Measurement of inclusive jet production in deep-inelastic scattering at high [formula omitted] and determination of the strong coupling

A Aktas,S Baudrand,G Franke,V Spaskov,J Ferencei,R.N Shaw-West,V Efremenko,T Frisson,E Gabathuler,E Barrelet,D Ozerov,A Specka,Y Vazdik,V Lubimov,H Henschel,Y Soloviev,S Ginzburgskaya,F Cassol-Brunner,M Steder,P Truöl,C Pascaud,V Yeganov,V Tchoulakov,S Egli,T Toll,R Oganezov,A Makankine,H Zohrabyan,M Del Degan,J Gayler,A.-I Lucaci-Timoce,O Behnke,R Felst,A Petrukhin,L Goerlich,L Lindfeld,Z Staykova,P Van Mechelen,A Bunyatyan,A Cholewa,K Krastev,T Greenshaw,S Vinokurova,A Baghdasaryan,V Jemanov,P Prideaux,K Nowak,K Daum,T Anthonis,J Stiewe,T Kluge,G Grindhammer,S Essenov,D Traynor,I Tsurin,M Jacquet,A Hovhannisyan,F Sefkow,A Valkárová,A Falkiewicz,F Moreau,N Loktionova,C Risler,G Buschhorn,S Habib,A Lebedev,V Dodonov,B Naroska,G Herrera,A Nikiforov,E Malinovski,A Dubak,B Tseepeldorj,L Bystritskaya,A Zhelezov,L Lytkin,M Goettlich,G Heinzelmann,M.-O Boenig,Y De Boer,I Milcewicz-Mika,S Levonian,D Haidt,E Tzamariudaki,D Wegener,V Chekelian,F Eisele,V Korbel,J Turnau,B Stella,J Cvach,I Tsakov,A Astvatsatourov,P Kostka,G Li,K Müller,B Delcourt,V Brisson,S Gorbounov,D Sunar,T Klimkovich,L Finke,G Cozzika,V Volchinski,C Kiesling,U Straumann,S Ghazaryan,J Feltesse,G Weber,J Delvax,D Utkin,T Preda,A Glazov,S Mikocki,W Bartel,N Gogitidze,I Sheviakov,F Salvaire,T Ravdandorj,M Kapichine,F Tomasz,O Behrendt,J.C Bizot,K Urban,K Nankov,M Kraemer,C Niebuhr,A Asmone,V Lendermann,A Rostovtsev,R Roosen,K Begzsuren,R Eichler,C Vallée,A De Roeck,M Fleischer,G Leibenguth,C Kleinwort,M Klein,A Fomenko,K B Cantun Avila ,K Černý ,R Horisberger,T N Trinh ,T Sýkora ,I Pićurić ,A W Jung ,P R Newman ,E Pérez ,P Smirnov,S J Maxfield ,T Zimmermann,I Glushkov,M Pandurović ,A Eliseev,B List,Volker Michels ,D Pérez-Astudillo ,Z Rurikova,M Nožička ,S Xella,D P C Sankey ,P Reimer,G Latovika-Medin ,H U Martyn ,J V Morris ,A Mohamed,H Peng,I Božović-Jelisavc̆ić ,B R Grell ,E A De Wolf ,I Panagoulias,A Belousov,M U Mozer ,L N Shtarkov ,Peter Faulkner ,M Wessels,R Weber,T Sloan,Y Zhu ,G Nowak,M Beckingham,M Hildebrandt,J B Dainton ,J Žáček,C Wissing ,M Gouzevitch,V Radescu,B Olivier,T Hreus,E Sauvan,R C W Henderson ,C Helebrant,Th D Papadopoulou ,P Marage,X Janssen,R Plaakyt ,G Eckerlin,A Knutsson,K H Hiller ,Bogdan Povh ,L Schoeffel,B Antunović ,A Kropivnitskaya,D South,M Sauter,H.‐C Schultz‐Coulon ,M P J Landon ,E Rizvi,K Krüger,F.W Büsser,S M Piec ,A Mehta,M Martišíková ,J Kretzschmar,T H Tran ,Magnus Hansson ,Michal Deák ,I Smiljanić ,A J Rahmat ,F Zomer,H Meyer,J E Olsson ,N Berger,D Johnson ,Peter Thompson ,J Meyer,A Schöning,K Lipka,P Baranov,P Robmann,S Osman,R Polifka,G D Patel ,П Мурін ,A Campbell ,L Jönsson,M.E Janssen,D Pitzl,K Meier,S Schmitt,G Brandt,C Diaconu,A Perieanu,I R Kenyon ,P Laycock,Zhen Zhang ,S Schmidt,G Tsipolitis,Jenny List ,V Boudry,G Thompson,S Backović ,A Zhokin,R López-Fernández ,A Meyer ,V Andreev,W Lange,S Aplin,V Černý ,A Liptaj,C Grab,Martin Brinkmann ,T Naumann ,B Roland,C Schmitz,C Werner,A Vargas Trevino,C Alexa,H Jung,J Záleák ,J A Coughlan ,W Yan,S V Rusakov ,E Elsen,D Bruncko,J Katzy,N Raičević ,E Wünsch,D Hoffmann,V Palichik,J G Contreras ,J Braciník ,L Favart,A Fedotov,A Morozov,R Wolf,L Marti

doi:10.1016/j.physletb.2007.07.050

Abstract

Inclusive jet production is studied in neutral current deep-inelastic positron–proton scattering at large four momentum transfer squared Q 2 > 150 GeV 2 with the H1 detector at HERA. Single and double differential inclusive jet cross sections are measured as a function of Q 2 and of the transverse energy E T of the jets in the Breit frame. The measurements are found to be well described by calculations at next-to-leading order in perturbative QCD. The running of the strong coupling is demonstrated and the value of α s ( M Z ) is determined. The ratio of the inclusive jet cross section to the inclusive neutral current cross section is also measured and used to extract a precise value for α s ( M Z ) = 0.1193 ± 0.0014 ( exp. ) −0.0030 +0.0047 ( th. ) ± 0.0016 ( pdf ) .

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