Phys. Rev. D
69,
111101(R)
(2004)
[5 pages]
Search for new particles in the two-jet decay channel with the DØ detector
V.M. Abazov et al. (DØ Collaboration)
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V.M. Abazov21, B. Abbott55, A. Abdesselam11, M. Abolins48, V. Abramov24, B.S. Acharya17, D.L. Adams53, M. Adams35, S.N. Ahmed20, G.D. Alexeev21, A. Alton47, G.A. Alves2, E.W. Anderson40, Y. Arnoud9, C. Avila5, V.V. Babintsev24, L. Babukhadia52, T.C. Bacon26, A. Baden44, S. Baffioni10, B. Baldin34, P.W. Balm19, S. Banerjee17, E. Barberis46, P. Baringer41, J. Barreto2, J.F. Bartlett34, U. Bassler12, D. Bauer38, A. Bean41, F. Beaudette11, M. Begel51, A. Belyaev33, S.B. Beri15, G. Bernardi12, I. Bertram25, A. Besson9, R. Beuselinck26, V.A. Bezzubov24, P.C. Bhat34, V. Bhatnagar15, M. Bhattacharjee52, G. Blazey36, F. Blekman19, S. Blessing33, A. Boehnlein34, N.I. Bojko24, T.A. Bolton42, F. Borcherding34, K. Bos19, T. Bose50, A. Brandt57, G. Briskin56, R. Brock48, G. Brooijmans34, A. Bross34, D. Buchholz37, M. Buehler35, V. Buescher14, V.S. Burtovoi24, J.M. Butler45, F. Canelli51, W. Carvalho3, D. Casey48, H. Castilla-Valdez18, D. Chakraborty36, K.M. Chan51, S.V. Chekulaev24, D.K. Cho51, S. Choi32, S. Chopra53, D. Claes49, A.R. Clark28, B. Connolly33, W.E. Cooper34, D. Coppage41, S. Crépé-Renaudin9, M.A.C. Cummings36, D. Cutts56, H. da Motta2, G.A. Davis51, K. De57, S.J. de Jong20, M. Demarteau34, R. Demina51, P. Demine13, D. Denisov34, S.P. Denisov24, S. Desai52, H.T. Diehl34, M. Diesburg34, S. Doulas46, L.V. Dudko23, S. Duensing20, L. Duflot11, S.R. Dugad17, A. Duperrin10, A. Dyshkant36, D. Edmunds48, J. Ellison32, J.T. Eltzroth57, V.D. Elvira34, R. Engelmann52, S. Eno44, G. Eppley58, P. Ermolov23, O.V. Eroshin24, J. Estrada51, H. Evans50, V.N. Evdokimov24, D. Fein27, T. Ferbel51, F. Filthaut20, H.E. Fisk34, F. Fleuret12, M. Fortner36, H. Fox37, S. Fu50, S. Fuess34, E. Gallas34, A.N. Galyaev24, M. Gao50, V. Gavrilov22, R.J. Genik, II25, K. Genser34, C.E. Gerber35, Y. Gershtein56, G. Ginther51, B. Gómez5, P.I. Goncharov24, H. Gordon53, K. Gounder34, A. Goussiou26, N. Graf53, P.D. Grannis52, J.A. Green40, H. Greenlee34, Z.D. Greenwood43, S. Grinstein1, L. Groer50, S. Grünendahl34, S.N. Gurzhiev24, G. Gutierrez34, P. Gutierrez55, N.J. Hadley44, H. Haggerty34, S. Hagopian33, V. Hagopian33, R.E. Hall30, C. Han47, S. Hansen34, J.M. Hauptman40, C. Hebert41, D. Hedin36, J.M. Heinmiller35, A.P. Heinson32, U. Heintz45, M.D. Hildreth39, R. Hirosky59, J.D. Hobbs52, B. Hoeneisen8, J. Huang38, Y. Huang47, I. Iashvili32, R. Illingworth26, A.S. Ito34, M. Jaffré11, S. Jain17, R. Jesik26, K. Johns27, M. Johnson34, A. Jonckheere34, H. Jöstlein34, A. Juste34, W. Kahl42, S. Kahn53, E. Kajfasz10, A.M. Kalinin21, D. Karmanov23, D. Karmgard39, R. Kehoe48, S. Kesisoglou56, A. Khanov51, A. Kharchilava39, B. Klima34, J.M. Kohli15, A.V. Kostritskiy24, J. Kotcher53, B. Kothari50, A.V. Kozelov24, E.A. Kozlovsky24, J. Krane40, M.R. Krishnaswamy17, P. Krivkova6, S. Krzywdzinski34, M. Kubantsev42, S. Kuleshov22, Y. Kulik34, S. Kunori44, A. Kupco7, V.E. Kuznetsov32, G. Landsberg56, W.M. Lee33, A. Leflat23, F. Lehner34,*, C. Leonidopoulos50, J. Li57, Q.Z. Li34, J.G.R. Lima3, D. Lincoln34, S.L. Linn33, J. Linnemann48, R. Lipton34, A. Lucotte9, L. Lueking34, C. Lundstedt49, C. Luo38, A.K.A. Maciel36, R.J. Madaras28, V.L. Malyshev21, V. Manankov23, H.S. Mao4, T. Marshall38, M.I. Martin36, S.E.K. Mattingly56, A.A. Mayorov24, R. McCarthy52, T. McMahon54, H.L. Melanson34, A. Melnitchouk56, M. Merkin23, K.W. Merritt34, C. Miao56, H. Miettinen58, D. Mihalcea36, N. Mokhov34, N.K. Mondal17, H.E. Montgomery34, R.W. Moore48, Y.D. Mutaf52, E. Nagy10, F. Nang27, M. Narain45, V.S. Narasimham17, N.A. Naumann20, H.A. Neal47, J.P. Negret5, A. Nomerotski34, T. Nunnemann34, D. O’Neil48, V. Oguri3, B. Olivier12, N. Oshima34, P. Padley58, K. Papageorgiou35, N. Parashar43, R. Partridge56, N. Parua52, A. Patwa52, O. Peters19, P. Pétroff11, R. Piegaia1, B.G. Pope48, H.B. Prosper33, S. Protopopescu53, M.B. Przybycien37,†, J. Qian47, R. Raja34, S. Rajagopalan53, P.A. Rapidis34, N.W. Reay42, S. Reucroft46, M. Ridel11, M. Rijssenbeek52, F. Rizatdinova42, T. Rockwell48, C. Royon13, P. Rubinov34, R. Ruchti39, B.M. Sabirov21, G. Sajot9, A. Santoro3, L. Sawyer43, R.D. Schamberger52, H. Schellman37, A. Schwartzman1, E. Shabalina35, R.K. Shivpuri16, D. Shpakov46, M. Shupe27, R.A. Sidwell42, V. Simak7, V. Sirotenko34, P. Slattery51, R.P. Smith34, G.R. Snow49, J. Snow54, S. Snyder53, J. Solomon35, Y. Song57, V. Sorín1, M. Sosebee57, N. Sotnikova23, K. Soustruznik6, M. Souza2, N.R. Stanton42, G. Steinbrück50, D. Stoker31, V. Stolin22, A. Stone43, D.A. Stoyanova24, M.A. Strang57, M. Strauss55, M. Strovink28, L. Stutte34, A. Sznajder3, M. Talby10, W. Taylor52, S. Tentindo-Repond33, S.M. Tripathi29, T.G. Trippe28, A.S. Turcot53, P.M. Tuts50, R. Van Kooten38, V. Vaniev24, N. Varelas35, F. Villeneuve-Seguier10, A.A. Volkov24, A.P. Vorobiev24, H.D. Wahl33, Z.-M. Wang52, J. Warchol39, G. Watts60, M. Wayne39, H. Weerts48, A. White57, D. Whiteson28, D.A. Wijngaarden20, S. Willis36, S.J. Wimpenny32, J. Womersley34, D.R. Wood46, Q. Xu47, R. Yamada34, P. Yamin53, T. Yasuda34, Y.A. Yatsunenko21, K. Yip53, J. Yu57, M. Zanabria5, X. Zhang55, H. Zheng39, B. Zhou47, Z. Zhou40, M. Zielinski51, D. Zieminska38, A. Zieminski38, V. Zutshi36, E.G. Zverev23, and A. Zylberstejn13 (DØ Collaboration)
1Universidad de Buenos Aires, Buenos Aires, Argentina
2LAFEX, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Brazil
3Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
4Institute of High Energy Physics, Beijing, People’s Republic of China
5Universidad de los Andes, Bogotá, Colombia
6Charles University, Center for Particle Physics, Prague, Czech Republic
7Institute of Physics, Academy of Sciences, Center for Particle Physics, Prague, Czech Republic
8Universidad San Francisco de Quito, Quito, Ecuador
9Laboratoire de Physique Subatomique et de Cosmologie, IN2P3-CNRS, Universite de Grenoble 1, Grenoble, France
10CPPM, IN2P3-CNRS, Université de la Méditerranée, Marseille, France
11Laboratoire de l’Accélérateur Linéaire, IN2P3-CNRS, Orsay, France
12LPNHE, Universités Paris VI and VII, IN2P3-CNRS, Paris, France
13DAPNIA/Service de Physique des Particules, CEA, Saclay, France
14Universität Mainz, Institut für Physik, Mainz, Germany
15Panjab University, Chandigarh, India
16Delhi University, Delhi, India
17Tata Institute of Fundamental Research, Mumbai, India
18CINVESTAV, Mexico City, Mexico
19FOM-Institute NIKHEF and University of Amsterdam/NIKHEF, Amsterdam, The Netherlands
20University of Nijmegen/NIKHEF, Nijmegen, The Netherlands
21Joint Institute for Nuclear Research, Dubna, Russia
22Institute for Theoretical and Experimental Physics, Moscow, Russia
23Moscow State University, Moscow, Russia
24Institute for High Energy Physics, Protvino, Russia
25Lancaster University, Lancaster, United Kingdom
26Imperial College, London, United Kingdom
27University of Arizona, Tucson, Arizona 85721, USA
28Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
29University of California, Davis, California 95616, USA
30California State University, Fresno, California 93740, USA
31University of California, Irvine, California 92697, USA
32University of California, Riverside, California 92521, USA
33Florida State University, Tallahassee, Florida 32306, USA
34Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
35University of Illinois at Chicago, Chicago, Illinois 60607, USA
36Northern Illinois University, DeKalb, Illinois 60115, USA
37Northwestern University, Evanston, Illinois 60208, USA
38Indiana University, Bloomington, Indiana 47405, USA
39University of Notre Dame, Notre Dame, Indiana 46556, USA
40Iowa State University, Ames, Iowa 50011, USA
41University of Kansas, Lawrence, Kansas 66045, USA
42Kansas State University, Manhattan, Kansas 66506, USA
43Louisiana Tech University, Ruston, Louisiana 71272, USA
44University of Maryland, College Park, Maryland 20742, USA
45Boston University, Boston, Massachusetts 02215, USA
46Northeastern University, Boston, Massachusetts 02115, USA
47University of Michigan, Ann Arbor, Michigan 48109, USA
48Michigan State University, East Lansing, Michigan 48824, USA
49University of Nebraska, Lincoln, Nebraska 68588, USA
50Columbia University, New York, New York 10027, USA
51University of Rochester, Rochester, New York 14627, USA
52State University of New York, Stony Brook, New York 11794, USA
53Brookhaven National Laboratory, Upton, New York 11973, USA
54Langston University, Langston, Oklahoma 73050, USA
55University of Oklahoma, Norman, Oklahoma 73019, USA
56Brown University, Providence, Rhode Island 02912, USA
57University of Texas, Arlington, Texas 76019, USA
58Rice University, Houston, Texas 77005, USA
59University of Virginia, Charlottesville, Virginia 22901, USA
60University of Washington, Seattle, Washington 98195, USA
Received 13 August 2003; published 2 June 2004
We present the results of a search for the production of new particles decaying into two jets in p̅ p collisions at √s=1.8TeV, using the DØ 1992–1995 data set corresponding to 109 pb-1. We exclude at the 95% confidence level the production of excited quarks (q*) with masses below 775 GeV/c2, the most restrictive limit to date. We also exclude standard-model-like W′ (Z′) bosons with masses between 300 and 800 GeV/c2 (400 and 640 GeV/c2). A W′ boson with mass <786GeV/c2 has been excluded by previous measurements, and our lower limit is therefore the most stringent to date.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.111101
DOI:
10.1103/PhysRevD.69.111101
PACS:
13.85.Rm, 14.70.Pw, 14.80.-j
*Visitor from University of Zurich, Zurich, Switzerland. †Visitor from Institute of Nuclear Physics, Krakow, Poland.
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