Search for the scalar top quark in $par p$ collisions at $sqrt s$ = 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, G.A. Alves,N. Amos,E.W. Anderson,Y. Arnoud, M.M. Baarmand, V.V. Babintsev,T.C. Bacon, A. Baden, 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,S. Blessing, A. Boehnlein, N.I. Bojko,F. Borcherding,K. Bos,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, Z. Casilum, H. Castilla-Valdez,D. Chakraborty,K.M. Chan,S.V. Chekulaev,D.K. Cho, S. Choi,S. Chopra, J.H. Christenson,M. Chung, D. Claes, A.R. Clark, J. Cochran,L. Coney,B. Connolly,W.E. Cooper, D. Coppage, S. Crepe-Renaudin, D. Cutts, G.A. Davis,K. Davis, K. De,S.J. De Jong,K. Del Signore, M. Demarteau, R. Demina,P. Demine,D. Denisov, S.P. Denisov,S. Desai,H.T. Diehl, M. Diesburg, S. Doulas,Y. Ducros, L.V. Dudko,S. Duensing, L. Duflot, S.R. Dugad, A. Duperrin,A. Dyshkant, D. Edmunds, J. Ellison, V.D. Elvira, R. Engelmann, S. Eno, G. Eppley, P. Ermolov, O.V. Eroshin,J. Estrada,H. Evans, V.N. Evdokimov,T. Fahland,S. Feher,D. Fein, T. Ferbel, F. Filthaut,H.E. Fisk, Y. Fisyak, E. Flattum,F. Fleuret, M. Fortner,H. Fox, K.C. Frame, S. Fu, S. Fuess, E. Gallas,A.N. Galyaev,M. Gao, V. Gavrilov, R.J. Genik, K. Genser, C.E. Gerber, Y. Gershtein, R. Gilmartin, G. Ginther,B. Gomez,G. Gomez, P.I. Goncharov,J.L. Gonzalez Solis, H. Gordon, L.T. Goss, K. Gounder, A. Goussiou, N. Graf,G. Graham,P.D. Grannis, J.A. Green, H. Greenlee, Z.D. Greenwood,S. Grinstein, L. Groer, S. Grunendahl, A. Gupta,S.N. Gurzhev, G. Gutierrez,P. Gutierrez, N.J. Hadley, H. Haggerty, S. Hagopian, V. Hagopian,R.E. Hall, P. Hanlet,S. Hansen,J.M. Hauptman,C. Hays,C. Hebert, D. Hedin,J.M. Heinmiller, A.P. Heinson, U. Heintz, T. Heuring,M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen,Y. Huang,R. Illingworth, A.S. Ito, M. Jaffre, S. Jain, R. Jesik, K. Johns, M. Johnson, A. Jonckheere,M. Jones, H. Jostlein, A. Juste, W. Kahl,S. Kahn, E. Kajfasz,A.M. Kalinin, D. Karmanov,D. Karmgard,Z. Ke, R. Kehoe, A. Khanov, A. Kharchilava,S.K. Kim, B. Klima,B. Knuteson,W. Ko,J.M. Kohli, A.V. Kostritskiy, J. Kotcher, B. Kothari, A.V. Kotwal, 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, C. Leggett,F. Lehner, J. Li, Q.Z. Li,X. Li,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, K.M. Mauritz,B. May,A.A. Mayorov, R. Mccarthy,T. Mcmahon,H.L. Melanson, M. Merkin, K.W. Merritt,C. Miao, H. Miettinen,D. Mihalcea, C.S. Mishra,N. Mokhov,N.K. Mondal,H.E. Montgomery,R.W. Moore,M. Mostafa,H. Da Motta,E. Nagy, F. Nang,M. Narain,V.S. Narasimham,H.A. Neal,J.P. Negret, S. Negroni, T. Nunnemann,D. O'Neil,V. Oguri,B. Olivier, N. Oshima, P. Padley, L.J. Pan, K. Papageorgiou, A. Para, N. Parashar, R. Partridge, N. Parua,M. Paterno, A. Patwa,B. Pawlik,J. Perkins,M. Peters,O. Peters,P. Petroff, R. Piegaia,B.G. Pope, E. Popkov, H.B. Prosper, S. Protopopescu, J. Qian,R. Raja, S. Rajagopalan, E. Ramberg,P.A. Rapidis,N.W. Reay, S. Reucroft, M. Ridel, M. Rijssenbeek, F. Rizatdinova,T. Rockwell, M. Roco,C. Royon, P. Rubinov, R. Ruchti, J. Rutherfoord,B.M. Sabirov, G. Sajot, A. Santoro,L. Sawyer, R.D. Schamberger,H. Schellman,A. Schwartzman,N. Sen, E. Shabalina,R.K. Shivpuri, D. Shpakov, M. Shupe, R.A. Sidwell,V. Simak,H. Singh,J.B. Singh,V. Sirotenko, P. Slattery,E. Smith, R.P. Smith, R. Snihur, G.R. Snow,J. Snow,S. Snyder,J. Solomon,V. Sorin,M. Sosebee,N. Sotnikova,K. Soustruznik,M. Souza,N.R. Stanton, G. Steinbruck, R.W. Stephens,F. Stichelbaut,D. Stoker,V. Stolin,A. Stone,D.A. Stoyanova,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, V. Vanev,R. Van Kooten, N. Varelas,L.S. Vertogradov, F. Villeneuve-Seguier,A.A. Volkov, A.P. Vorobev,H.D. Wahl,H. Wang,Z.M. Wang, J. Warchol, G. Watts, M. Wayne, H. Weerts,A. White,J.T. White, D. Whiteson,J.A. Wightman, 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,Z. Yu, M. Zanabria,X. Zhang,H. Zheng,B. Zhou,Z. Zhou, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi,E.G. Zverev, A. Zylberstejn
Physical Review Letters（2002）
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摘要
We have performed a search for scalar top quark (stop) pair production in the inclusive electron-muon-missing transverse energy final state, using a sample of $p \bar{p}$ events corresponding to 108.3 pb$^{-1}$ of data collected with the D{\O}detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the sneutrino is the lightest supersymmetric particle. For the dominant decays of the lightest stop, $\bc$ and $\bls$, no evidence for signal is found. We derive cross-section limits as a function of stop (\stt), chargino (\ca), and sneutrino (\snu) masses.
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