Search for pair production of scalar top quarks in R-parity violating decay modes in pp collisions at square root of s=1.8 TeV.

D Acosta,L Rosenson,V Papadimitriou,S Waschke,J Budagov,C Dionisi,F Spinella,E Kovacs,A Scribano,C Bromberg,T Suzuki,S Bailey,M Iori,M Shimojima,G Martignon,A T Laasanen,A Pompoš,T A Keaffaber,K Goulianos,K Kotelnikov,S Wolinski,Y Iwata,A Barbaro-Galtieri,J Boudreau,L Malferrari,S Zucchelli,S Miscetti,A Gallas,S Cabrera,S Galeotti,A Solodsky,A Mukherjee,M Hennecke,F Dejongh,M Garcia-Sciveres,S Murgia,W H Bell,L Santi,W J Robertson,G Punzi,P Koehn,G Velev,T Unverhau,O Pukhov,S Behari,P F Shepard,P F Derwent,S Tkaczyk,T J Phillips,C Mesropian,N Goldschmidt,L Pondrom,A Loginov,E James,W Carithers,H H Williams,P Mazzanti,T Devlin,D Tonelli,M L Chu,J D Lewis,D Cauz,P Sinervo,A Munar,P Gatti,E Thomson,S Lami,F Strumia,K Sliwa,F Palmonari,T Vaiciulis,G P Yeh,M J Kim,J Valls,G Busetto,L Holloway,B Flaugher,L Pescara,R G Feild,W Orejudos,A Bodek,E Brubaker,J Huston,A Connolly,N Moggi,R J Tesarek,J Wolinski,C Haber,P De Barbaro,B Iyutin,D De Pedis,S E Kuhlmann,A Menzione,M Tecchio,R Oishi,M Gold,A Bhatti,M Spezziga,N Lai,Q Fan,R Vidal,C Neu,T Miao,B Whitehouse,Y Seiya,F Zetti,S Baroiant,K D Hoffman,J Wyss,D Khazins,S Tether,A Meyer,A Korn,T Speer,P Giromini,K Kondo,G Pauletta,A Bolshov,J Patrick,T Handa,D Glenzinski,J Piedra,M Jones,R Madrak,R D Kennedy,J Cranshaw,S H Oh,I Fiori,Y D Oh,O Lobban,H Nakada,M Campbell,M Menguzzato,S Donati,T Ohsugi,G Introzzi,F Ptohos,K Takikawa,H Ray,R Kephart,G Veramendi,T Okusawa,M Lancaster,Y Bonushkin,D Dagenhart,D Winn,A Ribon,R Roser,B T Huffman,S H Kim,B Tannenbaum,A Sedov,R D Field,K Tollefson,M Rescigno,V Nagaslaev,P K Teng,W Caskey,Y Miyazaki,K Kelley,A Ruiz,S R Hahn,Y Gotra,L Zanello,G Guillian,A Gresele,L Nodulman,S Wolbers,B A Barnett,J C Yun,C Pagliarone,G Chlachidze,M Loreti,S Kartal,F D Snider,T Asakawa,D Lucchesi,T Kuwabara,A B Wicklund,P Schlabach,H Kasha,K Kurino,T Nigmanov,M Binkley,T Shibayama,E Gerstein,A Reichold,R E Blair,G Manca,S Errede,Y S Chung,N Eddy,E Engels,C Grosso-Pilcher,Y Kato,A Varganov,P Murat,M Guenther,W K Sakumoto,A Rakitine,P Tamburello,D Errede,G Piacentino,A S Thompson,D W Gerdes,G Pope,R Handler,A Semenov,J Steele,D Amidei,J Siegrist,L Christofek,J B Liu,C I Ciobanu,M Barone,G Bauer,H Minato,N Bruner,J Iwai,K L Byrum,R Vilar,C Yosef,A J Slaughter,G W Foster,S Lusin,R L Wagner,P Wilson,H S Budd,Y Morita,E E Schmidt,T Moulik,T Takano,A P Colijn,W Badgett,N B Wallace,S Rolli,J Proudfoot,H Toyoda,Z Wan,J Lys,F Azfar,M Riveline,K Karr,M Bishai,H Akimoto,K Giolo,D Waters,R Culbertson,K Anikeev,J Spalding,A Artikov,P Yeh,L Demortier,D Toback,M Franklin,M P Schmidt,A D Hardman,W C Wester,M Cordelli,F Happacher,M Mishina,F Semeria,P Lukens,J Conway,S Klimenko,M Lindgren,F Rimondi,J Yoh,A T Goshaw,F Niell,S De Cecco,U K Yang,E Vataga,R Napora,J Lancaster,D Partos,D O Litvintsev,T Wilkes,D Neuberger,K S Mcfarland,E Wicklund,M Karagoz Unel,N S Lockyer,M Von Der Mey,D Reher,T Kaneko,M Coca,S Vejcik,W Ashmanskas,D Wolinski,U Joshi,P Singh,P Giannetti,W Trischuk,L Ristori,J Antos̆ ,T M Liss,M Weber,J Friedman,S S Yu ,A Beretvas,R Miller,S Nahn,J Kroll,A Dominguez,V Krutelyov,Le Yao ,T Yoshida,K Li,J Chapman,T Lecompte,Y K Kim,J H Rademacker ,A Lath,F Chlebana,И Чириков-Зорин ,M Mangano,J Goldstein,A Roy,C Newman-Holmes,A Penzo,K Burkett,S B Kim,L Lyons,I Volobouev,J Huth,M W Wolter ,V J Martin ,Н Кузнецова ,M Paulini,C Ferretti,C S Hill ,E F Moore ,J S Kang ,K Bloom,J Olsen,D Bisello,Jorge F De Trocóniz ,M Herndon,N Leonardo,P Savard,M Chertok,I Gorelov,S Blusk ,T K Nelson ,K Hatakeyama,T Rodrigo,A Höcker ,T Liu,M Deninno,S Dell’Agnello,A Sidoti,F Ratnikov,D H Kim,A Clark ,A Sill,N Bacchetta,R Paoletti,Takashi Watanabe ,S Lammel,X Wu,J Tseng,F Würthwein,J Strologas,T Watts,M Goncharov,M P Giordani ,T Kamon,C Blocker,A Cerri,J Königsberg ,A Scott,M T Cheng ,P S Chang,R St Denis,K Lannon,P Renton,A Brandl,D Vucinic,A Savoy-Navarro,J Y Chung,M Dell’Orso,M D’Onofrio,F Bedeschi,Ç İşsever ,P Calafiura,J Bellinger,R G Wagner,C Hall,T Pratt,M E Convery ,S Giagu,J Guimarães Da Costa ,A Castro,Josh Cuevas Fernandez ,D Ryan,Y Fukui,Y C Liu,L Kirsch,P Merkel,A Sansoni,L Spiegel,G Bolla,M J Shochet ,G Bellettini,S Hou,R M Harris,L R Flores Castillo ,M S Neubauer,C Sánchez ,B Blumenfeld,J Incandela,S D’Auria,T Shah,D Pellett,M Martı́nez ,R Erbacher,A Martín ,G Latino,V E Barnes,K Hara,J Hauser,H Bachacou,K Maeshima,Y C Chen,V Glagolev,M Tanaka,G Gómez ,Yu Z ,F Ukegawa,M Brozović ,A F Garfinkel,R Eusebi,D Carlsmith,D Benjamin,R Rossin,J W Berryhill ,N Turini,Th Müller ,R M Haas,S M Wang,P Tipton,J Loken,H S Kim,H Kambara,D Tsybychev,K Yi,M Kelly,H Sato,M J Wang,W H Chung ,A Heiß ,J Carlson,S Leone,T Dorigo,A Nomerotski,D Ambrose,L Cerrito,J Matthews ,T Gao,B F L Ward ,A Bocci,T Arisawa,A Safonov,I Yu,R Thurman‐Keup ,G Chiarelli,J Thom,R Takashima,D Bortoletto,A Korytov,I Vila,Charles A Nelson ,P Mcintyre,J S Miller,M Mulhearn,Niu Huang ,M Kirby,S W Lee,W Riegler,G Mitselmakher,F Hartmann,A Ivanov,T Kikuchi,M Kirk,T Ohmoto,I Nakano,R E Hughes ,T H Kim,M Schmitt,J Dittmann ,K Einsweiler,M Shapiro ,F Prokoshin,M Tönnesmann ,W Wagner,R Snihur,P Azzi ,C Paus,C Green,P T Chang,K Pitts ,D Stuart,M Martin,S M Farrington ,E Halkiadakis,B J Kim,S C Seidel ,G Grim,C S Lin,D Saltzberg,C Rott,L Scodellaro,S Demers,G Apollinari,M Albrow ,C Wang,J Nachtman,M Spiropulu,M Gallinaro,R Lander,I K Furic ,B Kilminster,W-M Yao ,A Zanetti,S D Worm ,P Sphicas,H Ikeda,J R Bensinger ,S Belforte,H Wenzel,S Sarkar,J Lee,А Суханов ,J Heinrich,A W Chan,K Terashi,J Freeman,C Y.p Ngan ,M C Kruse ,T Pauly,R Hollebeek,A A Affolder ,P Maksimović ,K Sumorok,R Moore,C Chen,A Stefanini,M Mariotti,B L Winer

doi:10.1103/physrevlett.92.051803

Abstract

We present the results of a search for pair production of scalar top quarks (t(1)) in an R-parity violating supersymmetry scenario in 106 pb(-1) of pp collisions at square root of s=1.8 TeV collected by the Collider Detector at Fermilab. In this mode each t(1) decays into a tau lepton and a b quark. We search for events with two tau's, one decaying leptonically (e or mu) and one decaying hadronically, and two jets. No candidate events pass our final selection criteria. We set a 95% confidence level lower limit on the t(1) mass at 122 GeV/c(2) for Br(t(1)-->tau b)=1.

Full Text