Search for second generation leptoquark pairs decaying to μν + jets in pp̄ collisions at √s = 1.8 TeV

Brad K. Abbott,Maris A. Abolins,V. V. Abramov,Bobby Samir Acharya,I. Adam,D. L. Adams,M. R. Adams,Sangun Ahn,V. A. Akimov,Gelio A. Alves,Nissim A. Amos,Eknest W. Anderson,Marc M. Baarmand,V. V. Babintsev,Levan R. Babukhadia,Andrew R. Baden,Boris Yu Baldin,Sw W. Banerjee,J. Bantly,Emanuela Barbëris,Philip S. Baringer,J. F. Bartlett,Alexander V. Belyaev,Suman B. Beri,Iain A. Bertram,V. A. Bezzubov,Priya C. Bhat,V. Bhatnagar,Mrinmoy Bhattacharjee,Nripendra N. Biswas,Gerald C. Blazey,Susan K. Blessing,P. C. Bloom,Amber Boehnlein,N. I. Bojko,Fred O. Borcherding,Chris Boswell,Achi E. Brandt,Richard E. Breedon,G. Briskin,Raymond J. Brock,Alan D. Bross,Donald Bruce Buchholz,V. S. Burtovoi,John M. Butler,Washington R. Carvalho,D. Casey,Z. Casilum,H. Castilla-Valdez,Dhiman Chakraborty, S. V. Chekulaev,W. Chen,Seonho Choi,Sonalee Chopra,Brajesh Chandra Choudhary,J. H. Christenson,Manho Chung,Dan R. Claes,Alan R. Clark,W. G. Cobau,James Cochran,Linda R. Coney,W. E. Cooper,D. Coppage,C. Cretsinger,D. Cullen-Vidal,Mary Anne Clare Cummings,David Ćutts,Orin I. Dahl,Kevin L. Davis,Kaushik De,K. W. Del Signore,Marcel Demarteau,D. S. Denisov,Sergey P. Denisov,H. Thomas Diehl, M. Diesburg,G. di Loreto,Paul A. Draper,Yves Ducros, L. V. Dudko,Shashikant R. Dugad,Alexander S. Dyshkant,Daniel L. Edmunds,John A. Ellison,V. Daniel Elvira,R. J. Engelmann,Sarah C. Eno,G. Eppley,P. F. Ermolov.,O. V. Eroshin,Harold G. Evans,V. N. Evdokimov,T. Fahland,M. K. Fatyga,Sándor Fehér,David K. Fein, T. Ferbel,H. Eugene Fisk,Yu V. Fisyak,Eric Flattum,G. E. Forden,Michael R. Fortner,K. C. Frame,Stuart Fuess,Elizabeth J. Gallas,A. N. Galyaev,P. Gartung,V. B. Gavrilov,T. L. Geld,Richard J. Genik,Krzysztof Genser,Cecilia E. Gerber,Yu S. Gershtein,Bruce G. Gibbard,Barbara Gobbi,B. Gómez,Gervasio Gómez,P. I. Goncharov,J. L. González Solís,Howard A. Gordon,L. T. Goss,Krishnaswamy N. Gounder,A. G. Goussiou,Norman A. Graf,Paul D. Grannis,Daniel R. Green,J. A. Green,Herbert B. Greenlee,Sebastian L Y Grinstein,Peter M. Grudberg,Stefan Grünendahl,Gerald M. Guglielmo,Joan A. Guida,Jan M. Guida,Ambreesh K. Gupta,S. N. Gurzhiev,Gaston Gutiérrez,Phillip Gutierrez,NJ J. Hadley,Herman Haggerty,Stephanie L. Hagopian,Vasken Hagopian, K. S. Hahn,Raymond E. Hall,Pierrick M. Hanlet,Sten B. Hansen,John M. Hauptman,Christopher P. Hays,C. J D Hébert,David Hedin,Ann P. Heinson,Ulrich Heintz, R. R. Hernández-Montoya,T. Heuring,Robert J. Hirosky,John D. Hobbs,B. Hoeneisen,Jan S. Hoftun,F. Hsieh,Tong Hu,A. S. Ito,S. A. Jerger,Rick Jesik,T. Joffe-Minor,Ken A. Johns,Marvin E. Johnson,A. M. Jonckheere,Michael D. Jones,Hans Jöstlein,Soonyung Jun,Changkee Jung,Stephen Alan Kahn,D. E. Karmanov,Daniel J. Karmgard,Robert L. Kehoe,Sunkee Kim,Boaz Klima,C. Klopfenstein,Bruce Knuteson,Winston Ko, J. M. Kohli,David Stanley Koltick,A. V. Kostritskiy,J. Kotcher,Ashutosh V. Kotwal,A. V. Kozelov,E. A. Kozlovsky,John Krane,M. R. Krishnaswamy,S. Krzywdzinski,M. A. Kubantsev,Sergey V. Kuleshov,Yu O. Kulik, S. Kunori,F. Landry,Greg L. Landsberg,Alexander K. Leflat,Jia Li,Qizhong Li,J. G R Lima,Don W. Lincoln,Stephan L. Linn,James T. Linnemann,Ronald J. Lipton,Arnaud Lucotte,Lee H. Lueking,Adam L. Lyon,Arthur K A MacIel,Ronald J. Madaras,Robert P. Madden,L. Magaña-Mendoza,V. M. Manankov,Seethambal S. Mani,Huishun Mao,Richard Markeloff,Thomas R. Marshall,Manuel I. Martin,Ryan D. Martin,Kristal M. Mauritz,B. May,A. A. Mayorov,Robert L. McCarthy,Jeffrey E R McDonald,T. McKibben,J. D. McKinley,TJ J. McMahon,H. L. Melanson,M. M. Merkin,K. W B Merritt,Chyichiang Miao,Hannu E. Miettinen,A. I. Mincer,C. Shekhar Mishra,Nikolai V. Mokhov,Naba Kumar Mondal, H. E. Montgomery,P. Mooney,Miguel A. Mostafá,H. Da Motta,C. T. Murphy,F. Nang,Meenakshi Narain,V. S. Narasimham,A. Narayanan,Homer A. Neal,J. P. Negret,Peter Némethy,D. J P Norman,L. H. Oesch, V. Oguri,N. Oshima,Daniel P. Owen,Paul Padley,Adam Para,Neeti D. Parashar,Y. M. Park,Richard A. Partridge,Nirmalya Parua,M. Paterno,B. Pawlik,J. Perkins,Michael W. Peters, R. Piegaia,Henryk Piekarz,Yu M. Pischalnikov,B. G. Pope,Harrison Bertrand Prosper,Serban D. Protopopescu,Jun Qian,P. Z. Quintas,Rajendran Raja,Sudhir Rajagopalan,Oscar M. Ramirez,Neville W. Reay,Stephen Reucroft,Michael Rijssenbeek,T. Rockwell,Maria Teresa P Roco, P. Rubinov,Randal C. Ruchti,John P. Rutherfoord,Alberto Sánchez-Hernández,Alberto F S Santoro,Lee Sawyer,R. Dean Schamberger,Heidi M. Schellman,J. Sculli,Elizaveta K. Shabalina,C. Shaffer,H. C. Shankar,Rajiv K. Shivpuri,Dennis V. Shpakov,Michael A. Shupe,Ronald A. Sidwell,Harmeet Singh,Jaivir B. Singh,Vladimir I. Sirotenko,Eric H. Smith,Richard P. Smith,R. Snihur,Gregory R. Snow,James M. Snow,Scott S. Snyder,Julius Solomon,Mark Sosebee,N. A. Sotnikova,M. H G Souza,Noel R. Stanton,Georg Steinbrück,Robert W. Stephens,M. Lynn Stevenson,Frédéric Stichelbaut,David P. Stoker,V. L. Stolin,Dina A. Stoyanova,M. G. Strauss,K. Streets,Mark Strovink,Andre A. Sznajder,P. Tamburello, J. Tarazi,Michael A. Tartaglia,Tina L T Thomas,J. M. Thompson,David Toback,Thomas G. Trippe,P. Michael Tuts,V. S. Vaniev,Nikos Varelas,Erich W. Varnes,A. A. Volkov,A. P. Vorobiev,Heinrich D. Wahl,Gang Wang, J. Warchol,Gordon Watts,Mitchell R. Wayne,Hendrik Weerts,Andrew P. White,James T. White,J. A. Wightman,Suzanne E. Willis,Stephen J. Wimpenny,J. V D Wirjawan,John Womersley, D. R. Wood,Ryuji Yamada,Peter Yamin,Takahiro Yasuda,Pablo P. Yepes,Kin Yip,C. Yoshikawa,Saul P. Youssef,Jaehoon Yu,YoungJun Yu,BingXin Zhang,Zhaoqun Zhou,Z. H. Zhu,Marek Zieliński,Daria Ziemińska,Andrzej Ziemiński, V. Zutshi,E. G. Zverev,Armand Zylberstejn

Physical Review Letters（1999）

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摘要

We report on a search for second generation leptoquarks (LQ) produced in pp̄ collisions at √s = 1.8 TeV using the D0 detector at Fermilab. Second generation leptoquarks are assumed to be produced in pairs and to decay to either μ or ν and either a strange or a charm quark (q). Limits are placed on σ(pp̄ → LQLQ → μν + jets) as a function of the mass of the leptoquark. For equal branching ratios to μq and νq, second generation scalar leptoquarks with a mass below 160 GeV/c2, vector leptoquarks with anomalous minimal vector couplings with a mass below 240 GeV/c2, and vector leptoquarks with Yang-Mills couplings with a mass below 290 GeV/c2, are excluded at the 95% confidence level. © 1999 The American Physical Society.

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