Measurement of the production fraction times branching fraction f(b -> Lambda(b)) . B(Lambda(b) -> J/psi Lambda)

Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; Ancu, L. S.; Safronov, G.; Sajot, G.; Salcido, P.; Sanchez-Hernandez, A.; Sanders, M. P.; Eads, M.; Sanghi, B.; Santos, A. S.; Savage, G.; Jayasinghe, A.; Melnitchouk, A.; Belanger-Champagne, C.; Sawyer, L.; Scanlon, T.; Schamberger, R. D.; Scheglov, Y.; Schellman, H.; Schliephake, T.; Edmunds, D.; Schlobohm, S.; Schwanenberger, C.; Menezes, D.; Bagby, L.; Schwienhorst, R.; Sekaric, J.; Bellantoni, L.; Severini, H.; Shabalina, E.; Shary, V.; Shchukin, A. A.; Shivpuri, R. K.; Ellison, J.; Mercadante, P. G.; Simak, V.; Denisov, S. P.; Sirotenko, V.; Skubic, P.; Slattery, P.; Smirnov, D.; Beri, S. B.; Smith, K. J.; Snow, G. R.; Snow, J.; Merkin, M.; Snyder, S.; Elvira, V. D.; Jesik, R.; Soeldner-Rembold, S.; Sonnenschein, L.; Soustruznik, K.; Stark, J.; Stolin, V.; Stoyanova, D. A.; Bernardi, G.; Meyer, A.; Strauss, M.; Strom, D.; Stutte, L.; Johns, K.; Enari, Y.; Suter, L.; Svoisky, P.; Takahashi, M.; Tanasijczuk, A.; Taylor, W.; Bartlett, J. F.; Titov, M.; Tokmenin, V. V.; Bernhard, R.; Tsai, Y. -T.; Johnson, M.; Tsybychev, D.; Evans, H.; Tuchming, B.; Tully, C.; Uvarov, L.; Meyer, J.; Uvarov, S.; Uzunyan, S.; Van Kooten, R.; Van Leeuwen, W. M.; Varelas, N.; Johnston, D.; Bertram, I.; Varnes, E. W.; Arov, M.; Vasilyev, I. A.; Miconi, F.; Verdier, P.; Vertogradov, L. S.; Verzocchi, M.; Vesterinen, M.; Vilanova, D.; Vokac, P.; Jonckheere, A.; Wahl, H. D.; Wang, M. H. L. S.; Besancon, M.; Mondal, N. K.; Evdokimov, A.; Warchol, J.; Watts, G.; Wayne, M.; Weber, M.; Welty-Rieger, L.; White, A.; Jonsson, P.; Wicke, D.; Williams, M. R. J.; Dubey, A.; Wilson, G. W.; Wobisch, M.; Evdokimov, V. N.; Beuselinck, R.; Wood, D. R.; Wyatt, T. R.; Xie, Y.; Xu, C.; Joshi, J.; Yacoob, S.; Huske, N.; Yamada, R.; Yang, W. -C.; Yasuda, T.; Yatsunenko, Y. A.; Facini, G.; Ye, Z.; Bezzubov, V. A.; Yin, H.; Yip, K.; Jung, A. W.; Muanza, G. S.; Youn, S. W.; Yu, J.; Zelitch, S.; Zhao, T.; Zhou, B.; Zhu, J.; Ferbel, T.; Zielinski, M.; Zieminska, D.; Bhat, P. C.; Mulhearn, M.; Juste, A.; Zivkovic, L.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Fiedler, F.; Boos, E. E.; Nagy, E.; Borissov, G.; Kaadze, K.; Bose, T.; Brandt, A.; Brandt, O.; Brock, R.; Brooijmans, G.; Bross, A.; Brown, D.; Brown, J.; Naimuddin, M.; Filthaut, F.; Bu, X. B.; Desai, S.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Burnett, T. H.; Buszello, C. P.; Calpas, B.; Narain, M.; Camacho-Perez, E.; Carrasco-Lizarraga, M. A.; Fisher, W.; Baldin, B.; Casey, B. C. K.; Castilla-Valdez, H.; Chakrabarti, S.; Chakraborty, D.; Chan, K. M.; Chandra, A.; Nayyar, R.; Chen, G.; Chevalier-Thery, S.; Cho, D. K.; Cho, S. W.; Kajfasz, E.; Fisk, H. E.; Choi, S.; Choudhary, B.; Cihangir, S.; Claes, D.; Neal, H. A.; Clutter, J.; Cooke, M.; Cooper, W. E.; Corcoran, M.; Couderc, F.; Karmanov, D.; Cousinou, M. -C.; Fortner, M.; Croc, A.; Cutts, D.; Bassler, U.; Das, A.; Davies, G.; De, K.; de Jong, S. J.; De La Cruz-Burelo, E.; Deliot, F.; Kasper, P. A.; Demarteau, M.; Demina, R.; Fox, H.; Negret, J. P.; Denisov, D.; Askew, A.; Fuess, S.; Garcia-Bellido, A.; Gavrilov, V.; Gay, P.; Geng, W.; Katsanos, I.; Gerbaudo, D.; Gerber, C. E.; Neustroev, P.; Gershtein, Y.; Ginther, G.; Golovanov, G.; Asman, B.; Goussiou, A.; Grannis, P. D.; Greder, S.; Greenlee, H.; Kehoe, R.; Greenwood, Z. D.; Hynek, V.; Gregores, E. M.; Grenier, G.; Gris, Ph.; Grivaz, J. -F.; Grohsjean, A.; Atramentov, O.; Gruenendahl, S.; Gruenewald, M. W.; Guillemin, T.; Kermiche, S.; Dudko, L. V.; Guo, F.; Gutierrez, G.; Gutierrez, P.; Haas, A.; Hagopian, S.; Haley, J.; Han, L.; Avila, C.; Harder, K.; Harel, A.; Novaes, Sérgio Ferraz; Khalatyan, N.; Hauptman, J. M.; Hays, J.; Head, T.; Hebbeker, T.; Hedin, D.; Hegab, H.; Heinson, A. P.; Heintz, U.; BackusMayes, J.; Nunnemann, T.; Hensel, C.; Khanov, A.; Heredia-De La Cruz, I.; Herner, K.; Hesketh, G.; Hildreth, M. D.; Hirosky, R.; Hoang, T.; Hobbs, J. D.; Hoeneisen, B.; Obrant, G.; Hohlfeld, M.; Badaud, F.; Kharchilava, A.; Hubacek, Z.; Deterre, C.; Kharzheev, Y. N.; Bandurin, D. V.; Khatidze, D.; Kirby, M. H.; Kohli, J. M.; Orduna, J.; Kozelov, A. V.; Kraus, J.; Kulikov, S.; Kumar, A.; Kupco, A.; DeVaughan, K.; Kurca, T.; Kuzmin, V. A.; Banerjee, S.; Kvita, J.; Osman, N.; Lammers, S.; Landsberg, G.; Lebrun, P.; Lee, H. S.; Lee, S. W.; Lee, W. M.; Diehl, H. T.; Lellouch, J.; Li, L.; Li, Q. Z.; Osta, J.; Barberis, E.; Lietti, S. M.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Diesburg, M.; Liu, Y.; Liu, Z.; Otero y Garzon, G. J.; Lobodenko, A.; Lokajicek, M.; Baringer, P.; Lopes de Sa, R.; Lubatti, H. J.; Luna-Garcia, R.; Lyon, A. L.; Maciel, A. K. A.; Dominguez, A.; Mackin, D.; Padilla, M.; Madar, R.; Magana-Villalba, R.; Malik, S.; Malyshev, V. L.; Barreto, J.; Maravin, Y.; Martinez-Ortega, J.; McCarthy, R.; McGivern, C. L.; Dorland, T.; Bazterra, V.; Meijer, M. M.; Iashvili, I.; Pal, A.; Aoki, M.; Parashar, N.; Parihar, V.; Park, S. K.; Parsons, J.; Partridge, R.; Parua, N.; Patwa, A.; Penning, B.; Illingworth, R.; Perfilov, M.; Beale, S.; Duggan, D.; Peters, K.; Peters, Y.; Petridis, K.; Petrillo, G.; Petroff, P.; Piegaia, R.; Piper, J.; Ito, A. S.; Pleier, M. -A.; Podesta-Lerma, P. L. M.; Podstavkov, V. M.; Duperrin, A.; Bean, A.; Polozov, P.; Popov, A. V.; Prewitt, M.; Price, D.; Prokopenko, N.; Jabeen, S.; Protopopescu, S.; Qian, J.; Quadt, A.; Quinn, B.; Dutt, S.; Rangel, M. S.; Begalli, M.; Ranjan, K.; Ratoff, P. N.; Razumov, I.; Jaffre, M.; Renkel, P.; Rijssenbeek, M.; Ripp-Baudot, I.; Rizatdinova, F.; Rominsky, M.; Dyshkant, A.; Ross, A.; Royon, C.; Begel, M.; Rubinov, P.; Jamin, D.; Ruchti, R.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24572

Title:

Measurement of the production fraction times branching fraction f(b -> Lambda(b)) . B(Lambda(b) -> J/psi Lambda)

Author(s):

Institution:

Joint Inst Nucl Res
Univ Buenos Aires
Centro Brasileiro de Pesquisas Físicas (CBPF)
Univ Estado Rio de Janeiro
Universidade Federal do ABC (UFABC)
Universidade Estadual Paulista (UNESP)
Simon Fraser Univ
York Univ
Univ Sci & Technol China
Universidad de los Andes
Charles Univ Prague
Czech Tech Univ
Acad Sci Czech Republic
Univ San Francisco Quito
Univ Clermont Ferrand
Univ Grenoble 1
Aix Marseille Univ
Univ Paris 11
Univ Paris 06
Univ Paris 07
CEA
Univ Strasbourg
Univ Lyon 1
Univ Lyon
RWTH Aachen University
Univ Freiberg
Univ Gottingen
Johannes Gutenberg Univ Mainz
Univ Munich
Berg Univ Wuppertal
Panjab Univ
University of Delhi
Tata Inst Fundamental Res
Univ Coll Dublin
Korea University
CINVESTAV
FOM Inst NIKHEF
Univ Amsterdam NIKHEF
Radboud Univ Nijmegen NIKHEF
Institute for Theoretical and Experimental Physics (ITEP)
Moscow MV Lomonosov State Univ
Inst High Energy Phys
Petersburg Nucl Phys Inst
Inst Catalana Recerca & Estudis Avancats
Inst Fis Altes Energies
Stockholm Univ
Uppsala Univ
University of Lancaster
Univ London Imperial Coll Sci Technol & Med
University of Manchester
University of Arizona
University of California, Riverside (UCR)
Florida State University
Fermilab Natl Accelerator Lab
Univ Illinois
No Illinois Univ
Northwestern University (NU)
Indiana University
Purdue University Calumet
Univ Notre Dame
Iowa State Univ
University of Kansas (KU)
Kansas State University
Louisiana Tech University
Boston University
Northeastern University
University of Michigan
Michigan State University
University of Mississippi
Univ Nebraska
Rutgers State Univ
Princeton University
SUNY Buffalo
Columbia University
University of Rochester
SUNY Stony Brook
Brookhaven Natl Lab
Langston Univ
University of Oklahoma
Oklahoma State Univ
Brown University
Univ Texas Arlington
So Methodist Univ
Rice University
University of Virginia (UVA)
University of Washington

ISSN:

1550-7998

Sponsorship:

DOE (USA)
National Science Foundation (NSF) - USA
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
FASI (Russia)
Rosatom State Atomic Energy Corporation (ROSATOM)
Russian Foundation for Basic Research (RFBR)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Fundação para o Desenvolvimento da UNESP (FUNDUNESP)
Department of Atomic Energy (DAE) - India
Department of Science and Technology (DST) - India
Colciencias (Colombia)
Consejo Nacional de Ciencia y Tecnología (CONACYT)
KRF (Korea)
Korea Science and Engineering Foundation (KOSEF)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
UBACyT (Argentina)
Foundation for Fundamental Research on Matter (FOM)
Science and Technology Facilities Council (STFC)
Royal Society (United Kingdom)
MSMT (Czech Republic)
Czech Science Foundation (GACR)
CRC Program (Canada)
Natural Sciences and Engineering Research Council of Canada (NSERC)
Bundesministerium für Bildung und Forschung (BMBF)
Deutsche Forschungsgemeinschaft (DFG)
Science Foundation Ireland (SFI)
Swedish Research Council
Chinese Academy of Sciences (CAS)
CNSF (China)

Abstract:

The Lambda(b)(udb) baryon is observed in the decay Lambda(b) -> J/psi Lambda using 6.1fb(-1) of p (p) over bar collisions collected with the D0 detector at root s = 1/96 TeV. The production fraction multiplied by the branching fraction for this decay relative to that for the decay B-0 -> J/psi K-s(0) is measured to be 0.345 +/- 0.034(stat) +/- 0.033(syst) +/- 0.003(PDG). Using the world average value of f(b -> B-0) . B(B-0 -> J/psi K-s(0) = (1.74 +/- 0.08) x 10(-5), we obtain f(b -> Lambda(b)) . B(Lambda(b) -> J/psi Lambda) = (6.01 +/- 0.60(stat) +/- 0.58(syst) +/- 0.28(PDG)) x 10(-5). This measurement represents an improvement in precision by about a factor of 3 with respect to the current world average.

Issue Date:

4-Aug-2011

Citation:

Physical Review D. College Pk: Amer Physical Soc, v. 84, n. 3, p. 7, 2011.

Time Duration:

7

Publisher:

Amer Physical Soc

Source:

http://dx.doi.org/10.1103/PhysRevD.84.031102

URI:

http://hdl.handle.net/11449/24572

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/24572

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