(+) --> micro(+)micro(-)pi(+) final states with significance greater than 4 standard deviations above background for the D(+) state. We search for the continuum neutral-current decay of D(+)-->pi(+) micro(+) micro(-) in the dimuon invariant mass spectrum away from the phi resonance. We see no evidence of signal above background and set a limit of B(D(+) --> pi(+) micro(+) micro(-))<3.9 x 10(-6) at the 90% C.L. This limit places the most stringent constraint on new phenomena in the c--> u micro(+) micro(-) transition.
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Kahn S, Stuardo L, Rahman SA. OIE guidelines on dog population control. DEVELOPMENTS IN BIOLOGICALS 2008; 131:511-516. [PMID: 18634514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
At the 73rd General Session the OIE decided to develop guidance for Members on humane methods for the control of stray animal populations. In 2006, an ad hoc Group was convened under the leadership of the OIE Permanent Animal Welfare Working Group. With valuable assistance from the OIE Collaborating Centre on Animal Welfare, a Questionnaire was developed and sent to OIE Members, of which 81 countries submitted responses. In light of this information, the ad hoc Group prepared a first draft report, which notes the importance of controlling stray dog populations to help prevent zoonotic diseases and non-disease related nuisances to society and the environment. In choosing the preferred method of control, the risks to operators must be taken into account, as well as religious, cultural and economic contexts of the country concerned. Depending on the situation, methods requiring individual animal restraint or methods for use at a distance may be recommended. While activities that aim to physically reduce the numbers of stray dogs are important, achievement of the long term goals of dog population control and avoidance of risks to human health depends on the education of dog owners and the general public as to their responsibilities. The draft report notes that sub-national jurisdictions are often those responsible for the control of stray dog populations. The key role played by non-governmental organisations in stray dog management in many countries is acknowledged. The draft report emphasises that the close involvement of veterinarians and of official Veterinary Services, working in collaboration with public health authorities, is necessary to realise long term goals.
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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(*). PHYSICAL REVIEW LETTERS 2007; 99:241801. [PMID: 18233437 DOI: 10.1103/physrevlett.99.241801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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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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. PHYSICAL REVIEW LETTERS 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] [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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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee S, Banerjee P, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, 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, 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, Chan K, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clément C, Clément B, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, de Jong P, 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 J, Guo F, Gutierrez P, Gutierrez G, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JR, Kalk JM, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kothari B, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lellouch J, Lesne V, Leveque J, Lewin M, Lewis P, Li J, Li QZ, Li L, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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 J, Meyer A, Michaut M, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, 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, Polozov P, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schliephake T, 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, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith RP, Snow J, Snow GR, 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, Strauss E, 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, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov S, Uvarov L, 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, Vokac P, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weber G, 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 J, Yu C, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Measurement of the Lambdab0 lifetime using semileptonic decays. PHYSICAL REVIEW LETTERS 2007; 99:182001. [PMID: 17995396 DOI: 10.1103/physrevlett.99.182001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2007] [Indexed: 05/25/2023]
Abstract
We report a measurement of the Lambda(b)(0) lifetime using a sample corresponding to 1.3 fb(-1) of data collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. The Lambda(b)(0) baryon is reconstructed via the decay Lambda(b)(0)-->micronuLambda(c)(+)X. Using 4437+/-329 signal candidates, we measure the Lambda(b)(0) lifetime to be tau(Lambda(b)(0))=1.290(-0.110)(+0.119)(stat)(-0.091)(+0.087)(syst) ps, which is among the most precise measurements in semileptonic Lambda(b)(0) decays. This result is in good agreement with the world average value.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee S, Banerjee P, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, 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, 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, Chan K, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clément C, Clément B, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, de Jong P, De La Cruz-Burelo E, Martins CDO, 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 J, Guo F, Gutierrez P, Gutierrez G, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JR, Kalk JM, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kothari B, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lellouch J, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Li L, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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 J, Meyer A, Michaut M, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Y Garzón GJO, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, 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, Polozov P, Pompos A, Pope BG, Popov AV, Potter C, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schliephake T, 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, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith RP, Snow J, Snow GR, 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, Strauss E, 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, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov S, Uvarov L, 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, Vokac P, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weber G, Weerts H, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Wilson GW, Williams MRJ, Wimpenny SJ, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yacoob S, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yip K, Yoo HD, Youn SW, Yu J, Yu C, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Properties of L=1 B(1) and B(2)* mesons. PHYSICAL REVIEW LETTERS 2007; 99:172001. [PMID: 17995320 DOI: 10.1103/physrevlett.99.172001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Indexed: 05/25/2023]
Abstract
This Letter presents the first strong evidence for the resolution of the excited B mesons B(1) and B(2)* as two separate states in fully reconstructed decays to B(+)(*)pi(-). The mass of B(1) is measured to be 5720.6+/-2.4+/-1.4 MeV/c(2) and the mass difference DeltaM between B(2)* and B(1) is 26.2+/-3.1+/-0.9 MeV/c;{2}, giving the mass of the B(2)* as 5746.8+/-2.4+/-1.7 MeV/c(2). The production rate for B(1) and B(2)* mesons is determined to be a fraction (13.9+/-1.9+/-3.2)% of the production rate of the B+ meson.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, 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, 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, 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, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kothari B, 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, Lellouch J, 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 Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Panikashvili N, 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, Rakitine A, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schliephake T, 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, 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, Tanasijczuk A, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van 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, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, 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, Zivkovic L, Zutshi V, Zverev EG. Measurement of the Lambda b lifetime in the exclusive decay Lambda b --> J/psi Lambda. PHYSICAL REVIEW LETTERS 2007; 99:142001. [PMID: 17930660 DOI: 10.1103/physrevlett.99.142001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2007] [Indexed: 05/25/2023]
Abstract
We have measured the Lambda b lifetime using the exclusive decay Lambda b --> J/psi Lambda, based on 1.2 fb(-1) of data collected with the D0 detector during 2002-2006. From 171 reconstructed Lambda b decays, where the J/psi and Lambda are identified via the decays J/psi --> mu+ mu- and Lambda --> ppi, we measured the Lambda b lifetime to be tau(Lambda b)=1.218 (+0.130)/(-0.115) (stat) +/- 0.042(syst) ps. We also measured the B0 lifetime in the decay B0 --> J/psi(mu+ mu-)K(0)/(S)(pi+ pi-) to be tau(B0)=1.501 (+0.078)/(-0.074) (stat) +/- 0.050(syst) ps, yielding a lifetime ratio of tau(Lambda b)/tau(B0)=0.811 (+0.096)/(-0.087) (stat) +/- 0.034(syst).
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud 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, 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, 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, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kothari B, 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, Lellouch J, 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 Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'dell V, O'neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Y Garzón GJO, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, 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, da Silva WLP, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schliephake T, 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, 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, Tanasijczuk A, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van 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, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, 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, Zivkovic L, Zutshi V, Zverev EG. Search for stopped gluinos from pp collisions at square root s = 1.96 TeV. PHYSICAL REVIEW LETTERS 2007; 99:131801. [PMID: 17930574 DOI: 10.1103/physrevlett.99.131801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2007] [Indexed: 05/25/2023]
Abstract
Long-lived, heavy particles are predicted in a number of models beyond the standard model of particle physics. We present the first direct search for such particles' decays, occurring up to 100 h after their production and not synchronized with an accelerator bunch crossing. We apply the analysis to the gluino (g), predicted in split supersymmetry, which after hadronization can become charged and lose enough momentum through ionization to come to rest in dense particle detectors. Approximately 410 pb(-1) of pp collisions at square root(s) = 1.96 TeV collected with the D0 detector during Run II of the Fermilab Tevatron collider are analyzed in search of such "stopped gluinos" decaying into a gluon and a neutralino (chi(1)(0)). Limits are placed on the (gluino cross section) x (probability to stop) x [BR(g --> g chi(1)(0))] as a function of the gluino and chi(1)(0) masses, for gluino lifetimes from 30 micros-100 h.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee P, Banerjee S, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, 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, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kothari B, 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, Lellouch J, 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 Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Otero Y Garzón GJ, Owen M, Padley P, Pangilinan M, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, 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, Rakitine A, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rubinov P, Ruchti R, Safonov G, 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, Schleiphake T, 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, 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, Tanasijczuk A, Taylor W, Telford P, Temple J, Tiller B, Tissandier F, Titov M, Tokmenin VV, Tomoto M, Toole T, Torchiani I, Trefzger T, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg PJ, van 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, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, 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, Zivkovic L, Zutshi V, Zverev EG. Search for third-generation scalar leptoquarks in pp at square root s=1.96 TeV. PHYSICAL REVIEW LETTERS 2007; 99:061801. [PMID: 17930814 DOI: 10.1103/physrevlett.99.061801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Indexed: 05/25/2023]
Abstract
We report on a search for charge-1/3 third-generation leptoquarks (LQ) produced in pp collisions at square root s =1.96 TeV using the D0 detector at Fermilab. Third-generation leptoquarks are assumed to be produced in pairs and to decay to a tau neutrino and a b quark with branching fraction B. We place upper limits on sigma(pp --> LQLQ)B2 as a function of the leptoquark mass M(LQ). Assuming B=1, we exclude at the 95% confidence level third-generation scalar leptoquarks with M(LQ)<229 GeV.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus ACS, Atramentov O, Autermann C, Avila C, Ay C, Badaud F, Baden A, Bagby L, Baldin B, Bandurin DV, Banerjee S, Banerjee P, Barberis E, Barfuss AF, Bargassa P, Baringer P, Barreto J, Bartlett JF, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez JA, Beri SB, Bernardi G, Bernhard R, Berntzon L, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloch D, Bloom K, Boehnlein A, Boline D, Bolton TA, Borissov G, 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, 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, Chan K, Chandra A, Charles F, Cheu E, Chevallier F, Cho DK, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clément C, Clément B, Coadou Y, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Crépé-Renaudin S, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong SJ, de Jong P, 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 J, Guo F, Gutierrez P, Gutierrez G, 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, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Jonckheere A, Jonsson P, Juste A, Käfer D, Kahn S, Kajfasz E, Kalinin AM, Kalk JR, Kalk JM, 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, Kirsch M, Klima B, Kohli JM, Konrath JP, Kopal M, Korablev VM, Kothari B, Kozelov AV, Krop D, Kryemadhi A, Kuhl T, Kumar A, Kunori S, Kupco A, Kurca T, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lazoflores J, Lebrun P, Lee WM, Leflat A, Lehner F, Lellouch J, Lesne V, Leveque J, Lewis P, Li J, Li QZ, Li L, Lietti SM, Lima JGR, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Liu Z, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Love P, Lubatti HJ, Lyon AL, Maciel AKA, Mackin D, 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, Merekov YP, Merkin M, Merritt KW, Meyer J, Meyer A, Michaut M, Millet T, Mitrevski J, Molina J, Mommsen RK, Mondal NK, Moore RW, Moulik T, Muanza GS, Mulders M, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann NA, Neal HA, Negret JP, Neustroev P, Nilsen H, Nomerotski A, Novaes SF, Nunnemann T, O'Dell V, O'Neil DC, Obrant G, Ochando C, Onoprienko D, Oshima N, Osta J, Otec R, Otero y Garzón GJ, Owen M, Padley P, Pangilinan M, Panov G, Parashar N, Park SJ, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, 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, Polozov P, Pompos A, Pope BG, Popov AV, Potter C, Prado da Silva WL, Prosper HB, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel MS, Rani KJ, Ranjan K, Ratoff PN, Renkel P, Reucroft S, Rich P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues RF, Royon C, Rozhdestvenski A, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger RD, Scheglov Y, Schellman H, Schieferdecker P, Schliephake T, 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, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith RP, Snow J, Snow GR, 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, Strauss E, 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, Tsybychev D, Tuchming B, Tully C, Tuts PM, Unalan R, Uvarov S, Uvarov L, 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, Vertogradova Y, Verzocchi M, Villeneuve-Seguier F, Vint P, Vokac P, Von Toerne E, Voutilainen M, Vreeswijk M, Wagner R, Wahl HD, Wang L, Wang MHLS, Warchol J, Watts G, Wayne M, Weber M, Weber G, 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 J, Yu C, Yurkewicz A, Zatserklyaniy A, Zeitnitz C, Zhang D, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev EG. Direct observation of the strange b baryon Xib-. PHYSICAL REVIEW LETTERS 2007; 99:052001. [PMID: 17930744 DOI: 10.1103/physrevlett.99.052001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Indexed: 05/25/2023]
Abstract
We report the first direct observation of the strange b baryon Xi(b)- (Xi(b)+). We reconstruct the decay Xi(b)- -->J/psiXi-, with J/psi-->mu+mu-, and Xi--->Lambdapi--->ppi-pi- in pp collisions at square root of s =1.96 TeV. Using 1.3 fb(-1) of data collected by the D0 detector, we observe 15.2 +/- 4.4(stat)(-0.4)(+1.9)(syst) Xi(b)- candidates at a mass of 5.774 +/- 0.011(stat) +/- 0.015(syst) GeV. The significance of the observed signal is 5.5 sigma, equivalent to a probability of 3.3 x 10(-8) of it arising from a background fluctuation. Normalizing to the decay Lambda(b)-->J/psiLambda, we measure the relative rate sigma(Xi(b-) x B(Xi)b})- -->J/psiXi-)/sigma(Lambda(b)) x B(Lambda(b)-->J/psiLambda) = 0.28+/-0.09(stat)(-0.08)(+0.09)(syst).
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Aguilo E, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Ancu LS, Andeen T, Anderson S, Andrieu B, Anzelc MS, 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. PHYSICAL REVIEW LETTERS 2007; 98:221801. [PMID: 17677833 DOI: 10.1103/physrevlett.98.221801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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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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|. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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