151. Observation of the Doubly StrangebBaryonΩb−
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S. W. Youn, I. Ripp-Baudot, Graham Wilson, Robert Hirosky, H. da Motta, A. Meyer, Maria Elena Pol, Christophe Royon, Markus Wobisch, Y. W. Liu, D. Gillberg, X. B. Bu, D. Bauer, A. Leflat, W. C. Yang, A. Evdokimov, G. Weber, Philip Baringer, J. Piper, S. Banerjee, A. Dubey, D. Chakraborty, F. Badaud, G. Grenier, Jovan Mitrevski, A. S. Ito, A. Melnitchouk, G. Gutierrez, N. A. Naumann, Gilvan Alves, Sergio F Novaes, Maxim Perfilov, F. Tissandier, A. Rakitine, K. W. Merritt, P. Svoisky, Don Lincoln, H. D. Wahl, G. D. Alexeev, Flera Rizatdinova, L. Christofek, S. J. Park, V. Hynek, P. Verdier, M. Naimuddin, Andrew White, B. Spurlock, Zeno Dixon Greenwood, J. F. Bartlett, Erich Varnes, P. Banerjee, Robert Kehoe, Yurii Maravin, Vladimir Gavrilov, O. Atramentov, G. Obrant, M. Arthaud, E.V. Komissarov, W. M. Van Leeuwen, V. V. Tokmenin, Karl Jakobs, V. A. Kuzmin, W. M. Lee, V. V. Lipaev, J. Lellouch, R. Luna, B. C.K. Casey, D. Smirnov, Gordon Watts, V. Sirotenko, Harald Fox, J. Clutter, J. Rieger, B. Sanghi, H. A. Neal, J. T. Linnemann, P. Polozov, A. Das, M. Sosebee, O. Mundal, K. Yip, L. Bellantoni, M. Petteni, Helena Malbouisson, D. Boline, Shabnam Jabeen, M. Merkin, J. Snow, Phillip Gutierrez, A. C.S. Assis Jesus, H. Hoeth, K. Herner, Guennadi Borissov, D. Onoprienko, I. A. Vasilyev, Tae Jeong Kim, B. Penning, J. M. Kalk, R. Unalan, L. Stutte, Gregory J Pawloski, K. Peters, Deidre Brown, Sergey Burdin, M. Eads, S. P. Denisov, J. N. Butler, A.S. Dyshkant, Jiri Kvita, M. Pangilinan, John Hobbs, Cristina Galea, T. Yasuda, J. Barreto, P. D. Grannis, Jonas Strandberg, Marvin Johnson, Vipin Bhatnagar, J. Steele, W. C. Fisher, A. V. Kozelov, R. Partridge, Pedro G Mercadante, Sung Keun Park, V. M. Podstavkov, D. A. Stoyanova, Michael Mulhearn, M. P. Sanders, T. Kuhl, S. J. De Jong, Jing Li, Wendy Taylor, V. Bunichev, Roger Moore, M. H. Kirby, M. Jaffré, M. Fortner, Neeti Parashar, P. Skubic, Kenneth Bloom, K. Devaughan, A. Jonckheere, I. Hall, Jun Guo, G. C. Blazey, Jeroen Hegeman, Freya Blekman, S. Hossain, Y. Vertogradova, A. Lobodenko, Q. Z. Li, Raymond Brock, Boaz Klima, Avto Kharchilava, V. L. Malyshev, Ernest Aguilo, I. Katsanos, S. Desai, V. Siccardi, Petr Vokac, R. Beuselinck, M. Kirsch, Adam L. Lyon, A. Sanchez-Hernandez, N. Oshima, Dmitri Tsybychev, R. L. McCarthy, D. Karmanov, R. K. Mommsen, V. Zutshi, Alexander Kupco, J. K. Lim, G. Alkhazov, D. V. Bandurin, Alexander Khanov, E. De La Cruz-Burelo, Prolay Mal, Daria Zieminska, R. Van Kooten, M. Zielinski, Sudhir Malik, Ia Iashvili, S. Lammers, R. D. Schamberger, T. R. Wyatt, I. Torchiani, Brajesh C Choudhary, A. Magerkurth, R. Yamada, E. E. Boos, J. Hays, R. Otec, M. H.L.S. Wang, D. Duggan, M. D. Corcoran, C. Belanger-Champagne, Andrew Askew, L. Han, Heriberto Castilla-Valdez, B. S. Acharya, Pushpalatha C Bhat, Brigitte Vachon, N. Parua, D. Vilanova, Randy Ruchti, A. Chandra, Ph Gris, M. Anastasoaie, P. Rich, Arnulf Quadt, Elemer Nagy, A. Zieminski, P. Houben, A. A. Shchukin, Andrew Brandt, L. Zivkovic, Aaron Dominguez, W. Geist, A. P. Heinson, Kirti Ranjan, B. Hoeneisen, Lee Sawyer, T. Nunnemann, B. Baldin, V. M. Abazov, C. Jarvis, S. Söldner-Rembold, V. Shary, S. Uvarov, C. De Oliveira Martins, P. N. Ratoff, P. M. Tuts, Maksym Titov, Y. A. Yatsunenko, Frank Fiedler, E. Kajfasz, Carsten Hensel, M. Ćwiok, A. Bellavance, D. Wicke, Dennis Stephen Mackin, Hua-Lei Yin, G. S. Muanza, Mansoora Shamim, M. A. Strang, Viatcheslav Stolin, Yvonne Peters, S. Cihangir, A. Wenger, Michael A. Strauss, M. Arov, Fabrice Couderc, E. Carrera, D. Lam, B. Quinn, Carlos Avila, S. Sumowidagdo, Sabine Crépé-Renaudin, J. A. Parsons, J. Osta, L. S. Vertogradov, Michael Begel, Andre Sopczak, B. Andrieu, Suyong Choi, R. G. Wagner, Marco Verzocchi, C. Magass, Elliott Cheu, Theodoros Christoudias, Dugan O'Neil, E. G. Zverev, M. Cooke, W. L. Prado Da Silva, Jean-Francois Grivaz, T. Schliephake, P. Jonsson, M. Demarteau, P. Haefner, Carmen García, Dorothee Schaile, V. Kaushik, R. E. Hall, Tiefu Zhao, P. Lebrun, C. Schwanenberger, Alice Bean, Victor Daniel Elvira, Thomas Hebbeker, D. Khatidze, Eduardo De Moraes Gregores, A. Patwa, Mark Owen, M. Hohlfeld, Alexander Grohsjean, J. K. Kraus, Lev Uvarov, V. Buescher, Y. Arnoud, P. L.M. Podesta-Lerma, Marcia Begalli, Iain Alexander Bertram, P. Neustroev, Gregorio Bernardi, D. Denisov, Florian Lacroix, Mary Beth Adams, Hal Evans, Thomas Ferbel, Lars Sonnenschein, Norbert Wermes, D. K. Cho, Meenakshi Narain, J. Haley, R. Jesik, Laurent Duflot, M. Rominsky, R. Bernhard, W. E. Cooper, B. Åsman, M. Abolins, Boris Tuchming, P. Renkel, K. A. Johns, Michael Rijssenbeek, S. Zelitch, Brad Abbott, J. D. Degenhardt, Liang Li, C. Ochando, T. Scanlon, C. Potter, Luiz Mundim, Ariel Schwartzman, Lev Dudko, Pierre Petroff, C. Biscarat, S. Kermiche, S. Strandberg, Mikko Voutilainen, Suman Bala Beri, Marc-Andre Pleier, A. V. Ferapontov, Arnaud Duperrin, P. Vint, A. V. Popov, Jong-Sung Yu, N. K. Mondal, Vivian O'Dell, F. Chevallier, H. Nilsen, Gustaaf Brooijmans, V. Cuplov, Hwi Dong Yoo, H. T. Diehl, T. A. Bolton, Zdenek Hubacek, J. Warchol, Y. Pogorelov, A. Boehnlein, A. Juste, T. Dorland, V. N. Evdokimov, S. Schlobohm, Todd Adams, Frederic Deliot, Christopher George Tully, P. A. Kasper, G. Savage, J. Ellison, M. Ahsan, Sa. Jain, S. Fuess, G. Sajot, N. Osman, Y. M. Kharzheev, H. Greenlee, Patrick Slattery, T. Kurca, T. H. Burnett, D. M. Strom, J. A. Benitez, Z. Liu, Y. Hu, D. Edmunds, T. Gadfort, Marc Weber, Ulrich Heintz, S. Calvet, M. S. Rangel, Frank Filthaut, Raimund Ströhmer, V. Simak, M. Diesburg, Y. P. Merekov, A. Bross, A. Tanasijczuk, Andre Sznajder, S. Chakrabarti, P. Padley, R. F. Rodrigues, Yuri Gershtein, M. S. Anzelc, Mitchell Wayne, H. Schellman, J. M. Kohli, Peter Love, Sarah Catherine Eno, Horst Severini, Stefan Grünendahl, G. J. Otero Y Garzón, Junjie Zhu, Reinhard Schwienhorst, A. Rozhdestvenski, B. Gómez, W. Geng, Serban Protopopescu, N. Gollub, Richard B. Lipton, M. C. Cousinou, J. Sekaric, Kristian Harder, Shashikant Dugad, David T. Johnston, D. Cutts, S. Fu, Wagner Carvalho, M. Aoki, Greg Landsberg, G. Hesketh, P. J. Van Den Berg, Marc Besancon, R. J. Madaras, Andy Haas, N. Khalatyan, S. Yacoob, Pedrame Bargassa, K. Soustruznik, N. J. Buchanan, George Alverson, S. Beale, D. Hedin, A. F. Barfuss, V. A. Bezzubov, J. P. Negret, Michael Hildreth, D. Kau, L. Welty-Rieger, S. Uzunyan, Harrison Prosper, Y. Xie, Amnon Harel, J. P. Konrath, H. Dong, D. Buchholz, P. Tamburello, Anna Goussiou, R. K. Shivpuri, D. R. Claes, Gavin Davies, Philippe Calfayan, S. M. Lietti, Y. Scheglov, Kaushik De, Jan Stark, J. Dyer, Henry Lubatti, J. Cammin, Gregory R Snow, J. M. Hauptman, Cecilia Elena Gerber, Benjamin M. Martin, G. Ginther, Jianming Qian, P.F. Ermolov, L. S. Ancu, P. Mättig, Nikos Varelas, R. Illingworth, B. G. Pope, Calvin A. Johnson, Bing Zhou, Luis Mendoza, Elizaveta Shabalina, Timothy Andeen, Stephen Wimpenny, U. Bassler, Martin Grunewald, S. Robinson, Regina Demina, Milos Lokajicek, Y. Enari, T. Moulik, M. Buehler, F. Guo, M. Wetstein, J. G.R. Lima, Grigory Safronov, Darien Wood, Nicholas John Hadley, C. P. Buszello, Mark Richard James Williams, P. Rubinov, S. Blessing, Scott Snyder, H. E. Fisk, E. Strauss, Aran Garcia-Bellido, Sharon Hagopian, A. K.A. Maciel, R. Piegaia, F. Villeneuve-Seguier, A. Alton, Helio Nogima, Jean-Arcady Meyer, L. Bagby, K. M. Chan, Christian Zeitnitz, Emanuela Barberis, Ashok Kumar, Tulika Bose, J. Orduna, and B. Tiller
- Subjects
Physics ,Particle physics ,010308 nuclear & particles physics ,Hyperon ,Tevatron ,General Physics and Astronomy ,Lambda ,7. Clean energy ,01 natural sciences ,Omega ,Baryon ,Nuclear physics ,Particle decay ,Pair production ,0103 physical sciences ,High Energy Physics::Experiment ,Fermilab ,Nuclear Experiment ,010306 general physics - Abstract
We report the observation of the doubly strange b baryon Omega(-)(b) in the decay channel Omega(-)(b) -> J/psi Omega(-), with J/psi -> mu(+)mu(-) and Omega(-) -> Lambda K- -> (p pi(-))K-, in p (p) over bar collisions at root s = 1.96 TeV. Using approximately 1.3 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron Collider, we observe 17.8 +/- 4.9(stat) +/- 0.8(syst) Omega(-)(b) signal events at a mass of 6.165 +/- 0.010(stat) +/- 0.013(syst) GeV. The significance of the observed signal is 5.4 sigma, corresponding to a probability of 6.7 x 10(-8) of it arising from a background fluctuation.
- Published
- 2008
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