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Measurement of inclusive jet production in deep-inelastic scattering at high Q2 and determination of the strong coupling

A. Aktas C. Alexa V. Andreev T. Anthonis B. Antunovic S. Aplin A. Asmone A. Astvatsatourov S. Backovic A. Baghdasaryan P. Baranov E. Barrelet 1 W. Bartel S. Baudrand 2 M. Beckingham K. Begzsuren O. Behnke O. Behrendt A. Belousov N. Berger J.C. Bizot 2 M.-O. Boenig V. Boudry 3 I. Bozovic-Jelisavcic J. Bracinik G. Brandt M. Brinkmann V. Brisson 2 D. Bruncko F.W. Büsser A. Bunyatyan G. Buschhorn L. Bystritskaya A.J. Campbell K.B. Cantun Avila F. Cassol-Brunner 4 K. Cerny V. Cerny V. Chekelian A. Cholewa J.G. Contreras J.A. Coughlan G. Cozzika 5 J. Cvach J.B. Dainton K. Daum M. Deak Y. de Boer B. Delcourt 2 M. del Degan J. Delvax A. de Roeck E.A. de Wolf C. Diaconu 4 V. Dodonov A. Dubak G. Eckerlin V. Efremenko S. Egli R. Eichler F. Eisele A. Eliseev E. Elsen S. Essenov A. Falkiewicz P.J.W. Faulkner L. Favart A. Fedotov R. Felst J. Feltesse 5 J. Ferencei L. Finke M. Fleischer A. Fomenko G. Franke T. Frisson 3 E. Gabathuler J. Gayler S. Ghazaryan S. Ginzburgskaya A. Glazov I. Glushkov L. Goerlich M. Goettlich N. Gogitidze S. Gorbounov M. Gouzevitch 3 C. Grab T. Greenshaw B.R. Grell G. Grindhammer S. Habib D. Haidt M. Hansson G. Heinzelmann C. Helebrant R.C.W. Henderson H. Henschel G. Herrera M. Hildebrandt K.H. Hiller D. Hoffmann 4 R. Horisberger A. Hovhannisyan T. Hreus M. Jacquet 2 M.E. Janssen X. Janssen V. Jemanov L. Jönsson D.P. Johnson A.W. Jung H. Jung M. Kapichine J. Katzy I.R. Kenyon C. Kiesling M. Klein C. Kleinwort T. Klimkovich T. Kluge A. Knutsson V. Korbel P. Kostka M. Kraemer K. Krastev J. Kretzschmar A. Kropivnitskaya K. Krüger M.P.J. Landon W. Lange G. Latovika-Medin P. Laycock A. Lebedev G. Leibenguth V. Lendermann S. Levonian G. Li 2 L. Lindfeld K. Lipka A. Liptaj B. List J. List N. Loktionova R. Lopez-Fernandez V. Lubimov A.-I. Lucaci-Timoce L. Lytkin A. Makankine E. Malinovski P. Marage Ll. Marti M. Martisikova H.-U. Martyn S.J. Maxfield A. Mehta K. Meier A.B. Meyer H. Meyer J. Meyer V. Michels S. Mikocki I. Milcewicz-Mika A. Mohamed F. Moreau 3 A. Morozov J.V. Morris M.U. Mozer K. Müller P. Murín K. Nankov B. Naroska Th. Naumann P.R. Newman C. Niebuhr A. Nikiforov G. Nowak K. Nowak M. Nozicka R. Oganezov B. Olivier J.E. Olsson S. Osman D. Ozerov V. Palichik I. Panagoulias M. Pandurovic Th. Papadopoulou C. Pascaud 2 G.D. Patel H. Peng Emile Perez 5 D. Perez-Astudillo A. Perieanu A. Petrukhin I. Picuric S. Piec D. Pitzl R. Plaakyt R. Polifka B. Povh T. Preda P. Prideaux V. Radescu A.J. Rahmat N. Raicevic T. Ravdandorj P. Reimer C. Risler E. Rizvi P. Robmann B. Roland R. Roosen A. Rostovtsev Z. Rurikova S. Rusakov F. Salvaire D.P.C. Sankey M. Sauter E. Sauvan 4 S. Schmidt S. Schmitt C. Schmitz L. Schoeffel 5 A. Schöning H.-C. Schultz-Coulon F. Sefkow R.N. Shaw-West I. Sheviakov L.N. Shtarkov T. Sloan I. Smiljanic P. Smirnov Y. Soloviev D. South V. Spaskov A. Specka 3 Z. Staykova M. Steder B. Stella J. Stiewe U. Straumann D. Sunar T. Sykora V. Tchoulakov G. Thompson P.D. Thompson T. Toll F. Tomasz T.H. Tran 2 D. Traynor T.N. Trinh 4 P. Truöl I. Tsakov B. Tseepeldorj G. Tsipolitis I. Tsurin J. Turnau E. Tzamariudaki K. Urban D. Utkin A. Valkárová Corentin Vallée 4 P. van Mechelen A. Vargas Trevino Y. Vazdik S. Vinokurova V. Volchinski G. Weber R. Weber D. Wegener C. Werner M. Wessels Ch. Wissing R. Wolf E. Wünsch S. Xella W. Yan V. Yeganov J. Zácek J. Záleák Zhiqing Zhang 2 A. Zhelezov A. Zhokin Y.C. Zhu T. Zimmermann H. Zohrabyan F. Zomer 2
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 alpha_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 alpha_s(M_Z)=0.1193+/-0.0014(exp.)^{+0.0047}_{-0.0030}(th.)+/-0.0016(pdf).
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Submitted on : Monday, September 17, 2007 - 10:16:39 AM
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A. Aktas, C. Alexa, V. Andreev, T. Anthonis, B. Antunovic, et al.. Measurement of inclusive jet production in deep-inelastic scattering at high Q2 and determination of the strong coupling. Physics Letters B, Elsevier, 2007, 653, pp.134-144. ⟨10.1016/j.physletb.2007.07.05⟩. ⟨in2p3-00172419⟩

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