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Observation of the doubly strange b baryon Omega(-)(b)

Abazov, V. M. and Abbott, B. and Abolins, M. and Acharya, B. S. and Adams, M. and Adams, T. and Aguilo, E. and Ahsan, M. and Alexeev, G. D. and Alkhazov, G. and Alton, A. and Alverson, G. and Alves, G. A. and Anastasoaie, M. and Ancu, L. S. and Andeen, T. and Andrieu, B. and Anzelc, M. S. and Aoki, M. and Arnoud, Y. and Arov, M. and Arthaud, M. and Askew, A. and Asman, B. and Assis Jesus, A. C. S. and Atramentov, O. and Avila, C. and Badaud, F. and Bagby, L. and Baldin, B. and Bandurin, D. V. and Banerjee, P. and Banerjee, S. and Barberis, E. and Barfuss, A. -F. and Bargassa, P. and Baringer, P. and Barreto, J. and Bartlett, J. F. and Bassler, U. and Bauer, D. and Beale, S. and Bean, A. and Begalli, M. and Begel, M. and Belanger-Champagne, C. and Bellantoni, L. and Bellavance, A. and Benitez, J. A. and Beri, S. B. and Bernardi, G. and Bernhard, R. and Bertram, I. and Besancon, M. and Beuselinck, R. and Bezzubov, V. A. and Bhat, P. C. and Bhatnagar, V. and Biscarat, C. and Blazey, G. and Blekman, F. and Blessing, S. and Bloom, K. and Boehnlein, A. and Boline, D. and Bolton, T. A. and Boos, E. E. and Borissov, G. and Bose, T. and Brandt, A. and Brock, R. and Brooijmans, G. and Bross, A. and Brown, D. and Bu, X. B. and Buchanan, N. J. and Buchholz, D. and Buehler, M. and Buescher, V. and Bunichev, V. and Burdin, S. and Burnett, T. H. and Buszello, C. P. and Butler, J. M. and Calfayan, P. and Calvet, S. and Cammin, J. and Carrera, E. and Carvalho, W. and Casey, B. C. K. and Castilla-Valdez, H. and Chakrabarti, S. and Chakraborty, D. and Chan, K. M. and Chandra, A. and Cheu, E. and Chevallier, F. and Cho, D. K. and Choi, S. and Choudhary, B. and Christofek, L. and Christoudias, T. and Cihangir, S. and Claes, D. and Clutter, J. and Cooke, M. and Cooper, W. E. and Corcoran, M. and Couderc, F. and Cousinou, M. -C. and Crepe-Renaudin, S. and Cuplov, V. and Cutts, D. and Cwiok, M. and da Motta, H. and Das, A. and Davies, G. and De, K. and de Jong, S. J. and De La Cruz-Burelo, E. and De Oliveira Martins, C. and DeVaughan, K. and Degenhardt, J. D. and Deliot, F. and Demarteau, M. and Demina, R. and Denisov, D. and Denisov, S. P. and Desai, S. and Diehl, H. T. and Diesburg, M. and Dominguez, A. and Dong, H. and Dorland, T. and Dubey, A. and Dudko, L. V. and Duflot, L. and Dugad, S. R. and Duggan, D. and Duperrin, A. and Dyer, J. and Dyshkant, A. and Eads, M. and Edmunds, D. and Ellison, J. and Elvira, V. D. and Enari, Y. and Eno, S. and Ermolov, P. and Evans, H. and Evdokimov, A. and Evdokimov, V. N. and Ferapontov, A. V. and Ferbel, T. and Fiedler, F. and Filthaut, F. and Fisher, W. and Fisk, H. E. and Fortner, M. and Fox, H. and Fu, S. and Fuess, S. and Gadfort, T. and Galea, C. F. and Garcia, C. and Garcia-Bellido, A. and Gavrilov, V. and Gay, P. and Geist, W. and Geng, W. and Gerber, C. E. and Gershtein, Y. and Gillberg, D. and Ginther, G. and Gollub, N. and Gomez, B. and Goussiou, A. and Grannis, P. D. and Greenlee, H. and Greenwood, Z. D. and Gregores, E. M. and Grenier, G. and Gris, Ph. and Grivaz, J. -F. and Grohsjean, A. and Gruenendahl, S. and Gruenewald, M. W. and Guo, F. and Guo, J. and Gutierrez, G. and Gutierrez, P. and Haas, A. and Hadley, N. J. and Haefner, P. and Hagopian, S. and Haley, J. and Hall, I. and Hall, R. E. and Han, L. and Harder, K. and Harel, A. and Hauptman, J. M. and Hays, J. and Hebbeker, T. and Hedin, D. and Hegeman, J. G. and Heinson, A. P. and Heintz, U. and Hensel, C. and Herner, K. and Hesketh, G. and Hildreth, M. D. and Hirosky, R. and Hobbs, J. D. and Hoeneisen, B. and Hoeth, H. and Hohlfeld, M. and Hossain, S. and Houben, P. and Hu, Y. and Hubacek, Z. and Hynek, V. and Iashvili, I. and Illingworth, R. and Ito, A. S. and Jabeen, S. and Jaffre, M. and Jain, S. and Jakobs, K. and Jarvis, C. and Jesik, R. and Johns, K. and Johnson, C. and Johnson, M. and Johnston, D. and Jonckheere, A. and Jonsson, P. and Juste, A. and Kajfasz, E. and Kalk, J. M. and Karmanov, D. and Kasper, P. A. and Katsanos, I. and Kau, D. and Kaushik, V. and Kehoe, R. and Kermiche, S. and Khalatyan, N. and Khanov, A. and Kharchilava, A. and Kharzheev, Y. M. and Khatidze, D. and Kim, T. J. and Kirby, M. H. and Kirsch, M. and Klima, B. and Kohli, J. M. and Komissarov, E. V. and Konrath, J. -P. and Kozelov, A. V. and Kraus, J. and Kuhl, T. and Kumar, A. and Kupco, A. and Kurca, T. and Kuzmin, V. A. and Kvita, J. and Lacroix, F. and Lam, D. and Lammers, S. and Landsberg, G. and Lebrun, P. and Lee, W. M. and Leflat, A. and Lellouch, J. and Li, J. and Li, L. and Li, Q. Z. and Lietti, S. M. and Lim, J. K. and Lima, J. G. R. and Lincoln, D. and Linnemann, J. and Lipaev, V. V. and Lipton, R. and Liu, Y. and Liu, Z. and Lobodenko, A. and Lokajicek, M. and Love, P. and Lubatti, H. J. and Luna, R. and Lyon, A. L. and Maciel, A. K. A. and Mackin, D. and Madaras, R. J. and Maettig, P. and Magass, C. and Magerkurth, A. and Mal, P. K. and Malbouisson, H. B. and Malik, S. and Malyshev, V. L. and Maravin, Y. and Martin, B. and McCarthy, R. and Melnitchouk, A. and Mendoza, L. and Mercadante, P. G. and Merekov, Y. P. and Merkin, M. and Merritt, K. W. and Meyer, A. and Meyer, J. and Mitrevski, J. and Mommsen, R. K. and Mondal, N. K. and Moore, R. W. and Moulik, T. and Muanza, G. S. and Mulhearn, M. and Mundal, O. and Mundim, L. and Nagy, E. and Naimuddin, M. and Narain, M. and Naumann, N. A. and Neal, H. A. and Negret, J. P. and Neustroev, P. and Nilsen, H. and Nogima, H. and Novaes, S. F. and Nunnemann, T. and O'Dell, V. and O'Neil, D. C. and Obrant, G. and Ochando, C. and Onoprienko, D. and Orduna, J. and Oshima, N. and Osman, N. and Osta, J. and Otec, R. and Otero y Garzon, G. J. and Owen, M. and Padley, P. and Pangilinan, M. and Parashar, N. and Park, S. J. and Park, S. K. and Parsons, J. and Partridge, R. and Parua, N. and Patwa, A. and Pawloski, G. and Penning, B. and Perfilov, M. and Peters, K. and Peters, Y. and Petroff, P. and Petteni, M. and Piegaia, R. and Piper, J. and Pleier, M. -A. and Podesta-Lerma, P. L. M. and Podstavkov, V. M. and Pogorelov, Y. and Pol, M. -E. and Polozov, P. and Pope, B. G. and Popov, A. V. and Potter, C. and Prado da Silva, W. L. and Prosper, H. B. and Protopopescu, S. and Qian, J. and Quadt, A. and Quinn, B. and Rakitine, A. and Rangel, M. S. and Ranjan, K. and Ratoff, P. N. and Renkel, P. and Rich, P. and Rieger, J. and Rijssenbeek, M. and Ripp-Baudot, I. and Rizatdinova, F. and Robinson, S. and Rodrigues, R. F. and Rominsky, M. and Royon, C. and Rozhdestvenski, A. and Rubinov, P. and Ruchti, R. and Safronov, G. and Sajot, G. and Sanchez-Hernandez, A. and Sanders, M. P. and Sanghi, B. and Savage, G. and Sawyer, L. and Scanlon, T. and Schaile, D. and Schamberger, R. D. and Scheglov, Y. and Schellman, H. and Schliephake, T. and Schlobohm, S. and Schwanenberger, C. and Schwartzman, A. and Schwienhorst, R. and Sekaric, J. and Severini, H. and Shabalina, E. and Shamim, M. and Shary, V. and Shchukin, A. A. and Shivpuri, R. K. and Siccardi, V. and Simak, V. and Sirotenko, V. and Skubic, P. and Slattery, P. and Smirnov, D. and Snow, G. R. and Snow, J. and Snyder, S. and Soeldner-Rembold, S. and Sonnenschein, L. and Sopczak, A. and Sosebee, M. and Soustruznik, K. and Spurlock, B. and Stark, J. and Steele, J. and Stolin, V. and Stoyanova, D. A. and Strandberg, J. and Strandberg, S. and Strang, M. A. and Strauss, E. and Strauss, M. and Stroehmer, R. and Strom, D. and Stutte, L. and Sumowidagdo, S. and Svoisky, P. and Sznajder, A. and Tamburello, P. and Tanasijczuk, A. and Taylor, W. and Tiller, B. and Tissandier, F. and Titov, M. and Tokmenin, V. V. and Torchiani, I. and Tsybychev, D. and Tuchming, B. and Tully, C. and Tuts, P. M. and Unalan, R. and Uvarov, L. and Uvarov, S. and Uzunyan, S. and Vachon, B. and van den Berg, P. J. and Van Kooten, R. and van Leeuwen, W. M. and Varelas, N. and Varnes, E. W. and Vasilyev, I. A. and Verdier, P. and Vertogradov, L. S. and Vertogradova, Y. and Verzocchi, M. and Vilanova, D. and Villeneuve-Seguier, F. and Vint, P. and Vokac, P. and Voutilainen, M. and Wagner, R. and Wahl, H. D. and Wang, M. H. L. S. and Warchol, J. and Watts, G. and Wayne, M. and Weber, G. and Weber, M. and Welty-Rieger, L. and Wenger, A. and Wermes, N. and Wetstein, M. and White, A. and Wicke, D. and Williams, M. and Wilson, G. W. and Wimpenny, S. J. and Wobisch, M. and Wood, D. R. and Wyatt, T. R. and Xie, Y. and Yacoob, S. and Yamada, R. and Yang, W. C. and Yasuda, T. and Yatsunenko, Y. A. and Yin, H. and Yip, K. and Yoo, H. D. and Youn, S. W. and Yu, J. and Zeitnitz, C. and Zelitch, S. and Zhao, T. and Zhou, B. and Zhu, J. and Zielinski, M. and Zieminska, D. and Zieminski, A. and Zivkovic, L. and Zutshi, V. and Zverev, E. G. and , D0 Collaboration (2008) Observation of the doubly strange b baryon Omega(-)(b). Physical review letters, 101 (23). ISSN 0031-9007

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    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.

    Item Type: Article
    Journal or Publication Title: Physical review letters
    Additional Information: © 2008 The American Physical Society
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 57795
    Deposited By: ep_importer_pure
    Deposited On: 20 Sep 2012 01:10
    Refereed?: Yes
    Published?: Published
    Last Modified: 21 Sep 2017 05:10
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/57795

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