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Search for the scalar top quark in $p\bar p$ collisions at $\sqrt s$ = 1.8 TeV

V.M. Abazov B. Abbott Abdelmalek 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 1 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 2 D. Bauer A. Bean F. Beaudette 3 M. Begel A. Belyaev S.B. Beri G. Bernardi 2 I. Bertram A. Besson 1 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 1 D. Denisov S.P. Denisov S. Desai H.T. Diehl M. Diesburg S. Doulas Y. Ducros L.V. Dudko S. Duensing L. Duflot 3 S.R. Dugad A. Duperrin 4 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 Anupam Gupta S.N. Gurzhev G. Gutierrez P. Gutierrez N.J. Hadley H. Haggerty S. Hagopian V. Hagopian R.E. Hall P. Hanlet Scott Hansen J.M. Hauptman C. Hays Christian Hebert D. Hedin J.M. Heinmiller A.P. Heinson U. Heintz T. Heuring M.D. Hildreth R. Hirosky J.D. Hobbs B. Hoeneisen Yue Huang R. Illingworth A.S. Ito M. Jaffre 3 S. Jain R. Jesik K. Johns M. Johnson A. Jonckheere M. Jones H. Jostlein A. Juste W. Kahl S. Kahn E. Kajfasz 4 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 Xiaojian Li D. Lincoln S.L. Linn J. Linnemann R. Lipton A. Lucotte 1 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 4 F. Nang M. Narain V.S. Narasimham H.A. Neal J.P. Negret S. Negroni 4 T. Nunnemann D. O'Neil V. Oguri B. Olivier 2 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 3 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 1 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 4 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 4 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
Abstract : 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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Submitted on : Friday, May 17, 2002 - 4:03:51 PM
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V.M. Abazov, B. Abbott, Abdelmalek Abdesselam, M. Abolins, V. Abramov, et al.. Search for the scalar top quark in $p\bar p$ collisions at $\sqrt s$ = 1.8 TeV. Physical Review Letters, American Physical Society, 2002, 88, pp.171802. ⟨in2p3-00011448⟩

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