Search For Leptoquark Pairs Decaying Into Nu Nu Plus Jets In P(P)Over-Bar Collisions At Tev At Root S=1.8 Tev

V M Abazov, B. Abbott,A. Abdesselam, M. Abolins,V. Abramov,Bannanje Sripath Acharya,D L Adams,M. Adams,Syed Ahmed,G D Alexeev,A. Alton,G A Alves,N. Amos,Evan W Anderson,Y. Arnoud,C. Avila,M M Baarmand,V. Babintsev,L. Babukhadia,T C Bacon, A. Baden, B. Baldin,P W Balm,Sunanda Banerjee,E. Barberis, P. Baringer,J. Barreto,J F Bartlett, U. Bassler,D. Bauer,A. Bean, F. Beaudette,M. Begel,A 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,F. Blekman, S. Blessing,A. Boehnlein,N I Bojko,F. Borcherding, K. Bos,T. Bose,A. Brandt, R. Breedon,G. Briskin,R. Brock,G. Brooijmans, A. Bross,D Bruce Buchholz,M. Buehler,V. Buescher,V S Burtovoi,John Butler,F. Canelli,Wagner Carvalho,D. Casey,Z. Casilum,H. Castilla-Valdez, D. Chakraborty,K M Chan,S V Chekulaev,David Cho,Suyong Choi,S. Chopra,J H Christenson,M C Chung,D. Claes,A R Clark,L. Coney,B. Connolly,W E Cooper,D. Coppage,S. Crépé-Renaudin,M A C Cummings, D. Cutts,Gene Davis,Keith E Davis,K. De,S J De Jong,Kenneth W Del Signore,M. Demarteau, R. Demina,P. Demine,D. Denisov,S P Denisov,S. Desai,H Thomas Diehl, M. Diesburg,S. Doulas,Y. Ducros,L V Dudko,Silke Duensing, L. Duflot,S R Dugad, A. Duperrin, A. Dyshkant, D. Edmunds,J. Ellison,J T Eltzroth,V D Elvira, R. Engelmann, S. Eno,G. Eppley,P. Ermolov,O V Eroshin,Juan Estrada,H. Evans,V N Evdokimov,T. Fahland,S. Feher,D. Fein, T. Ferbel, F. Filthaut,H E Fisk,Y. Fisyak,E. Flattum,Frederic Fleuret, M. Fortner,H. Fox,K C Frame,Shaoyun Fu,S. Fuess, E. Gallas,A N Galyaev,Ming 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. González Solís, H. Gordon,L T Goss,K. Gounder, A. Goussiou,N. Graf,G E Graham,P D Grannis,J A Green, H. Greenlee, Z D Greenwood,S. Grinstein,L. Groer,S. Grünendahl,A. Gupta,S N Gurzhiev,Gustavo Gutierrez,Phillip Gutierrez,N J Hadley, H. Haggerty,S. Hagopian,Vasken Hagopian,R E Hall,P. Hanlet,S. Hansen,J M Hauptman,C. Hays,C L Hebert, D. Hedin,J M Heinmiller,A P Heinson, U. Heintz,M D Hildreth, R. Hirosky,J David Hobbs, B. Hoeneisen,Y Z Huang, I. Iashvili,R. Illingworth,Amando Siuiti Ito,M. Jaffré,Shilpi Jain,R. Jesik, K. Johns,Marvin M Johnson,A. Jonckheere, H. Jöstlein, A. Juste, W. Kahl,S. Kahn, E. Kajfasz,A M Kalinin,D. Karmanov,Daniel John Karmgard,Robert Kehoe, A. Khanov,A. Kharchilava,S H Kim,B. Klima,B. Knuteson,Winston Ko,J M Kohli,A V Kostritskiy,J. Kotcher,B. Kothari,A V Kotwal,A V Kozelov,E A Kozlovsky,Jostein Krane,M R Krishnaswamy,P. Krivkova,S. Krzywdzinski,M A Kubantsev,S. Kuleshov,Y. Kulik, S. Kunori, A. Kupco,Viacheslav Slava Kuznetsov,Greg Landsberg,William Lee, A. Leflat,C. Leggett,F. Lehner, C. Leonidopoulos, J F Li,Q Z Li,X L Li,Jose Guilherme Rocha De Lima,D. Lincoln,Stephan Linn,J. Linnemann,Richard B Lipton, A. Lucotte,L. Lueking,C. Lundstedt,Chengli Luo,A K A Maciel,R J Madaras,V L Malyshev,V. Manankov,H S Mao,T. Marshall,M I Martin,K M Mauritz,A A Mayorov, R. McCarthy,T R Mcmahon,H L Melanson,M. Merkin,K W Merritt,C. Miao, H. Miettinen,D. Mihalcea,C S Mishra,N. Mokhov,N K Mondal,Hugh E Montgomery,R. Moore,M. Mostafa,H. da Motta,E. Nagy,F. Nang, M. Narain,V S Narasimham,N A Naumann,H A Neal,J P Negret,S. Negroni, T. Nunnemann,D. O'Neil, V. Oguri,Bert Olivier,Nagayasu Oshima, P. Padley,Lujun Pan,K. Papageorgiou,Adam Para, N. Parashar,R Bruce Partridge,N. Parua,M. Paterno, A. Patwa,B. Pawlik,J S Perkins,Ole Peters,P. Pétroff, R. Piegaia,B G Pope,E V Popkov,H B Prosper, S. Protopopescu,M. Przybycien,Jianming Qian,Rajendran Raja,S. Rajagopalan,E. Ramberg,P A Rapidis,N W Reay, S. Reucroft,M. Ridel, M. Rijssenbeek, F. Rizatdinova,Thomas K Rockwell,M. Roco,C. Royon, P. Rubinov, R. Ruchti,J P Rutherfoord,B M Sabirov, G. Sajot,Armando Santoro,Lee Sawyer,R D Schamberger, H. Schellman,A. Schwartzman,Niladri Sen, E. Shabalina,R K Shivpuri,D. Shpakov, M A Shupe,R A Sidwell, V. Simak,Hemant Kumar Singh,Jaideep Singh,V. Sirotenko,P. Slattery,E. Smith,Richard W Smith,R. Snihur,G R Snow, J. Snow,S. Snyder,J. Solomon,Y. Song,V. Sorín, M. Sosebee,N. Sotnikova,K. Soustruznik,Moacyr Henrique Gomes E Souza,N R Stanton,Georg Steinbruck,R B Stephens,F. Stichelbaut,D P Stoker, V. Stolin,Alison Stone,D A Stoyanova, M A Strang, M. Strauss,M. Strovink,L. Stutte,A. Sznajder,M. Talby,Wendy Taylor, S. Tentindo-Repond,S M Tripathi,T G Trippe,A S Turcot,P M Tuts,V. Vaniev,R. Van Kooten, N. Varelas,L S Vertogradov,F. Villeneuve-Seguier, A. Volkov,A P Vorobiev,H D Wahl, H W Wang,Z.-M. Wang,Jadwiga Warchol, G. Watts, M. Wayne,Harry Weerts, A. White,J T White, D. Whiteson, D A Wijngaarden,Sarah Willis,S J Wimpenny, J. Womersley,D R Wood,Qinghu Xu,R. Yamada,P. Yamin,T. Yasuda,Y A Yatsunenko,Kenneth W Yip, S. Youssef, J H Yu,Zhengquan Yu,M. Zanabria,Xian Yu Zhang,H Y Zheng, B Q Zhou,Z L Zhou,M. Zielinski, D. Zieminska,A. Zieminski, V. Zutshi,E G Zverev,A. Zylberstejn,Song Yue,Zhu Wang

PHYSICAL REVIEW LETTERS（2002）

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摘要

We present the results of a search for leptoquark (LQ) pairs in (85.2 +/- 3.7) pb(-1) of p (p) over bar collider data collected by the D0 experiment at the Fermilab Tevatron. We observe no evidence for leptoquark production and set a limit on sigma(p (p) over bar -->LQ (LQ) over bar --> nunu + jets) as a function of the mass of the leptoquark (m(LQ)) . Assuming the decay LQ --> nuq, we exclude scalar leptoquarks for m(LQ) < 98 GeV/c(2), and vector leptoquarks for m(LQ) < 200 GeV/c(2) and coupling which produces the minimum cross section, at a 95% confidence level.

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关键词

confidence level,elementary particles,data collection,cross section

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