1. Measurement of the ratio of inclusive cross sectionsσ(pp¯→Z+b−quark jet)/σ(pp¯→Z+jet)ats=1.96 TeV
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Adam L. Lyon, T. Gadfort, R. Hooper, V. Oguri, A. Koubarovsky, J. Hays, Gustaaf Brooijmans, J. Warchol, K. W. Merritt, Laurent Chevalier, Guennadi Borissov, B. Thooris, M. Anastasoaie, M. Sosebee, J. F. Bartlett, W. C. Fisher, Emily Nurse, Elizabeth Gallas, Arnulf Quadt, Elemer Nagy, Graham Wilson, H. da Motta, Thomas Trefzger, J. Kasper, J. M. Hauptman, Cecilia Elena Gerber, G. Ginther, Robert Kehoe, M. Agelou, Stephen Wimpenny, Sung Keun Park, B. Davies, L. Sonnenschein, Jianming Qian, B. G. Pope, Martin Grunewald, V. White, S. Krzywdzinski, M. Abolins, A. Baden, Johannes Elmsheuser, J. T. Eltzroth, P. Neustroev, Freya Blekman, A. M. Magnan, M. Yan, Jonas Strandberg, R. Jesik, K. A. Johns, A. S. Ito, A. Melnitchouk, Andrew White, Neeti Parashar, L. Lueking, S. J. De Jong, N. Parua, S. Chakrabarti, B. Kothari, G. D. Alexeev, Milos Lokajicek, E. De La Cruz-Burelo, M. Zielinski, G. C. Blazey, Y. Yen, Kevin Black, Flera Rizatdinova, J. Coss, R. Yamada, M. Eads, L. Lobo, Lorenzo Feligioni, Pierre-Antoine Delsart, M. Zdrazil, Elizaveta Shabalina, L. S. Vertogradov, Darien Wood, Andrei Nomerotski, M. Doidge, S. W. Youn, E. Von Toerne, P. Demine, Frank Fiedler, E. Kajfasz, N. K. Mondal, P. Schieferdecker, H. T. Diehl, John Hobbs, Jean-Francois Grivaz, S. H. Ahn, Christophe Royon, Andrew Brandt, P. de Jong, Raimund Ströhmer, V. Simak, J. Barreto, M. Kopal, M. Jaffré, Sharon Hagopian, D. Coppage, H. D. Wahl, R. Zitoun, Tuan Vu Anh, D. Edmunds, V. V. Lipaev, P. Jonsson, P. Houben, D. Bauer, T. A. Bolton, Alexandre Zabi, Y. Pogorelov, Suyong Choi, H.E. Miettinen, Carsten Hensel, A. Zylberstejn, D. Whiteson, A. Boehnlein, F. Lehner, P. Verdier, H. Greenlee, C. Han, E. Galyaev, Thomas Hebbeker, M. Mulders, L. Han, T. Christiansen, H. A. Neal, D. Meder, D. Evans, P. Padley, W. D. Shephard, Nicholas John Hadley, G. Alkhazov, Christian Schmitt, S. Blessing, Mary Beth Adams, D. K. Cho, Y. Arnoud, Heriberto Castilla-Valdez, T. Yasuda, George Alverson, S. Nelson, M. H.G. Souza, M. Buehler, R. McCroskey, Andre Sznajder, N. A. Naumann, Dugan O'Neil, E. G. Zverev, Abdenour Lounis, A. Evdokimov, D. Mihalcea, C. De Oliveira Martins, P. N. Ratoff, J. Ellison, P. K. Mal, B. C.K. Casey, Alexander Kupco, A. K.A. Maciel, M. Ahsan, A. Bross, R. Gelhaus, H. E. Montgomery, Sa. Jain, O. Peters, S. E.K. Mattingly, M. Cooke, W. L. Prado Da Silva, J. Gardner, D. Hedin, J. T. Linnemann, Yuri Gershtein, Emmanuelle Perez, K. Yip, N. Xuan, M. Petteni, N. R. Stanton, Mitchell Wayne, H. Schellman, J. M. Kohli, A. Patwa, Denis Gelé, N. M. Cason, S. Fuess, A. Yurkewicz, Scott Snyder, P. A. Rapidis, Ariel Schwartzman, Walter Freeman, J. Kotcher, S. Anderson, Stefan Grünendahl, P. M. Tuts, M. Lynker, A. Jenkins, A. Jonckheere, Serban Protopopescu, Kyoung-Ho Kim, S. Reucroft, Seo Won Lee, D. Käfer, S. Dean, Reinhard Schwienhorst, Michael A. Strauss, U. Bassler, Regina Demina, Mossadek Talby, R. L. McCarthy, Harald Fox, Robert Hirosky, A. M. Kalinin, Andy Haas, A. Bellavance, S. Kesisoglou, V. A. Bezzubov, J. P. Negret, X. F. Song, Markus Klute, Kristian Harder, Stephan Linn, A. Lobodenko, Karel Smolek, P. Skubic, R. Piegaia, F. Villeneuve-Seguier, T. Kurca, Marc Weber, W. Kahl, I. Ripp-Baudot, A. Meyer, W. E. Cooper, Yann Coadou, R. P. Smith, Sophie Trincaz-Duvoid, J. Kozminski, M. Hohlfeld, H. Dong, Michael Hildreth, B. Gómez, Arnaud Duperrin, P. Lebrun, Robert Harrington, Gregorio Bernardi, D. Denisov, J. M. Heinmiller, Hal Evans, Thomas Ferbel, Vivek Jain, V. M. Korablev, Shashikant Dugad, Wendy Taylor, Norbert Wermes, Meenakshi Narain, Sherry Towers, N. Oshima, F. Badaud, Daniel Bloch, Daria Zieminska, Emmanuel Busato, Randy Ruchti, D. Kau, Emanuela Barberis, Kazunori Hanagaki, Dongliang Zhang, J. Zhu, D. Cutts, M. Vaupel, S. Söldner-Rembold, Cris W. Barnes, Jovan Mitrevski, D. Buchholz, Wagner Carvalho, R. D. Schamberger, G. Gutierrez, Y. D. Mutaf, O. Boeriu, I. A. Vasilyev, P. M. Perea, Gilvan Alves, Y. Kulik, K. J. Rani, K. Stevenson, A. Stone, M. P. Sanders, B. Spurlock, Tobias Golling, T. Scanlon, A. Alton, S. Kermiche, J. Lazoflores, Alberto Santoro, Sergio F Novaes, S. Uzunyan, Jong-Sung Yu, L. Stutte, J. G.R. Lima, A.S. Dyshkant, P. Mättig, Y. A. Yatsunenko, Paul Telford, Zeno Dixon Greenwood, Suman Bala Beri, Greg Landsberg, Vivian O'Dell, Nikola Makovec, A. Magerkurth, P. Tamburello, A. Zatserklyaniy, T. Toole, Pushpalatha C Bhat, Harrison Prosper, S. N. Gurzhiev, A. Juste, L. Groer, Todd Adams, Karl Jakobs, Reiner Hauser, R. Illingworth, S. Lager, B. S. Acharya, K. Gounder, J. R. Kalk, O. Atramentov, Anna Goussiou, P. Rubinov, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, A. A. Mayorov, S. Desai, P. Lewis, M. C. Cousinou, J. Snow, Christophe Clement, Sergey Burdin, W. M. Van Leeuwen, Shuichi Kunori, S. P. Denisov, M. Merkin, M. Strovink, Alexander Khanov, S. Uvarov, H. L. Melanson, Viatcheslav Stolin, Yurii Maravin, Vladimir Gavrilov, M. Wegner, J. Molina, S. J. Hong, S.A. Kahn, K. M. Chan, Christian Zeitnitz, B. Quinn, F. Charles, H. E. Fisk, J. Dyer, Gregory R Snow, A. Leflat, V. M. Abazov, V. Shary, Christos Leonidopoulos, Cristina Galea, J. Womersley, G. Savage, M. Demarteau, Carmen García, J. Torborg, S. Fu, R. Bernhard, D. A. Wijngaarden, Pedrame Bargassa, S. Tentindo-Repond, K. Soustruznik, Marcel Vreeswijk, N. J. Buchanan, J. Wittlin, Gordon Watts, V. Sirotenko, S. Greder, Nikos Varelas, Bing Zhou, P.F. Ermolov, Carlos Avila, S. Sumowidagdo, Sabine Crépé-Renaudin, Makoto Tomoto, Alice Bean, Iain Alexander Bertram, F. Borcherding, A. C. Le Bihan, Michael Rijssenbeek, Tiefu Zhao, G. Steinbrück, Juan Estrada, G. Sajot, A. A. Schukin, T. Edwards, M. Wobisch, Aran Garcia-Bellido, K. Genser, Stephanie Beauceron, M. M. Kado, Raymond Brock, Boaz Klima, N. Oliveira, D. R. Claes, Gavin Davies, G. Hesketh, K. Bos, Marc Besancon, J. Temple, Ulrike Blumenschein, Philip Baringer, M. Cristetiu, Tulika Bose, O. V. Eroshin, Y. Song, Vipin Bhatnagar, D. Karmanov, Q. Xu, S. Jabeen, D. Wicke, P. L.M. Podesta-Lerma, V. N. Evdokimov, R. Beuselinck, S. Banerjee, S. Doulas, I. Hall, A. Chandra, Jean-Laurent Agram, L. Christofek, Phillip Gutierrez, Lev Uvarov, Kaushik De, R. J. Madaras, J. Fast, N. Lahrichi, R. Partridge, X. Zhang, Q. Z. Li, C. Noeding, Sarah Catherine Eno, D. Chapin, Horst Severini, Brad Abbott, I. Blackler, Christian Autermann, Pierre Petroff, M. Verzocchi, M. A. Strang, Richard B. Lipton, J. A. Parsons, V. L. Malyshev, Jan Stark, R. Van Kooten, H. S. Mao, M. D. Corcoran, R. W. Moore, J. N. Butler, Henry Lubatti, E. Thomas, P. D. Grannis, H. Weerts, Michael Martens, Z. M. Wang, M. Binder, J. Bystricky, A. Zieminski, J. Steele, S. Sengupta, J. Huang, A. Cothenet, R. A. Sidwell, Marvin Johnson, M. Warsinsky, A. Sanchez-Hernandez, S. N. Fatakia, Jaebeom Park, A. V. Kozelov, V. M. Podstavkov, V. Zutshi, M. Fortner, B. Clement, N. W. Reay, Andrew Askew, Zhengguo Zhao, Brigitte Vachon, D. Shpakov, T. Nunnemann, B. Baldin, Mansoora Shamim, W. M. Lee, A. Kharchilava, Andre Sopczak, Sergey Kuleshov, B. Andrieu, Elliott Cheu, Victor Daniel Elvira, Y. Hu, Ph Gris, M. B. Przybycien, V. Buescher, Sudhir Malik, Ia Iashvili, Jean-Roch Vlimant, Rodney Walker, D. A. Stoyanova, A. S. Turcot, D. Chakraborty, Michael Begel, Don Lincoln, Erich Varnes, Eduardo De Moraes Gregores, P. W. Balm, G. A. Davis, Boris Tuchming, Limin Wang, T. H. Burnett, Ulrich Heintz, H. Jöstlein, Frank Filthaut, M. Diesburg, Jing Li, L. Duflot, L. Phaf, N.V. Mokhov, B. Åsman, Frederic Deliot, Christopher George Tully, A. P. Heinson, Y. M. Kharzheev, Patrick Slattery, G. J. Otero y Garzón, G. S. Muanza, R. E. Hall, and Terry Richard Wyatt
- Subjects
Quark ,Nuclear and High Energy Physics ,Particle physics ,Astrophysics::High Energy Astrophysical Phenomena ,Hadron ,Tevatron ,General Physics and Astronomy ,Elementary particle ,7. Clean energy ,01 natural sciences ,Bottom quark ,Standard Model ,law.invention ,Nuclear physics ,law ,0103 physical sciences ,Nuclear Experiment ,010306 general physics ,Collider ,Boson ,Physics ,Jet (fluid) ,Muon ,010308 nuclear & particles physics ,High Energy Physics::Phenomenology ,Pseudorapidity ,High Energy Physics::Experiment ,Lepton - Abstract
The ratio of the cross section for $p\bar{p}$ interactions producing a $Z$ boson and at least one $b$ quark jet to the inclusive $Z+{\rm jet}$ cross section is measured using $4.2\ {\rm fb}^{-1}$ of $p\bar{p}$ collisions collected with the \dzero\ detector at the Fermilab Tevatron collider at $\sqrt{s}=1.96$ TeV. The $Z\rightarrow\ell^+\ell^-$ candidate events with at least one $b$ jet are discriminated from $Z+$ charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is $0.0193\pm0.0027$ for events having a jet with transverse momentum $\pt > 20 \GeV$ and pseudorapidity $|\eta| \leq 2.5$, which is the most precise to date and is consistent with theoretical predictions.
- Published
- 2011
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