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

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Author(s):
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Abazov, V. M. [1] ; Abbott, B. [2] ; Acharya, B. S. [3] ; Adams, M. [4] ; Adams, T. [5] ; Alexeev, G. D. [1] ; Alkhazov, G. [6] ; Alton, A. [7] ; Alverson, G. [8] ; Alves, G. A. [9] ; Ancu, L. S. [10] ; Aoki, M. [11] ; Arov, M. [12] ; Askew, A. [5] ; Asman, B. [13, 14] ; Atramentov, O. [15] ; Avila, C. [16] ; BackusMayes, J. [17] ; Badaud, F. [18] ; Bagby, L. [11] ; Baldin, B. [11] ; Bandurin, D. V. [5] ; Banerjee, S. [3] ; Barberis, E. [8] ; Baringer, P. [19] ; Barreto, J. [20] ; Bartlett, J. F. [11] ; Bassler, U. [21] ; Bazterra, V. [4] ; Beale, S. [22, 23] ; Bean, A. [19] ; Begalli, M. [20] ; Begel, M. [24] ; Belanger-Champagne, C. [13, 14] ; Bellantoni, L. [11] ; Beri, S. B. [25] ; Bernardi, G. [26, 27] ; Bernhard, R. [28] ; Bertram, I. [29] ; Besancon, M. [21] ; Beuselinck, R. [30] ; Bezzubov, V. A. [31] ; Bhat, P. C. [11] ; Bhatnagar, V. [25] ; Blazey, G. [32] ; Blessing, S. [5] ; Bloom, K. [33] ; Boehnlein, A. [11] ; Boline, D. [34] ; Boos, E. E. [35] ; Borissov, G. [29] ; Bose, T. [36] ; Brandt, A. [37] ; Brandt, O. [38] ; Brock, R. [39] ; Brooijmans, G. [40] ; Bross, A. [11] ; Brown, D. [26, 27] ; Brown, J. [26, 27] ; Bu, X. B. [11] ; Buehler, M. [41] ; Buescher, V. [42] ; Bunichev, V. [35] ; Burdin, S. [29] ; Burnett, T. H. [17] ; Buszello, C. P. [13, 14] ; Calpas, B. [43] ; Camacho-Perez, E. [44] ; Carrasco-Lizarraga, M. A. [19] ; Casey, B. C. K. [11] ; Castilla-Valdez, H. [44] ; Chakrabarti, S. [34] ; Chakraborty, D. [32] ; Chan, K. M. [45] ; Chandra, A. [46] ; Chen, G. [19] ; Chevalier-Thery, S. [21] ; Cho, D. K. [47] ; Cho, S. W. [48] ; Choi, S. [48] ; Choudhary, B. [49] ; Cihangir, S. [11] ; Claes, D. [33] ; Clutter, J. [19] ; Cooke, M. [11] ; Cooper, W. E. [11] ; Corcoran, M. [46] ; Couderc, F. [21] ; Cousinou, M. -C. [43] ; Croc, A. [21] ; Cutts, D. [47] ; Das, A. [50] ; Davies, G. [30] ; De, K. [37] ; de Jong, S. J. [10] ; De La Cruz-Burelo, E. [44] ; Deliot, F. [21] ; Demarteau, M. [11] ; Demina, R. [51] ; Denisov, D. [11] ; Denisov, S. P. [31] ; Desai, S. [11] ; Deterre, C. [21] ; DeVaughan, K. [33] ; Diehl, H. T. [11] ; Diesburg, M. [11] ; Dominguez, A. [33] ; Dorland, T. [17] ; Dubey, A. [49] ; Dudko, L. V. [35] ; Duggan, D. [15] ; Duperrin, A. [43] ; Dutt, S. [25] ; Dyshkant, A. [32] ; Eads, M. [33] ; Edmunds, D. [39] ; Ellison, J. [52] ; Elvira, V. D. [11] ; Enari, Y. [26, 27] ; Evans, H. [53] ; Evdokimov, A. [24] ; Evdokimov, V. N. [31] ; Facini, G. [8] ; Ferbel, T. [51] ; Fiedler, F. [42] ; Filthaut, F. [10] ; Fisher, W. [39] ; Fisk, H. E. [11] ; Fortner, M. [32] ; Fox, H. [29] ; Fuess, S. [11] ; Garcia-Bellido, A. [51] ; Gavrilov, V. [54] ; Gay, P. [18] ; Geng, W. [39, 43] ; Gerbaudo, D. [55] ; Gerber, C. E. [4] ; Gershtein, Y. [15] ; Ginther, G. [11, 51] ; Golovanov, G. [1] ; Goussiou, A. [17] ; Grannis, P. D. [34] ; Greder, S. [56] ; Greenlee, H. [11] ; Greenwood, Z. D. [12] ; Gregores, E. M. [57] ; Grenier, G. [58, 59] ; Gris, Ph. [18] ; Grivaz, J. -F. [60] ; Grohsjean, A. [21] ; Gruenendahl, S. [11] ; Gruenewald, M. W. [61] ; Guillemin, T. [60] ; Guo, F. [34] ; Gutierrez, G. [11] ; Gutierrez, P. [2] ; Haas, A. [40] ; Hagopian, S. [5] ; Haley, J. [8] ; Han, L. [62] ; Harder, K. [63] ; Harel, A. [51] ; Hauptman, J. M. [64] ; Hays, J. [30] ; Head, T. [63] ; Hebbeker, T. [65] ; Hedin, D. [32] ; Hegab, H. [66] ; Heinson, A. P. [52] ; Heintz, U. [47] ; Hensel, C. [38] ; Heredia-De La Cruz, I. [44] ; Herner, K. [7] ; Hesketh, G. [63] ; Hildreth, M. D. [45] ; Hirosky, R. [41] ; Hoang, T. [5] ; Hobbs, J. D. [34] ; Hoeneisen, B. [67] ; Hohlfeld, M. [42] ; Hubacek, Z. [68, 21] ; Huske, N. [26, 27] ; Hynek, V. [68] ; Iashvili, I. [69] ; Illingworth, R. [11] ; Ito, A. S. [11] ; Jabeen, S. [47] ; Jaffre, M. [60] ; Jamin, D. [43] ; Jayasinghe, A. [2] ; Jesik, R. [30] ; Johns, K. [50] ; Johnson, M. [11] ; Johnston, D. [33] ; Jonckheere, A. [11] ; Jonsson, P. [30] ; Joshi, J. [25] ; Jung, A. W. [11] ; Juste, A. [70, 71] ; Kaadze, K. [72] ; Kajfasz, E. [43] ; Karmanov, D. [35] ; Kasper, P. A. [11] ; Katsanos, I. [33] ; Kehoe, R. [73] ; Kermiche, S. [43] ; Khalatyan, N. [11] ; Khanov, A. [66] ; Kharchilava, A. [69] ; Kharzheev, Y. N. [1] ; Khatidze, D. [47] ; Kirby, M. H. [74] ; Kohli, J. M. [25] ; Kozelov, A. V. [31] ; Kraus, J. [39] ; Kulikov, S. [31] ; Kumar, A. [69] ; Kupco, A. [75] ; Kurca, T. [58, 59] ; Kuzmin, V. A. [35] ; Kvita, J. [76] ; Lammers, S. [53] ; Landsberg, G. [47] ; Lebrun, P. [58, 59] ; Lee, H. S. [48] ; Lee, S. W. [64] ; Lee, W. M. [11] ; Lellouch, J. [26, 27] ; Li, L. [52] ; Li, Q. Z. [11] ; Lietti, S. M. [77] ; Lim, J. K. [48] ; Lincoln, D. [11] ; Linnemann, J. [39] ; Lipaev, V. V. [31] ; Lipton, R. [11] ; Liu, Y. [62] ; Liu, Z. [22, 23] ; Lobodenko, A. [6] ; Lokajicek, M. [75] ; Lopes de Sa, R. [34] ; Lubatti, H. J. [17] ; Luna-Garcia, R. [44] ; Lyon, A. L. [11] ; Maciel, A. K. A. [9] ; Mackin, D. [46] ; Madar, R. [21] ; Magana-Villalba, R. [44] ; Malik, S. [33] ; Malyshev, V. L. [1] ; Maravin, Y. [72] ; Martinez-Ortega, J. [44] ; McCarthy, R. [34] ; McGivern, C. L. [19] ; Meijer, M. M. [10] ; Melnitchouk, A. [78] ; Menezes, D. [32] ; Mercadante, P. G. [57] ; Merkin, M. [35] ; Meyer, A. [65] ; Meyer, J. [38] ; Miconi, F. [56] ; Mondal, N. K. [3] ; Muanza, G. S. [43] ; Mulhearn, M. [41] ; Nagy, E. [43] ; Naimuddin, M. [49] ; Narain, M. [47] ; Nayyar, R. [49] ; Neal, H. A. [7] ; Negret, J. P. [16] ; Neustroev, P. [6] ; Novaes, S. F. [77] ; Nunnemann, T. [79] ; Obrant, G. [6] ; Orduna, J. [46] ; Osman, N. [43] ; Osta, J. [45] ; Otero y Garzon, G. J. [80] ; Padilla, M. [52] ; Pal, A. [37] ; Parashar, N. [81] ; Parihar, V. [47] ; Park, S. K. [48] ; Parsons, J. [40] ; Partridge, R. [47] ; Parua, N. [53] ; Patwa, A. [24] ; Penning, B. [11] ; Perfilov, M. [35] ; Peters, K. [63] ; Peters, Y. [63] ; Petridis, K. [63] ; Petrillo, G. [51] ; Petroff, P. [60] ; Piegaia, R. [80] ; Piper, J. [39] ; Pleier, M. -A. [24] ; Podesta-Lerma, P. L. M. [44] ; Podstavkov, V. M. [11] ; Polozov, P. [54] ; Popov, A. V. [31] ; Prewitt, M. [46] ; Price, D. [53] ; Prokopenko, N. [31] ; Protopopescu, S. [24] ; Qian, J. [7] ; Quadt, A. [38] ; Quinn, B. [78] ; Rangel, M. S. [9] ; Ranjan, K. [49] ; Ratoff, P. N. [29] ; Razumov, I. [31] ; Renkel, P. [73] ; Rijssenbeek, M. [34] ; Ripp-Baudot, I. [56] ; Rizatdinova, F. [66] ; Rominsky, M. [11] ; Ross, A. [29] ; Royon, C. [21] ; Rubinov, P. [11] ; Ruchti, R. [45] ; Safronov, G. [54] ; Sajot, G. [82] ; Salcido, P. [32] ; Sanchez-Hernandez, A. [44] ; Sanders, M. P. [79] ; Sanghi, B. [11] ; Santos, A. S. [77] ; Savage, G. [11] ; Sawyer, L. [12] ; Scanlon, T. [30] ; Schamberger, R. D. [34] ; Scheglov, Y. [6] ; Schellman, H. [74] ; Schliephake, T. [83] ; Schlobohm, S. [17] ; Schwanenberger, C. [63] ; Schwienhorst, R. [39] ; Sekaric, J. [19] ; Severini, H. [2] ; Shabalina, E. [38] ; Shary, V. [21] ; Shchukin, A. A. [31] ; Shivpuri, R. K. [49] ; Simak, V. [68] ; Sirotenko, V. [11] ; Skubic, P. [2] ; Slattery, P. [51] ; Smirnov, D. [45] ; Smith, K. J. [69] ; Snow, G. R. [33] ; Snow, J. [84] ; Snyder, S. [24] ; Soeldner-Rembold, S. [63] ; Sonnenschein, L. [65] ; Soustruznik, K. [76] ; Stark, J. [82] ; Stolin, V. [54] ; Stoyanova, D. A. [31] ; Strauss, M. [2] ; Strom, D. [4] ; Stutte, L. [11] ; Suter, L. [63] ; Svoisky, P. [2] ; Takahashi, M. [63] ; Tanasijczuk, A. [80] ; Taylor, W. [22, 23] ; Titov, M. [21] ; Tokmenin, V. V. [1] ; Tsai, Y. -T. [51] ; Tsybychev, D. [34] ; Tuchming, B. [21] ; Tully, C. [55] ; Uvarov, L. [6] ; Uvarov, S. [6] ; Uzunyan, S. [32] ; Van Kooten, R. [53] ; Van Leeuwen, W. M. [85, 86] ; Varelas, N. [4] ; Varnes, E. W. [50] ; Vasilyev, I. A. [31] ; Verdier, P. [58, 59] ; Vertogradov, L. S. [1] ; Verzocchi, M. [11] ; Vesterinen, M. [63] ; Vilanova, D. [21] ; Vokac, P. [68] ; Wahl, H. D. [5] ; Wang, M. H. L. S. [51] ; Warchol, J. [45] ; Watts, G. [17] ; Wayne, M. [45] ; Weber, M. [11] ; Welty-Rieger, L. [74] ; White, A. [37] ; Wicke, D. [83] ; Williams, M. R. J. [29] ; Wilson, G. W. [19] ; Wobisch, M. [12] ; Wood, D. R. [8] ; Wyatt, T. R. [63] ; Xie, Y. [11] ; Xu, C. [7] ; Yacoob, S. [74] ; Yamada, R. [11] ; Yang, W. -C. [63] ; Yasuda, T. [11] ; Yatsunenko, Y. A. [1] ; Ye, Z. [11] ; Yin, H. [11] ; Yip, K. [24] ; Youn, S. W. [11] ; Yu, J. [37] ; Zelitch, S. [41] ; Zhao, T. [17] ; Zhou, B. [7] ; Zhu, J. [7] ; Zielinski, M. [51] ; Zieminska, D. [53] ; Zivkovic, L. [47] ; Collaboration, D0
Total Authors: 422
Affiliation:
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[1] Joint Inst Nucl Res, Dubna - Russia
[2] Univ Oklahoma, Norman, OK 73019 - USA
[3] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra - India
[4] Univ Illinois, Chicago, IL 60607 - USA
[5] Florida State Univ, Tallahassee, FL 32306 - USA
[6] Petersburg Nucl Phys Inst, St Petersburg - Russia
[7] Univ Michigan, Ann Arbor, MI 48109 - USA
[8] Northeastern Univ, Boston, MA 02115 - USA
[9] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro - Brazil
[10] Radboud Univ Nijmegen NIKHEF, Nijmegen - Netherlands
[11] Fermilab Natl Accelerator Lab, Batavia, IL 60510 - USA
[12] Louisiana Tech Univ, Ruston, LA 71272 - USA
[13] Uppsala Univ, Uppsala - Sweden
[14] Stockholm Univ, S-10691 Stockholm - Sweden
[15] Rutgers State Univ, Piscataway, NJ 08855 - USA
[16] Univ Los Andes, Bogota - Colombia
[17] Univ Washington, Seattle, WA 98195 - USA
[18] Univ Clermont Ferrand, CNRS IN2P3, LPC, Clermont - France
[19] Univ Kansas, Lawrence, KS 66045 - USA
[20] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro - Brazil
[21] CEA, SPP, Saclay - France
[22] Simon Fraser Univ, Vancouver, BC - Canada
[23] York Univ, Toronto, ON M3J 2R7 - Canada
[24] Brookhaven Natl Lab, Upton, NY 11973 - USA
[25] Panjab Univ, Chandigarh 160014 - India
[26] Univ Paris 06, LPNHE, Paris - France
[27] Univ Paris 07, CNRS IN2P3, Paris - France
[28] Univ Freiberg, Inst Phys, Freiburg - Germany
[29] Univ Lancaster, Lancaster LA1 4YB - England
[30] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ - England
[31] Inst High Energy Phys, Protvino - Russia
[32] No Illinois Univ, De Kalb, IL 60115 - USA
[33] Univ Nebraska, Lincoln, NE 68588 - USA
[34] SUNY Stony Brook, Stony Brook, NY 11794 - USA
[35] Moscow MV Lomonosov State Univ, Moscow - Russia
[36] Boston Univ, Boston, MA 02215 - USA
[37] Univ Texas Arlington, Arlington, TX 76019 - USA
[38] Univ Gottingen, Inst Phys 2, Gottingen - Germany
[39] Michigan State Univ, E Lansing, MI 48824 - USA
[40] Columbia Univ, New York, NY 10027 - USA
[41] Univ Virginia, Charlottesville, VA 22901 - USA
[42] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz - Germany
[43] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille - France
[44] CINVESTAV, Mexico City 14000, DF - Mexico
[45] Univ Notre Dame, Notre Dame, IN 46556 - USA
[46] Rice Univ, Houston, TX 77005 - USA
[47] Brown Univ, Providence, RI 02912 - USA
[48] Korea Univ, Korea Detector Lab, Seoul - South Korea
[49] Univ Delhi, Delhi 110007 - India
[50] Univ Arizona, Tucson, AZ 85721 - USA
[51] Univ Rochester, Rochester, NY 14627 - USA
[52] Univ Calif Riverside, Riverside, CA 92521 - USA
[53] Indiana Univ, Bloomington, IN 47405 - USA
[54] Inst Theoret & Expt Phys, Moscow 117259 - Russia
[55] Princeton Univ, Princeton, NJ 08544 - USA
[56] Univ Strasbourg, CNRS IN2P3, IPHC, Strasbourg - France
[57] Univ Fed Abc, Santo Andre - Brazil
[58] Univ Lyon, Lyon - France
[59] Univ Lyon 1, CNRS IN2P3, IPNL, F-69622 Villeurbanne - France
[60] Univ Paris 11, CNRS IN2P3, LAL, Orsay - France
[61] Univ Coll Dublin, Dublin 2 - Ireland
[62] Univ Sci & Technol China, Hefei 230026 - Peoples R China
[63] Univ Manchester, Manchester M13 9PL, Lancs - England
[64] Iowa State Univ, Ames, IA 50011 - USA
[65] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen - Germany
[66] Oklahoma State Univ, Stillwater, OK 74078 - USA
[67] Univ San Francisco Quito, Quito - Ecuador
[68] Czech Tech Univ, Prague - Czech Republic
[69] SUNY Buffalo, Buffalo, NY 14260 - USA
[70] Inst Catalana Recerca & Estudis Avancats, Barcelona - Spain
[71] Inst Fis Altes Energies, Barcelona - Spain
[72] Kansas State Univ, Manhattan, KS 66506 - USA
[73] So Methodist Univ, Dallas, TX 75275 - USA
[74] Northwestern Univ, Evanston, IL 60208 - USA
[75] Acad Sci Czech Republic, Inst Phys, Ctr Particle Phys, Prague - Czech Republic
[76] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague - Czech Republic
[77] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo - Brazil
[78] Univ Mississippi, University, MS 38677 - USA
[79] Univ Munich, Munich - Germany
[80] Univ Buenos Aires, Buenos Aires, DF - Argentina
[81] Purdue Univ Calumet, Hammond, IN 46323 - USA
[82] Univ Grenoble 1, LPSC, CNRS IN2P3, Inst Natl Polytech Grenoble, Grenoble - France
[83] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal - Germany
[84] Langston Univ, Langston, OK 73050 - USA
[85] FOM Inst NIKHEF, Amsterdam - Netherlands
[86] Univ Amsterdam NIKHEF, Amsterdam - Netherlands
Total Affiliations: 86
Document type: Journal article
Source: Physical Review D; v. 84, n. 3 AUG 4 2011.
Web of Science Citations: 13
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. (AU)