Lancaster EPrints

Evidence for an anomalous like-sign dimuon charge asymmetry

Abazov, V. M. and Abbott, B. and Abolins, M. and Acharya, B. S. and Adams, M. and Adams, T. and Aguilo, E. and Alexeev, G. D. and Alkhazov, G. and Alton, A. and Alverson, G. and Alves, G. A. and Ancu, L. S. and Aoki, M. and Arnoud, Y. and Arov, M. and Askew, A. and Asman, B. and Atramentov, O. and Avila, C. and BackusMayes, J. and Badaud, F. and Bagby, L. and Baldin, B. and Bandurin, D. V. and Banerjee, S. and Barberis, E. and Barfuss, A. -F. and Baringer, P. and Barreto, J. and Bartlett, J. F. and Bassler, U. and Beale, S. and Bean, A. and Begalli, M. and Begel, M. and Belanger-Champagne, C. and Bellantoni, L. 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 Blazey, G. 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 Buchholz, D. and Buehler, M. and Buescher, V. and Bunichev, V. and Burdin, S. and Burnett, T. H. and Buszello, C. P. and Calfayan, P. and Calpas, B. and Calvet, S. and Camacho-Perez, E. and Cammin, J. and Carrasco-Lizarraga, M. A. and Carrera, E. and Casey, B. C. K. and Castilla-Valdez, H. and Chakrabarti, S. and Chakraborty, D. and Chan, K. M. and Chandra, A. and Chen, G. and Chevalier-Thery, S. and Cho, D. K. and Cho, S. W. and Choi, S. and Choudhary, B. 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 Croc, A. and Cutts, D. and Cwiok, M. and Das, A. and Davies, G. and De, K. and de Jong, S. J. and De La Cruz-Burelo, E. and Deliot, F. and Demarteau, M. and Demina, R. and Denisov, D. and Denisov, S. P. and Desai, S. and DeVaughan, K. and Diehl, H. T. and Diesburg, M. and Dominguez, A. and Dorland, T. and Dubey, A. and Dudko, L. V. and Duggan, D. and Duperrin, A. and Dutt, S. and Dyshkant, A. and Eads, M. and Edmunds, D. and Ellison, J. and Elvira, V. D. and Enari, Y. and Eno, S. and Evans, H. and Evdokimov, A. and Evdokimov, V. N. and Facini, G. 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 Fuess, S. and Gadfort, T. and Garcia-Bellido, A. and Gavrilov, V. and Gay, P. and Geist, W. and Geng, W. and Gerbaudo, D. and Gerber, C. E. and Gershtein, Y. and Gillberg, D. and Ginther, G. and Golovanov, G. and Goussiou, A. and Grannis, P. D. and Greder, S. 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 Haefner, P. and Hagopian, S. and Haley, J. and Hall, I. and Han, L. and Harder, K. and Harel, A. and Hauptman, J. M. and Hays, J. and Hebbeker, T. and Hedin, D. and Heinson, A. P. and Heintz, U. and Hensel, C. and Heredia-De La Cruz, I. and Herner, K. and Hesketh, G. and Hildreth, M. D. and Hirosky, R. and Hoang, T. and Hobbs, J. D. and Hoeneisen, B. and Hohlfeld, M. and Hossain, S. and Houben, P. and Hu, Y. and Hubacek, Z. and Huske, N. and Hynek, V. and Iashvili, I. and Illingworth, R. and Ito, A. S. and Jabeen, S. and Jaffre, M. and Jain, S. and Jamin, D. 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 Kaadze, K. and Kajfasz, E. and Karmanov, D. and Kasper, P. A. and Katsanos, I. and Kehoe, R. and Kermiche, S. and Khalatyan, N. and Khanov, A. and Kharchilava, A. and Kharzheev, Y. N. and Khatidze, D. and Kirby, M. H. and Kirsch, M. and Kohli, J. M. and Kozelov, A. V. and Kraus, J. and Kumar, A. and Kupco, A. and Kurca, T. and Kuzmin, V. A. and Kvita, J. and Lammers, S. and Landsberg, G. and Lebrun, P. and Lee, H. S. and Lee, W. M. and Lellouch, J. and Li, L. and Li, Q. Z. and Lietti, S. M. and Lim, J. K. 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-Garcia, R. and Lyon, A. L. and Maciel, A. K. A. and Mackin, D. and Madar, R. and Magana-Villalba, R. and Mal, P. K. and Malik, S. and Malyshev, V. L. and Maravin, Y. and Martinez-Ortega, J. and McCarthy, R. and McGivern, C. L. and Meijer, M. M. and Melnitchouk, A. and Menezes, D. and Mercadante, P. G. and Merkin, M. and Meyer, A. and Meyer, J. and Mondal, N. K. and Moulik, T. and Muanza, G. S. and Mulhearn, M. and Nagy, E. and Naimuddin, M. and Narain, M. and Nayyar, R. and Neal, H. A. and Negret, J. P. and Neustroev, P. and Nilsen, H. and Novaes, S. F. and Nunnemann, T. and Obrant, G. and Onoprienko, D. and Orduna, J. and Osman, N. and Osta, J. and otero garzon, G. J. and Owen, M. and Padilla, M. and Pangilinan, M. and Parashar, N. and Parihar, V. and Park, S. -J. and Park, S. K. and Parsons, J. and Partridge, R. and Parua, N. and Patwa, A. and Penning, B. and Perfilov, M. and Peters, K. and Peters, Y. and Petrillo, G. and Petroff, P. and Piegaia, R. and Piper, J. and Pleier, M. -A. and Podesta-Lerma, P. L. M. and Podstavkov, V. M. and Pol, M. -E. and Polozov, P. and Popov, A. V. and Prewitt, M. and Price, D. and Protopopescu, S. and Qian, J. and Quadt, A. and Quinn, B. and Rangel, M. S. and Ranjan, K. and Ratoff, P. N. and Razumov, I. and Renkel, P. and Rich, P. and Rijssenbeek, M. and Ripp-Baudot, I. and Rizatdinova, F. and Rominsky, M. and Royon, C. 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 Schwienhorst, R. and Sekaric, J. and Severini, H. and Shabalina, E. and Shary, V. and Shchukin, A. A. and Shivpuri, R. K. 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 Stolin, V. and Stoyanova, D. A. and Strang, M. A. and Strauss, E. and Strauss, M. and Stroehmer, R. and Strom, D. and Stutte, L. and Svoisky, P. and Takahashi, M. and Tanasijczuk, A. and Taylor, W. and Tiller, B. and Titov, M. and Tokmenin, V. V. 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 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 Verzocchi, M. and Vesterinen, M. and Vilanova, D. and Vint, P. and Vokac, P. 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 Wetstein, M. and White, A. and Wicke, D. and Williams, Mark and Wilson, G. W. and Wimpenny, S. J. and Wobisch, M. and Wood, D. R. and Wyatt, T. R. and Xie, Y. and Xu, C. and Yacoob, S. and Yamada, R. and Yang, W. -C. and Yasuda, T. and Yatsunenko, Y. A. and Ye, Z. and Yin, H. and Yip, K. and Yoo, H. D. and Youn, S. W. and Yu, J. and Zelitch, S. and Zhao, T. and Zhou, B. and Zhu, J. and Zielinski, M. and Zieminska, D. and Zivkovic, L. and , D0 Collaboration (2010) Evidence for an anomalous like-sign dimuon charge asymmetry. Physical Review D, 82 (3). ISSN 1550-7998

[img]
Preview
PDF - Published Version
Download (1329Kb) | Preview

    Abstract

    We measure the charge asymmetry A of like-sign dimuon events in 6.1 fb(-1) of p (p) over bar collisions recorded with the D0 detector at a center-of-mass energy root s = 1.96 TeV at the Fermilab Tevatron collider. From A, we extract the like-sign dimuon charge asymmetry in semileptonic b-hadron decays: A(sl)(b) = -0.00957 +/- 0.00251 (stat) +/- 0.00146 (syst). This result differs by 3.2 standard deviations from the standard model prediction A(sl)(b)(SM) = (-2.3(0.6)(+0.5)) x 10(-4) and provides first evidence of anomalous CP violation in the mixing of neutral B mesons.

    Item Type: Article
    Journal or Publication Title: Physical Review D
    Additional Information: © 2010 The American Physical Society
    Uncontrolled Keywords: MODEL CP-VIOLATION ; BARYON ASYMMETRY ; DETECTOR ; PHYSICS
    Subjects:
    Departments: Faculty of Science and Technology > Physics
    ID Code: 52298
    Deposited By: ep_importer_pure
    Deposited On: 11 Jan 2012 10:24
    Refereed?: Yes
    Published?: Published
    Last Modified: 21 Sep 2017 04:44
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/52298

    Actions (login required)

    View Item