Search for squarks and gluinos in single-photon events with jets and large missing transverse energy 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,Hiroaki Aihara,Gelio A. Alves,Nissim A. Amos,Eknest W. Anderson,Richard V. Astur,Marc M. Baarmand,V. V. Babintsev,Levan R. Babukhadia,Andrew R. Baden,V. Balamurali,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,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,Spencer Chang,S. V. Chekulaev,L. P. Chen,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,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,V. N. Evdokimov,T. Fahland,M. K. Fatyga,Sándor Fehér,David K. Fein, T. Ferbel,Guido Finocchiaro,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,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,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,Hu Ting,Hu Tong,T. Huehn,A. S. Ito,Eric James,J. Jaques,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,George R. Kalbfleisch,D. E. Karmanov,Daniel J. Karmgard,Robert L. Kehoe,M. L. Kelly,Sunkee Kim,Boaz Klima,C. Klopfenstein,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,Sergey V. Kuleshov, S. Kunori,F. Landry,Greg L. Landsberg,Bruce M. Lauer,Alexander K. Leflat,Jing Li,Q. Z. Li-Demarteau,J. G R Lima,Don W. Lincoln,Stephan L. Linn,James T. Linnemann,Ronald J. Lipton,Frederick Lobkowicz,Stewart C. Loken,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,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,E. C. Oliveira,E. Oltman,N. Oshima,Daniel P. Owen,Paul Padley,Adam Para,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,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,Michael A. Shupe,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,Anthony L. Spadafora,Georg Steinbrück,Robert W. Stephens,M. Lynn Stevenson,D. P. Stewart,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,Thomas G. Trippe,P. Michael Tuts,V. S. Vaniev,Nikos Varelas,Erich W. Varnes,D. Vititoe,A. A. Volkov,A. P. Vorobiev,Heinrich D. Wahl,G. 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,Eunil Won, D. R. Wood,Ziyu Wu,Heng Xu,Ryuji Yamada,Peter Yamin,Takahiro Yasuda,Pablo P. Yepes,Kin Yip,C. Yoshikawa,Saul P. Youssef,Jaehoon Yu,YoungJun Yu,BingXin Zhang,Y. Zhou,Zhaoqun Zhou,Z. H. Zhu,Marek Zieliński,Daria Ziemińska,Andrzej Ziemiński,E. G. Zverev,Armand Zylberstejn

Physical Review Letters（1999）

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摘要

We search for new physics using events with one high transverse energy photon, two or more jets, and an apparent imbalance in transverse energy, in pp̄ collisions at the Fermilab Tevatron at √s = 1.8 TeV. Such events are predicted for production of supersymmetric particles in some models. No excess is observed beyond expected background. For the parameter space of the minimal supersymmetric standard model with branching fraction B(χ̃2 0 → γχ̃1 0) = 1 and mχ̃2 0 - mχ̃1 0 > 20 GeV, we obtain a 95% confidence level lower mass limit of 310 GeV for equal mass squarks and gluinos. The results are also interpreted in models with low energy gauge mediated supersymmetry breaking.

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