Search for gluinos and scalar quarks in pp collisions at square root[s] = 1.8 TeV using the missing energy plus multijets signature.

B J Kim ,K Kelley,K Burkett,V Glagolev,P Calafiura,M Gallinaro,F Ptohos,A Robinson,A Scott,R Oishi,D Errede,V Nagaslaev,K Karr,I Vila,M Schmitt,J Boudreau,S Vejcik,D Tonelli,W Hao,H Wenzel,R Moore,J Nachtman,G Bolla,A Clark,T Kamon,J Wolinski,J Kroll,L Lyons,S Tether,D Carlsmith,M Jones,R Miller,G Velev,D Bisello,R Vilar,A Beretvas,A Akopian,M Shimojima,P Giannetti,I Fiori,J Spalding,T Kaneko,A Sansoni,F Rimondi,G Martignon,L Scodellaro,J Loken,P Sphicas,S Leone,Y Kato,R Kephart,R Rossin,A Bhatti,A Dominguez,M Bishai,C Hill,K Pitts,S Donati,P Gatti,L Demortier,P Sinervo,J Cranshaw,D Partos,T Lecompte,F Hartmann,P Schlabach,O Pukhov,P Mcintyre,R Erbacher,D Saltzberg,G Introzzi,R Roser,D Toback,L Pescara,D Amidei,A Byon-Wagner,M Guenther,K Bloom,G Piacentino,M Popovic,M Kirk,M Tanaka,G Bauer,M Shochet,R Vidal,K Hara,L Ristori,G Grim,T Yoshida,S Errede,W Riegler,S Baroiant,F Dejongh,W Bokhari,M Von Der Mey,G Latino,Y Iwata,C Wang,L Christofek,D Bortoletto,K Einsweiler,P Koehn,P Lukens,W Trischuk,O Lobban,A Connolly,E Engels,B Blumenfeld,C Blocker,D Khazins,T Shibayama,A Yagil,P Tipton,G Punzi,C Haber,M Riveline,G Chlachidze,C Hall,K Tollefson,K Sumorok,F Ukegawa,Y Morita,H Kasha,G Pope,S Bailey,J Huth,J Valls,J Wyss,L Pondrom,G Apollinari,I Gorelov,T Arisawa,D Benjamin,L Rosenson,A Sidoti,M Shapiro,H Frisch,M Chertok,M Mishina,B Kilminster,J Siegrist,M Mangano,T Suzuki,R Handler,J Steele,N Bacchetta,S Wolbers,M Binkley,Y Gotra,I Volobouev,S Galeotti,M Deninno,Y Fukui,J Olsen,K Maeshima,A Bocci,J Done,J Tseng,M Campbell,T Dorigo,R Hollebeek,M Paulini,K Kondo,C Smith,A Roy,S Nahn,G Guillian,A Korn,D Reher,H Kambara,M Franklin,T Devlin,H Nakada,H Toyoda,Y Seiya,R Cropp,A Reichold,N Turini,K Lee,M Lindgren,D Cauz,F Spinella,T Vaiciulis,N Bruner,T Asakawa,S Miscetti,J Iwai,L Spiegel,P Singh,J Carlson,W Ashmanskas,F Azfar,N Lai,F Chlebana,M Garcia-Sciveres,P Amaral,S Zucchelli,X Wu,D Waters,M Menguzzato,B Flaugher,J Hauser,T Takano,A Bodek,J Freeman,C Grosso-Pilcher,D Glenzinski,P Murat,R Takashima,K Terashi,T Miao,E Buckley-Geer,E James,S Waschke,T Watts,F Palmonari,F Ratnikov,J Lancaster,C Paus,M Mulhearn,S Van Den Brink,R Webb,H Ikeda,T Moulik,W Caskey,D Dagenhart,M Kirby,C Pagliarone,L Kirsch,M Loreti,I Yu,P Tamburello,D Lucchesi,J Huston,T Wilkes,P Savard,A Gallas,P Wilson,B Tannenbaum,M Barone,J Conway,S Cabrera,U Joshi,J Proudfoot,S Lammel,C Newman-Holmes,A Mukherjee,D Neuberger,S Belforte,L Nodulman,H Bachacou,A Menzione,M Gold,M Albrow,J Chapman,A Cerri,J Incandela,T Handa,F Happacher,S Blusk,H Sato,A Munar,A Artikov,A Lath,C Bromberg,A Ribon,N Eddy,L Groer,S Segler,T Kuwabara,F Prokoshin,A Tollestrup,M Herndon,J Strologas,K Anikeev,C Chen,Y Bonushkin,M Cordelli,K Hatakeyama,C Neu,C Yosef,A Sill,J Heinrich,E Wicklund,A Rakitine,F Zetti,T Speer,D Wolinski,E Brubaker,A Zanetti,W Orejudos,M Mariotti,T Ohmoto,J Yoh,J Dittmann,S Lami,M Tecchio,T Okusawa,J Budagov,H Akimoto,G Bellettini,A Barbaro-Galtieri,G Pauletta,A Castro,S Murgia,S Tkaczyk,S Lusin,A Brandl,G Chiarelli,G Veramendi,N Moggi,C Ferretti,V Papadimitriou,A Nomerotski,J Mayer,H Minato,R Lander,K Kurino,S Klimenko,F Strumia,W Carithers,D Winn,K Sliwa,A Meyer,T Rodrigo,G Busetto,A Stefanini,M Spiropulu,P Giromini,L Santi,T Kikuchi,G Mitselmakher,J Patrick,D Vucinic,D Stuart,K Goulianos,T Ohsugi,J Lys,A Safonov,J Bellinger,R Madrak,C Green,J Goldstein,L Malferrari,Q Fan,A Ruiz,T Shah,C Mesropian,J Friedman,I Nakano,A Semenov,R Paoletti,M Lancaster,R Culbertson,K Takikawa,P Mazzanti,J Matthews,S Rolli,A Korytov,A Solodsky,F Bedeschi,A Scribano,S Wolinski,E Kovacs,P De Barbaro,C Holck,L Holloway,F Semeria,I K Furic ,M T Cheng ,Charles A Nelson ,P Maksimović ,K S Mcfarland ,K D Hoffman ,P T Chang ,J S Miller ,N S Lockyer ,E A Mckigney ,B L Winer ,S D Worm ,R D Field ,T A Keaffaber ,R E Hughes ,S E Kuhlmann ,A T Laasanen ,J B Liu ,A T Goshaw ,R M Harris ,F D Snider ,S H Oh ,Y C Liu ,A S Thompson ,A Heiß ,A A Affolder ,C I Ciobanu ,E F Moore ,Y D Oh ,M Dell’orso ,J P Berge ,Th Müller ,E E Schmidt ,J P Fernández ,M J Kim ,S D’auria ,H H Williams ,S H Kim ,Ph Gris ,A J Slaughter ,T M Liss ,R J Tesarek ,R L Wagner ,A B Wicklund ,M C Kruse ,S B Kim ,R G Wagner ,J Guimarães Da Costa ,J Antos̆ ,J D Lewis ,D W Gerdes ,B F L Ward ,R Thurman‐Keup ,R M Haas ,D O Litvintsev ,W H Bell ,M L Chu ,A D Hardman ,S C Seidel ,И Чириков-Зорин ,N B Wallace ,J Königsberg ,Jorge F De Trocóniz ,Takashi Watanabe ,D H Kim ,S R Hahn ,Y S Chung ,Wei-Ming Yao ,V E Barnes ,B A Barnett ,G P Yeh ,M Brozović ,T J Phillips ,C Sánchez ,R G Feild ,C Y.p Ngan ,A Pompoš ,H S Budd ,R St Denis ,A W Chan ,W K Sakumoto ,Tong Gao ,P S Chang ,J W Berryhill ,S S Yu ,R E Blair ,J R Bensinger ,K L Byrum ,T K Nelson ,P F Shepard ,M D’onofrio ,A Martín ,Niu Huang ,G W Foster ,M P Schmidt ,P Azzi ,M P Kelly ,Wan Zhang ,H S Kim ,A M Lee ,P F Derwent ,A F Garfinkel ,S Dell’agnello ,W C Wester ,R D Kennedy ,W J Robertson ,M J Wang ,Y C Chen ,P K Teng ,J E Elias ,Y K Kim ,Yu Z

doi:10.1103/physrevlett.88.041801

Abstract

We have performed a search for gluinos (g) and scalar quarks (q) in a data sample of 84 pb(-1) of pp collisions at square root[s] = 1.8 TeV, recorded by the Collider Detector at Fermilab. We investigate the final state of large missing transverse energy and three or more jets, a characteristic signature in R-parity-conserving supersymmetric models. The analysis has been performed "blind," in that the inspection of the signal region is made only after the predictions from standard model backgrounds have been calculated. Comparing the data with predictions of constrained supersymmetric models, we exclude gluino masses below 195 GeV/c2 (95% C.L.), independent of the squark mass. For the case m(q) approximately m(g), gluino masses below 300 GeV/c2 are excluded.

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