Measurement of Dijet Angular Distributions and Search for Quark Compositeness

B Abbott,D Buchholz,T Rockwell,H T Diehl,T L Geld,N Graf,H Greenlee,S Youssef,L Sawyer,H Jöstlein,D Fein,S K Kim,G Watts,F Landry,Y C Liu,L Oesch,S Reucroft,R Engelmann,E James,V Oguri,A Boehnlein,G Blazey,E W Anderson,H S Mao,A Gupta,D A Stoianova,C E Gerber,A White,M L Stevenson,A A Mayorov,S Protopopescu,G Finocchiaro,Y Pischalnikov,N Grossman,M Tartaglia,J B Singh,R Hirosky,R Brock,J Womersley,K Davis,R Lipton,A V Kostritskiy,V Hagopian,L.-P Chen,R Snihur,D Cullen-Vidal,M Sosebee,F Borcherding,M Nicola,W G Cobau,H E Fisk,J Balderston,L Magaña-Mendoza,M Strauss,G Landsberg,V M Podstavkov,S Hansen,E Amidi,S Chopra,D Owen,A Baden,S Kahn,N K Mondal,M Souza,A Brandt,S Y Jun,T G Trippe,H E Montgomery,H A Neal,P Ermolov,P Yamin,M Fortner,M Goforth,N Oshima,H Li,P M Sood,D Hedin,A Leflat,P Rubinov,J Thompson,Ting Hu,V Bhatnagar,M Chung,N Mokhov,F Stichelbaut,S Snyder,R P Smith,K S Hahn,S Kunori,K Streets,J A Guida,N Sotnikova,H L Melanson,P I Goncharov,K De,M Demarteau,G R Snow,L Lueking,E Flattum,R Ruchti,P Gartung,J S Hoftun,M Diesburg,T Heuring,A Klatchko,H C Shankar,N A Roe,P Mooney,T Fahland,J Warchol,S Mani,G Wang,B Gobbi,H Haggerty,V Balamurali,M Narain,H Da Motta,J Ellison,E Oltman,N Amos,J Solomon,J Jaques,K W Merritt,Y Fisyak,R Kehoe,J Li,B Baldin,S Glenn,R J Madaras,S N Gurzhiev,P Draper,V D Elvira,C Klopfenstein,C K Jung,J Green,T Huehn,G Gómez,N Parua,D Norman,L T Goss,N J Hadley,H Singh,J Kotcher,J F Bartlett,D Lincoln,M Jones,D Casey,V Sirotenko,W E Cooper,J S Kang,R Yamada,J H Christenson,P Yepes,R Astur,R E Hall,T Mckibben,S Rajagopalan,S P Denisov,J T White,Tong Hu,E Shabalina,D Vititoe,J M Kohli,M Strovink,A Jonckheere,R Lander,U Heintz,E A Kozlovski,A N Galyaev,G E Forden,C Yoshikawa,E W Varnes,J L González Solís,O I Dahl,E G Zverev,A Santoro,W Carvalho,A Goldschmidt,Y Yu,S Grinstein,K Del Signore,S B Beri,B G Pope,K Bazizi,P Grudberg,K Gounder,G Kalbfleisch,A Bross,D Denisov,V S Narasimham,A Sánchez-Hernández,H Xu,I Bertram,S Willis,B Gómez,R Markeloff,E Won,S Grünendahl,M M Baarmand,J Cochran,R K Shivpuri,S Hagopian,M Abolins,B Gibbard,A P Heinson,R Hernández-Montoya,R D Schamberger,D Edmunds,G A Alves,W Chen,H Lan,S Banerjee,H D Wahl,G Eppley,B C Choudhary,Y E Gutnikov,S Fuess,R W Stephens,F Hsieh,J Linnemann,D Chakraborty,R J Genik,C Shaffer,A Narayanan,J Krane,T Yasuda,P Hanlet,C Cretsinger,P C Bhat,J Qian,D Koltick,N I Bojko,V A Bezzubov,T Ferbel,Z H Zhu,J M Hauptman,J Bantly,M Paterno,J Yu,A S Ito,P Z Quintas,M Pang,A P Vorobiev,S V Chekulaev,S Blessing,A L Spadafora,C Boswell,K M Mauritz,H Weerts,H Miettinen,J Tarazi,M Wayne,A V Kozelov,M R Kirshnaswamy,J A Wightman,J P Negret,P Padley,M Bhattacharjee,K C Frame,S Choi,B May,P M Tuts,J Featherly,J Perkins,B Hoeneisen,C S Mishra,B S Acharya,G Grim,K Genser,A Sznajder,R Partridge,Y Ducros,O V Eroshin,D R Green,Q Liu,Y M Park,M Merkin,A Para,J Sculli,C L Kim,J Mckinley,B Lauer,H Aihara,F Lobkowicz,J Kourlas,J M Guida,S Lami,P D Grannis,P Tamburello,C Yanagisawa,N Varelas,G Guglielmo,H Schellman,A Belyaev,L Rasmussen,R Piegaia,R Madden,J Snow,R Raja,R Jesik,Z Casilum,A L Lyon,M Rijssenbeek,W Smart,B Klima,A R Clark,M Fatyga,T Marshall,A Zylberstejn,F Nang,G Di Loreto,H Piekarz,Q Z Li-Demarteau,J M Butler,S A Jerger,В С Буртовой ,S Wimpenny ,D R Claes ,S Lökòs ,M R Adams ,N N Biswas ,T Adams ,A G Goussiou ,P C Bloom ,A Ziemiński ,D P Stoker ,K A Johns ,P Gutiérrez ,S Loken ,D Ziemińska ,T Joffe–Minor ,M A.c Cummings ,E J Gallas ,S Fehér ,O Ramírez ,H Prosper ,David J Stewart ,T R Mcmahon ,H A Gordon ,A Volkov ,J V.d Wirjawan ,Jian Yang ,M Kelly ,T L Thomas ,A K.a Maciel ,L Dudko ,S C Eno ,D Ćutts ,V Kochetkov ,John Mcdonald ,И Адам ,H Castilla‐Valdez ,A Kotwal ,M Martin ,J Hobbs ,S Krzywdziński ,M A Shupe ,C.t Murphy ,V Klyukhin ,D Wood ,Mark D Johnson ,S Dugad ,S M Chang ,Michael Peters ,J P Rutherfoord ,R L Mccarthy ,Sang Un Ahn ,В Н Евдокимов ,A I Mincer ,P Némethy ,J G.r Lima ,S Linn ,Jun Jiang

doi:10.1103/physrevlett.80.666

Abstract

We have measured the dijet angular distribution in s=1.8TeVpp¯ collisions using the D0 detector. Order αs3 QCD predictions are in good agreement with the data. At 95% confidence limit the data exclude models of quark compositeness in which the contact interaction scale is below 2 TeV.Received 7 July 1997DOI:https://doi.org/10.1103/PhysRevLett.80.666©1998 American Physical Society

Full Text