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Search for first-generation scalar and vector leptoquarks

  • 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
  • , L. Babukhadia
  • , 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, 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. Crépé-Renaudin, M. A.C. Cummings, D. Cutts, G. A. Davis, K. Davis, K. De, S. J. Jong, K. Del Signore, M. Demarteau, R. Demina, P. Demine, D. Denisov, S. P. Denisov, S. Desai, H. T. Diehl, M. Diesburg, G. Loreto, S. Doulas, P. Draper, 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. Gómez, G. Gómez, P. I. Goncharov, J. L. González Solís, H. Gordon, L. T. Goss, K. Gounder, A. Goussiou, N. Graf, G. Graham, P. D. Grannis, J. A. Green, H. Greenlee, S. Grinstein, L. Groer, S. Grünendahl, A. Gupta, S. N. Gurzhiev, 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. Jaffré, S. Jain, R. Jesik, K. Johns, M. Johnson, A. Jonckheere, M. Jones, H. Jöstlein, 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, 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, R. D. 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. 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. Pétroff, 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, 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. Sorín, M. Sosebee, N. Sotnikova, K. Soustruznik, M. Souza, N. R. Stanton, G. Steinbrück, 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, P. van Gemmeren, V. Vaniev, R. Van Kooten, N. Varelas, L. S. Vertogradov, F. Villeneuve-Seguier, A. A. Volkov, A. P. Vorobiev, H. D. Wahl, H. Wang, Z. 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, R. Yamada, P. Yamin, T. Yasuda, Y. A. Yatsunenko, K. Yip, S. Youssef, J. Yu, Z. Yu, M. Zanabria, H. Zheng, Z. Zhou, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, E. G. Zverev, A. Zylberstejn
*Corresponding author for this work
  • Joint Institute for Nuclear Research, Dubna
  • University of Oklahoma Bioengineering Center
  • IN2P3-CNRS
  • Michigan State University
  • Institute for High Energy Physics
  • Tata Institute of Fundamental Research, Mumbai
  • University of Texas at Arlington
  • University of Illinois at Chicago
  • Radboud University
  • Centro Brasileiro de Pesquisas Fisicas
  • University of Michigan, Ann Arbor
  • Iowa State University
  • Stony Brook University
  • Imperial College London
  • University of Maryland, College Park
  • Fermi National Accelerator Laboratory
  • FOM-Institute NIKHEF and University of Amsterdam/NIKHEF
  • Lawrence Berkeley National Laboratory
  • University of Kansas
  • Universités Paris VI and VII
  • University of Rochester
  • Florida State University
  • Panjab University
  • Lancaster University
  • Northern Illinois University
  • University of California, Davis
  • Brown University
  • Northwestern University
  • 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
  • Brookhaven National Laboratory
  • University of Nebraska-Lincoln
  • University of Notre Dame
  • University of Arizona
  • Kansas State University
  • Northeastern University
  • CEA Saclay
  • Lomonosov Moscow State University
  • Aix-Marseille Université
  • Rice University
  • Columbia University
  • University of California at Irvine
  • Institute for Theoretical and Experimental Physics
  • Universidad de los Andes Colombia
  • Texas AandM University
  • Universidad de Buenos Aires
  • California State University, Fresno
  • University of Virginia
  • University of Hawaiʻi at Mānoa
  • Institute of High Energy Physics Chinese Academy of Science
  • Seoul National University
  • Charles University
  • Czech Academy of Sciences
  • Indiana University Bloomington
  • Langston University
  • Institute of Nuclear Physics Polish Academy of Sciences
  • Louisiana Tech University
  • University of Delhi
  • University of Washington

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We describe a search for the pair production of first-generation scalar and vector leptoquarks in the [Formula Presented] and [Formula Presented] channels by the DØ Collaboration. The data are from the 1992–1996 [Formula Presented] run at [Formula Presented] at the Fermilab Tevatron collider. We find no evidence for leptoquark production; in addition, no kinematically interesting events are observed using relaxed selection criteria. The results from the [Formula Presented] and [Formula Presented] channels are combined with those from a previous DØ analysis of the [Formula Presented] channel to obtain 95% confidence level (C.L.) upper limits on the leptoquark pair-production cross section as a function of mass and of [Formula Presented] the branching fraction to a charged lepton. These limits are compared to next-to-leading-order theory to set 95% C.L. lower limits on the mass of a first-generation scalar leptoquark of 225, 204, and 79 [Formula Presented] for [Formula Presented] [Formula Presented] and 0, respectively. For vector leptoquarks with gauge (Yang-Mills) couplings, 95% C.L. lower limits of 345, 337, and 206 [Formula Presented] are set on the mass for [Formula Presented] [Formula Presented] and 0, respectively. Mass limits for vector leptoquarks are also set for anomalous vector couplings.

Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume64
Issue number9
DOIs
StatePublished - 2001

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