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Search for 3- and 4-body decays of the scalar top quark in pp̄ collisions at √s=1.8 TeV

  • V. M. Abazov
  • , B. Abbott
  • , A. Abdesselam
  • , M. Abolins
  • , V. Abramov
  • , B. S. Acharya
  • , D. L. Adams
  • , M. Adams
  • , S. N. Ahmed
  • , G. D. Alexeev
  • , A. Alton
  • , G. A. Alves
  • , E. W. Anderson
  • , Y. Arnoud
  • , C. Avila
  • , V. V. Babintsev
  • , L. Babukhadia
  • , T. C. Bacon
  • , A. Baden
  • , S. Baffioni
  • B. Baldin, P. W. Balm, S. Banerjee, E. Barberis, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, A. Bean, F. Beaudette, M. Begel, A. Belyaev, S. B. Beri, G. Bernardi, I. Bertram, A. Besson, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, M. Bhattacharjee, G. Blazey, F. Blekman, S. Blessing, A. Boehnlein, N. I. Bojko, T. A. Bolton, F. Borcherding, K. Bos, T. Bose, A. Brandt, R. Breedon, G. Briskin, R. Brock, G. Brooijmans, A. Bross, D. Buchholz, M. Buehler, V. Buescher, V. S. Burtovoi, J. M. Butler, F. Canelli, W. Carvalho, D. Casey, H. Castilla-Valdez, D. Chakraborty, K. M. Chan, S. V. Chekulaev, D. K. Cho, S. Choi, S. Chopra, D. Claes, A. R. Clark, L. Coney, B. Connolly, W. E. Cooper, D. Coppage, S. Crépé-Renaudin, M. A.C. Cummings, D. Cutts, H. da Motta, G. A. Davis, K. De, S. J. de Jong, M. Demarteau, R. Demina, P. Demine, D. Denisov, S. P. Denisov, S. Desai, H. T. Diehl, M. Diesburg, S. Doulas, L. V. Dudko, S. Duensing, L. Duflot, S. R. Dugad, A. Duperrin, A. Dyshkant, D. Edmunds, J. Ellison, J. T. Eltzroth, V. D. Elvira, R. Engelmann, S. Eno, G. Eppley, P. Ermolov, O. V. Eroshin, J. Estrada, H. Evans, V. N. Evdokimov, D. Fein, T. Ferbel, F. Filthaut, H. E. Fisk, F. Fleuret, M. Fortner, H. Fox, S. Fu, S. Fuess, E. Gallas, A. N. Galyaev, M. Gao, V. Gavrilov, R. J. Genik, K. Genser, C. E. Gerber, Y. Gershtein, G. Ginther, B. Gómez, P. I. Goncharov, H. Gordon, K. Gounder, A. Goussiou, N. Graf, P. D. Grannis, J. A. Green, H. Greenlee, Z. D. Greenwood, S. Grinstein, L. Groer, S. Grünendahl, S. N. Gurzhiev, G. Gutierrez, P. Gutierrez, N. J. Hadley, H. Haggerty, S. Hagopian, V. Hagopian, R. E. Hall, C. Han, S. Hansen, J. M. Hauptman, C. Hebert, D. Hedin, J. M. Heinmiller, A. P. Heinson, U. Heintz, M. D. Hildreth, R. Hirosky, J. D. Hobbs, B. Hoeneisen, J. Huang, Y. Huang, I. Iashvili, R. Illingworth, A. S. Ito, M. Jaffré, S. Jain, R. Jesik, K. Johns, M. Johnson, A. Jonckheere, H. Jöstlein, A. Juste, W. Kahl, S. Kahn, E. Kajfasz, A. M. Kalinin, D. Karmanov, D. Karmgard, R. Kehoe, A. Khanov, A. Kharchilava, B. Klima, W. Ko, J. M. Kohli, A. V. Kostritskiy, J. Kotcher, B. Kothari, A. V. Kozelov, E. A. Kozlovsky, J. Krane, M. R. Krishnaswamy, P. Krivkova, S. Krzywdzinski, M. Kubantsev, S. Kuleshov, Y. Kulik, S. Kunori, A. Kupco, V. E. Kuznetsov, G. Landsberg, W. M. Lee, A. Leflat, F. Lehner, C. Leonidopoulos, J. Li, Q. Z. Li, J. G.R. Lima, D. Lincoln, S. L. Linn, J. Linnemann, R. Lipton, A. Lucotte, L. Lueking, C. Lundstedt, C. LUO, A. K.A. Maciel, R. J. Madaras, V. L. Malyshev, V. Manankov, H. S. Mao, T. Marshall, M. I. Martin, A. A. Mayorov, R. McCarthy, T. McMahon, H. L. Melanson, M. Merkin, K. W. Merritt, C. Miao, H. Miettinen, D. Mihalcea, N. Mokhov, N. K. Mondal, H. E. Montgomery, R. W. Moore, Y. D. Mutaf, E. Nagy, F. Nang, M. Narain, V. S. Narasimham, N. A. Naumann, H. A. Neal, J. P. Negret, A. Nomerotski, T. Nunnemann, D. O'Neil, V. Oguri, B. Olivier, N. Oshima, P. Padley, K. Papageorgiou, N. Parashar, R. Partridge, N. Parua, A. Patwa, O. Peters, P. Pétroff, R. Piegaia, B. G. Pope, E. Popkov, H. B. Prosper, S. Protopopescu, M. B. Przybycien, J. Qian, R. Raja, S. Rajagopalan, P. A. Rapidis, N. W. Reay, S. Reucroft, M. Ridel, M. Rijssenbeek, F. Rizatdinova, T. Rockwell, C. Royon, P. Rubinov, R. Ruchti, B. M. Sabirov, G. Sajot, A. Santoro, L. Sawyer, R. D. Schamberger, H. Schellman, A. Schwartzman, E. Shabalina, R. K. Shivpuri, D. Shpakov, M. Shupe, R. A. Sidwell, V. Simak, V. Sirotenko, P. Slattery, R. P. Smith, G. R. Snow, J. Snow, S. Snyder, J. Solomon, Y. Song, V. Sorín, M. Sosebee, N. Sotnikova, K. Soustruznik, M. Souza, N. R. Stanton, G. Steinbrück, D. Stoker, V. Stolin, A. Stone, D. A. Stoyanova, M. A. Strang, M. Strauss, M. Strovink, L. Stutte, A. Sznajder, M. Talby, W. Taylor, S. Tentindo-Repond, S. M. Tripathi, T. G. Trippe, A. S. Turcot, P. M. Tuts, R. Van Kooten, V. Vaniev, N. Varelas, F. Villeneuve-Seguier, A. A. Volkov, A. P. Vorobiev, H. D. Wahl, Z. M. Wang, J. Warchol, G. Watts, M. Wayne, H. Weerts, A. White, D. Whiteson, D. A. Wijngaarden, S. Willis, S. J. Wimpenny, J. Womersley, D. R. Wood, Q. Xu, R. Yamada, P. Yamin, T. Yasuda, Y. A. Yatsunenko, K. Yip, S. Youssef, J. Yu, M. Zanabria, X. Zhang, H. Zheng, B. Zhou, Z. Zhou, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, E. G. Zverev, A. Zylberstejn
  • Joint Institute for Nuclear Research, Dubna
  • University of Oklahoma
  • Université Paris-Sud
  • Michigan State University
  • Kurchatov Institute
  • Tata Institute of Fundamental Research, Mumbai
  • Brookhaven National Laboratory
  • University of Illinois at Chicago
  • University of Zurich
  • University of Michigan, Ann Arbor
  • Centro Brasileiro de Pesquisas Fisicas
  • Iowa State University
  • Universidad de Los Andes, Colombia
  • Stony Brook University
  • Imperial College London
  • University of Maryland, College Park
  • Aix-Marseille Université
  • Fermi National Accelerator Laboratory
  • Science Park 105
  • Northeastern University
  • University of Kansas
  • Universités Paris VI and VII
  • Indiana University Bloomington
  • University of Rochester
  • Florida State University
  • Panjab University
  • Lancaster University
  • Northern Illinois University
  • Kansas State University
  • Columbia University
  • University of Texas at Arlington
  • University of California, Davis
  • Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
  • Northwestern University
  • Johannes Gutenberg University
  • Boston University
  • Rua São Francisco de Xavier
  • CINVESTAV-IPN
  • University of California, Riverside
  • University of Nebraska-Lincoln
  • Ernest Orlando Lawrence Berkeley National Laboratory
  • University of Notre Dame
  • Radboud University
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Moscow State University
  • Rice University
  • University of Arizona
  • Institute for Theoretical and Experimental Physics
  • Louisiana Tech University
  • Universidad de Buenos Aires
  • California State University, Fresno
  • University of Virginia
  • Universidad San Francisco de Quito
  • Charles University
  • Institute of Physics of the Czech Academy of Sciences
  • Institute of High Energy Physics, Chinese Academy of Sciences
  • Langston University
  • Institute for Nuclear Physics
  • University of Delhi
  • Long Beach VA and University of California
  • University of Washington

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

We have searched for the signature of 3- and 4-body decays of pair-produced scalar top quarks (stop) in the inclusive final state containing an electron, a muon, and significant missing transverse energy using a sample of pp̄ events corresponding to 108.3 pb-1 of data collected with the DØ detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the neutralino (χ̃10) is the lightest supersymmetric particle and is stable. No evidence for a signal is found and we derive cross-section upper limits as a function of stop (t̃) and neutralino masses in different decay scenarios leading to the bℓνχ̃10 final state.

langue originaleAnglais
Pages (de - à)147-155
Nombre de pages9
journalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume581
Numéro de publication3-4
Les DOIs
étatPublié - 19 févr. 2004
Modification externeOui

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