Location of Repository

Search for first-generation scalar leptoquarks in $p\bar p$ collisions at $sqrt{s}$ = 1.96 TeV

By V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, J.L. Agram, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, S. Anderson, B. Andrieu, Y. Arnoud, A. Askew, B. Asman, O. Atramentov, C. Autermann, C. Avila, F. Badaud, A. Baden, B. Baldin, P.W. Balm, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, S. Beauceron, M. Begel, A. Bellevance, S.B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besancon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, F. Borcherding, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, T.H. Burnett, Emmanuel Busato, J.M. Butler, J. Bystricky, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, L. Chevalier, D.K. Cho, S. Choi, B. Choudhary, T. Christiansen, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, A. Cothenet, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, M. Cristetiu, D. Cutts, H. Da Motta, B. Davies, G.A. Davis, K. De, P. De Jong, S.J. De Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, S. Dean, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, H. Dong, S. Doulas, L.V. Dudko, L. Duflot, S.R. Dugad, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, J.T. Eltzroth, V.D. Elvira, S. Eno, P. Ermolov, O.V. Eroshin, J. Estrada, D. Evans, H. Evans, A. Evdokimov, V.N. Evdokimov, J. Fast, S.N. Fatakia, L. Feligioni, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Fortner, H. Fox, W. Freeman, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, Pascal Gay, D. Gelé, R. Gelhaus, K. Genser, C.E. Gerber, Y. Gershtein, G. Ginther, T. Golling, B. Gomez, K. Gounder, A. Goussiou, P.D. Grannis, S. Greder, H. Greenlee, Z.D. Greenwood, E.M. Gregores, Ph. Gris, J.-F. Grivaz, L. Groer, S. Grünendahl, M.W. Grünewald, S.N. Gurzhiev, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, S. Hagopian, I. Hall, R.E. Hall, C. Han, L. Han, K. Hanagaki, K. Harder, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, J. Huang, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, V. Jain, K. Jakobs, A. Jenkins, R. Jesik, K. Johns, M. Johnson, A. Jonckheere, P. Jonsson, H. Jöstlein, A. Juste, D. Käfer, W. Kahl, S. Kahn, E. Kajfasz, A.M. Kalinin, J. Kalk, D. Karmanov, J. Kasper, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, S. Kesisoglou, A. Khanov, A. Kharchilava, Y.M. Kharzheev, K.H. Kim, B. Klima, M. Klute, J.M. Kohli, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, S. Krywdzinski, S. Kuleshov, Y. Kulik, A. Kumar, S. Kunori, A. Kupco, T. Kurca, S. Lager, N. Lahrichi, G. Landsberg, J. Lazoflores, A.C. Le Bihan, P. Lebrun, S.W. Lee, W.M. Lee, A. Leflat, F. Lehner, C. Leonidopoulos, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, S.L. Linn, J. Linnemann, V.V. Lipaev, R. Lipton, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, H.J. Lubatti, L. Lueking, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, A. Magerkurth, A.M. Magnan, N. Makovec, P.K. Mal, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, S.E.K. Mattingly, A.A. Mayorov, R. McCarthy, R. Mccroskey, D. Meder, H.L. Melanson, A. Melnitchouk, A. Mendes, M. Merkin, K.W. Merritt, A. Meyer, M. Michaut, H. Miettinen, J. Mitrevski, N. Mokhov, J. Molina, N.K. Mondal, R.W. Moore, G.-S. Muanza, M. Mulders, Y.D. Mutaf, E. Nagy, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, S. Nelson, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, E. Nurse, V. O'Dell, D.C. O'Neil, V. Oguri, N. Oliveira, N. Oshima, G.J. Otero Y Garzon, P. Padley, N. Parashar, J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, P.M. Perea, E. Perez, P. Pétroff, M. Petteni, L. Phaf, R. Piegaia, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, B.G. Pope, W.L. Prado Da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, K.J. Rani, P.A. Rapidis, P.N. Ratoff, N.W. Reay, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sanchez-Hernandez, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, H. Schellman, P. Schieferdecker, C. Schmitt, A.A. Schukin, A. Schwartzman, R. Schwienhorst, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, W.D. Shephard, R.K. Shivpuri, D. Shpakov, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, K. Smolek, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, Y. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, N.R. Stanton, J. Stark, J. Steele, G. Steinbrück, K. Stevenson, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, E. Thomas, B. Thooris, M. Tomoto, T. Toole, J. Torborg, S. Towers, T. Trefzger, S. Trincaz-Duvoid, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, R. Van Kooten, W.M. Van Leeuwen, N. Varelas, E.W. Varnes, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, J.-R. Vlimant, E. Von Toerne, M. Vreeswijk, T. Vu Anh, H.D. Wahl, R. Walker, L. Wang, Z.-M. Wang, J. Warchol, M. Warsinsky, G. Watts, M. Wayne, M. Weber, H. Weerts, M. Wegner, N. Wermes, A. White, V. White, D. Whiteson, D. Wicke, D.A. Wijngaarden, G.W. Wilson, S.J. Wimpenny, J. Wittlin, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Q. Xu, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, Y. Yen, K. Yip, S.W. Youn, J. Yu, A. Yurkewicz, A. Zabi, A. Zatserklyaniy, M. Zdrazil, C. Zeitnitz, D. Zhang, X. Zhang, T. Zhao, Z. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, R. Zitoun, V. Zutshi, E.G. Zverev and A. Zylberstejn

Abstract

D0We report on a search for pair production of first-generation scalar leptoquarks (LQ) in ppbar collisions at sqrt(s)=1.96 TeV using an integrated luminosity of 252pb-1 collected at the Fermilab Tevatron collider by the D0 detector. We observe no evidence for LQ production in the topologies arising from LQLQbar->eqeq and LQLQbar->eqnuq, and derive 95% C.L. lower limits on the LQ mass as a function of beta, where beta is the branching fraction for LQ->eq. The limits are 241 and 218 GeV/c2 for beta=1 and 0.5, respectively. These results are combined with those obtained by D0 at sqrt(s)=1.8 TeV, which increases these LQ mass limits to 256 and 234 GeV/c2

Topics: proton-proton inclusive interactions, high-energy elementary particle interactions, semileptonic decays, elementary particle mass, 14.80.-j, 13.85.Rm, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex]
Publisher: American Physical Society
Year: 2005
DOI identifier: 10.1103/PhysRevD.71.071104
OAI identifier: oai:HAL:in2p3-00023534v1
Provided by: Hal-Diderot
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://hal.in2p3.fr/in2p3-0002... (external link)
  • http://hal.in2p3.fr/in2p3-0002... (external link)
  • http://hal.in2p3.fr/in2p3-0002... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.