Jet production via strongly interacting color-singlet exchange in pp-bar collisions.

S Abachi,R K Shivpuri,G Guglielmo,H Jöstlein,J Jaques,E James,M Goforth,Ph Mangeot,P I Goncharov,B Gobbi,H Piekarz,J Alitti,J Tarazi,J Bendich,B Baldin,G E Forden,Ting Hu,H Schellman,K Bazizi,J Bantly,A Milder,A Leflat,H Greenlee,B Hoeneisen,T G Trippe,A Pluquet,R E Hall,D Edmunds,A P Vorobiev,H A Neal,R Madden,P M Sood,M Paterno,H T Diehl,A L Lyon,W G Cobau,J S Hoftun,A Jonckheere,E Neis,W E Cooper,K C Frame,J Sculli,E Won,N Grossman,M Abolins,P Rubinov,C Klopfenstein,A L Spadafora,T Fahland,D Denisov,J Womersley,R Partridge,D Buchholz,H E Montgomery,T Yasuda,D A Stoianova,S H Aronson,M Mudan,J A Wightman,G Di Loreto,V Sirotenko,K Denisenko,B I Klochkov,T Marshall,R Astur,A Narayanan,D Chakraborty,Tao Hu,T Huehn,A V Kozelov,V A Bezzubov,M Demarteau,M Fortner,S Youssef,H Johnstad,J F Bartlett,D Cullen-Vidal,J M Kohli,J M De Miranda,R D Schamberger,V S Narasimham,C Yanagisawa,S Margulies,D Hedin,W Guryn,E Amidi,P Z Quintas,J Mckinley,R Yamada,Y Ducros,L Oesch,M Bhattacharjee,A P Heinson,V N Evdokimov,N A Roe,M Pang,A Para,H Weerts,M Strovink,J M Hauptman,S A Jerger,B May,A Baden,E Flattum,A Peryshkin,J Ellison,M Marx,L Lueking,S Durston-Johnson,E Oltman,H E Fisk,H L Melanson,S Lami,G Wang,M Nicola,T L Taylor,J R T De Mello Neto,J Warchol,J Featherly,N Denisenko,D Vititoe,F Lobkowicz,P Grudberg,C Yoshikawa,A Goldschmidt,E W Anderson,S Fuess,G Álvarez,S Willis,S Fahey,G Finocchiaro,J Borders,A S Ito,M Jones,R J Madaras,B G Pope,O V Eroshin,D Fein,S N Gurzhiev,R Hatcher,S Glenn,T Mckibben,R Hernández-Montoya,M Sosebee,Y E Gutnikov,A Kernan,Y Fisyak,C Boswell,P M Tuts,S Y Jun,P Tamburello,J Drinkard,N Parua,H C Shankar,A Bross,J Kourlas,K Streets,J H Christenson,A Boehnlein,I V Mandrichenko,J Kotcher,R Engelmann,V Oguri,T Heuring,V M Podstavkov,M Chung,M R Krishnaswamy,A Klatchko,A Zylberstejn,B Gibbard,N Graf,G Eppley,H Haggerty,S Blessing,F Nang,A V Kostritskiy,A N Galyaev,F Borcherding,C Cretsinger,P D Grannis,J Solomon,B Gómez,M Diesburg,L T Goss,R Markeloff,S Mani,N K Mondal,K Genser,A Taketani,P A Rapidis,M Mohammadi-Baarmand,P Padley,K W Merritt,N Amos,F Hsieh,T Rockwell,C Shaffer,Q Z Li-Demarteau,N Oshima,V Balamurali,S P Denisov,J Teiger,S Chopra,E A Kozlovski,S Reucroft,P Yamin,S Rusin,J L González Solís,N I Bojko,J Balderston,J P Negret,H D Wahl,S Grünendahl,N Mokhov,K A Johns ,P Franzini,D Nešić,N N Biswas ,M A Shupe ,J Yang,Y Pischalnikov,C E Gerber,R Hirosky,R L Mccarthy ,J M Butler,A Smith,M R Adams ,O I Dahl,T Adams ,H Johari,C S Mishra,G R Snow,S Protopopescu,D R Claes ,J Perkins,R Raja,K S Hahn,A A Mayorov,J Yu,Q M Zhu ,A Volkov ,J G.r Lima ,D H Zhang,M Kelly ,T J Mcmahon ,V D Elvira,D Casey,H Miettinen,B C Choudhary,S Kahn,J Wilcox,A Brandt,D L Pušeljić ,T Hu ,M Souza,N J Hadley,B Klima,D Ćutts ,S Krzywdziński ,R Brock,S Hansen,V Klyukhin ,H Prosper ,M L Stevenson,R E Avery,P Gutiérrez ,S Igarashi,A R Clark,L Rasmussen,Michael Peters ,M Narain,J A Guida,T Ferbel,M Martin ,Y K Li,L A Markosky ,O Ramírez ,V Kochetkov ,C.t Murphy ,D Koltick,V Hagopian,V Bhatnagar,M Tartaglia,J B Singh,Y Yu,E Shabalina,G Kalbfleisch,David J Stewart ,T L Geld,P C Bhat,P Draper,D Lincoln,J S Kang,B S Acharya,L Chevalier,S Kunori,E W Varnes,S Fehér ,J Thompson,C L Kim,S Linn ,И Адам ,F Wen,S V Chekulaev,R Snihur,S Hagopian,B Mansoulié,H Xu,S Loken ,J Cochran,W Chen,E J Gallas ,J Qian,S Eno,L.-P Chen,R Ruchti,M Rijssenbeek,K De,J V.d Wirjawan ,Y M Park,R Lipton,B Abbott,S B Beri,S Snyder,P Némethy ,J Li,В С Буртовой ,J Green,D R Green,J M Guida,W X Gu,A Santoro,A Ziemiński ,Jun Jiang ,J P Rutherfoord ,A Bischoff,Shihyun Ahn ,J Hobbs ,J T White,A I Mincer ,S K Kim,D Wood ,H Li,D Owen,P.r.g Virador ,A L Read,R J Genik ,Y Shao ,A K.a Maciel ,I Bertram,G Griffin,L T Kerth ,U Heintz,G A Alves,P Ermolov,N Varelas,J Linnemann,H A Gordon ,G Landsberg,P C Bloom ,H Castilla‐Valdez ,M Fatyga,C H Park,R P Smith,M Johnson,H S Mao,M V S Rao,D P Stoker ,R Démina ,S M Chang ,L Sawyer,V Yu Glebov ,Z H Zhu,S Lökòs ,Y C Liu,S Wimpenny ,W Carvalho,R Kehoe,R W Stephens,C K Jung,G Blazey,D Norman,S Dugad ,R Dixon,A White,P Mooney,A Sznajder,T Joffe–Minor ,H Aihara,M Wayne,W Smart,J F Lebrat ,M A.c Cummings ,D Ziemińska ,S Rajagopalan

doi:10.1103/physrevlett.76.734

Abstract

A study of the particle multiplicity between jets with large rapidity separation has been performed using the D0 detector at the Fermilab Tevatron pp¯ Collider operating at s=1.8TeV. A significant excess of low-multiplicity events is observed above the expectation for color-exchange processes. The measured fractional excess is 1.07±0.10(stat)−0.13+0.25(syst)%, which is consistent with a strongly interacting color-singlet (colorless) exchange process and cannot be explained by electroweak exchange alone. A lower limit of 0.80% (95% C.L.) is obtained on the fraction of dijet events with color-singlet exchange, independent of the rapidity gap survival probability.Received 20 September 1995DOI:https://doi.org/10.1103/PhysRevLett.76.734©1996 American Physical Society

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