Search for narrow $t\bar t$ resonances in $p\barp$ collisions at $\sqrt s$ = 1.8 TeV

V.M. Abazov B. Abbott Abdelmalek Abdesselam 1 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 2 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 1 M. Begel A. Belyaev S.B. Beri G. Bernardi I. Bertram A. Besson 2 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 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 B. Connolly W.E. Cooper D. Coppage S. Crepe-Renaudin 2 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 1 S.R. Dugad A. Duperrin 3 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 Ii K. Genser C.E. Gerber Y. Gershtein G. Ginther B. Gomez 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. Grunendahl S.N. Gurzhev G. Gutierrez P. Gutierrez N.J. Hadley H. Haggerty S. Hagopian V. Hagopian R.E. Hall C. Han Scott Hansen J.M. Hauptman Christian Hebert D. Hedin J.M. Heinmiller A.P. Heinson U. Heintz M.D. Hildreth R. Hirosky J.D. Hobbs B. Hoeneisen J. Huang Yue Huang I. Iashvili R. Illingworth A.S. Ito M. Jaffre 1 S. Jain R. Jesik K. Johns M. Johnson A. Jonckheere H. Jostlein A. Juste W. Kahl S. Kahn E. Kajfasz 3 A.M. Kalinin D. Karmanov D. Karmgard R. Kehoe A. Khanov A. Kharchilava B. Klima 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 D. Lincoln S.L. Linn J. Linnemann R. Lipton A. Lucotte 2 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 3 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. Petroff 1 R. Piegaia B.G. Pope H.B. Prosper S. Protopopescu M.B. Przybycien J. Qian R. Raja S. Rajagopalan P.A. Rapidis N.W. Reay S. Reucroft M. Ridel 1 M. Rijssenbeek F. Rizatdinova T. Rockwell C. Royon P. Rubinov R. Ruchti B.M. Sabirov G. Sajot 2 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. Sorn M. Sosebee N. Sotnikova K. Soustruznik M. Souza N.R. Stanton G. Steinbruck D. Stoker V. Stolin A. Stone D.A. Stoyanova M.A. Strang M. Strauss M. Strovink L. Stutte A. Sznajder M. Talby 3 W. Taylor S. Tentindo-Repond S.M. Tripathi T.G. Trippe A.S. Turcot P.M. Tuts R. van Kooten V. Vanev N. Varelas F. Villeneuve-Seguier 3 A.A. Volkov A.P. Vorobev 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 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
1 LAL - Laboratoire de l'Accélérateur Linéaire
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 CPPM - Centre de Physique des Particules de Marseille
Abstract : A search for narrow resonances that decay into t-tbar pairs has been performed using 130 pb^{-1} of data in the lepton+jets channel collected in p-pbar collisions at \sqrt{s} = 1.8 TeV. There is no significant deviation observed from the standard model, and upper limits at the 95 % confidence level on the product of the production cross section and branching fraction to t-tbar are presented for narrow resonances as a function of the resonance mass M_X. These limits are used to exclude the existence of a leptophobic topcolor particle with mass M_X < 560 GeV/c^2 and width \Gamma_X = 0.012 M_X.
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V.M. Abazov, B. Abbott, Abdelmalek Abdesselam, M. Abolins, V. Abramov, et al.. Search for narrow $t\bar t$ resonances in $p\barp$ collisions at $\sqrt s$ = 1.8 TeV. Physical Review Letters, American Physical Society, 2004, 92, 221801-(6 p.). ⟨in2p3-00021886⟩

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