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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
  • University of Oklahoma
  • IN2P3-CNRS
  • Michigan State University
  • Institute for High Energy Physics
  • Tata Institute of Fundamental Research
  • Brookhaven National Laboratory
  • University of Illinois at Chicago
  • University of Zurich
  • University of Michigan, Ann Arbor
  • Centro Brasileiro de Pesquisas Físicas
  • 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
  • National Institute for Subatomic Physics
  • 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
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  • University of California at Davis
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  • Johannes Gutenberg University Mainz
  • Boston University
  • Universidade do Estado do Rio de Janeiro
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • University of California at Riverside
  • University of Nebraska-Lincoln
  • Lawrence Berkeley National Laboratory
  • University of Notre Dame
  • Radboud University Nijmegen
  • CEA Saclay
  • Lomonosov Moscow State University
  • Rice University
  • University of Arizona
  • Alikhanov 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
  • Czech Academy of Sciences
  • CAS - Institute of High Energy Physics
  • Langston University
  • Institute of Nuclear Physics
  • University of Delhi
  • University of California at Irvine
  • University of Washington
  • Joint Institute for Nuclear Research
  • University of Oklahoma
  • Michigan State University
  • Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
  • University of Michigan, Ann Arbor
  • Iowa State University
  • Stony Brook University
  • Imperial College London
  • Aix-Marseille Université
  • Fermi National Accelerator Laboratory
  • University of Kansas
  • Université Pierre et Marie Curie
  • Indiana University Bloomington
  • Northern Illinois University
  • Columbia University
  • Johannes Gutenberg University Mainz
  • Boston University
  • Lawrence Berkeley National Laboratory
  • Charles University
  • Czech Academy of Sciences
  • Polish Academy of Sciences
  • University of California at Irvine
  • University of Washington

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)147-155
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume581
Issue number3-4
DOIs
StatePublished - Feb 19 2004

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