DSpace at EWHA: Inclusive jet cross sections in the Breit frame in neutral current deep inelastic scattering at HERA and determination of α s

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Inclusive jet cross sections in the Breit frame in neutral current deep inelastic scattering at HERA and determination of α s

Title: Inclusive jet cross sections in the Breit frame in neutral current deep inelastic scattering at HERA and determination of α s

Authors: Chekanov S.; Krakauer D.; Magill S.; Musgrave B.; Repond J.; Yoshida R.; Mattingly M.C.K.; Antonioli P.; Bari G.; Basile M.; Bellagamba L.; Boscherini D.; Bruni A.; Bruni G.; Cara Romeo G.; Cifarelli L.; Cindolo F.; Contin A.; Corradi M.; De Pasquale S.; Giusti P.; Iacobucci G.; Margotti A.; Nania R.; Palmonari F.; Pesci A.; Sartorelli G.; Zichichi A.; Aghuzumtsyan G.; Bartsch D.; Brock I.; Crittenden J.; Goers S.; Hartmann H.; Hilger E.; Irrgang P.; Jakob H.-P.; Kappes A.; Katz U.F.; Kerger R.; Kind O.; Paul E.; Rautenberg J.; Renner R.; Schnurbusch H.; Stifutkin A.; Tandler J.; Voss K.C.; Weber A.; Bailey D.S.; Brook N.H.; Cole J.E.; Foster B.; Heath G.P.; Heath H.F.; Robins S.; Rodrigues E.; Scott J.; Tapper R.J.; Wing M.; Capua M.; Mastroberardino A.; Schioppa M.; Susinno G.; Kim J.Y.; Kim Y.K.; Lee J.H.; Lim I.T.; Pac M.Y.; Caldwell A.; Helbich M.; Liu X.; Mellado B.; Ning Y.; Paganis S.; Ren Z.; Schmidke W.B.; Sciulli F.; Chwastowski J.; Eskreys A.; Figiel J.; Olkiewicz K.; Piotrzkowski K.; Przybycien M.B.; Stopa P.; Zawiejski L.; Adamczyk L.; Bold T.; Grabowska-Bold I.; Kisielewska D.; Kowal A.M.; Kowal M.; Kowalski T.; Przybycien M.; Suszycki L.; Szuba D.; Szuba J.; Kotanski A.

Journal Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics vol. 547, no. 3-4, pp. 164 - 180

Abstract: Inclusive jet differential cross sections have been measured in neutral current deep inelastic e +p scattering for boson virtualities Q 2 > 125 GeV 2. The data were taken using the ZEUS detector at HERA and correspond to an integrated luminosity of 38.6 pb -1. Jets were identified in the Breit frame using the longitudinally invariant k T cluster algorithm. Measurements of differential inclusive jet cross sections are presented as functions of jet transverse energy (E B T.jet), jet pseudorapidity and Q 2, for jets with E B T.jet > 8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q 2 and high E B T.jet. The value of α s(M z), determined from an analysis of dσ/dQ 2 for Q 2 > 500 GeV 2, is α s(M Z=0.1212±0.0017 (stat.) +0.0023 -0.0031 (syst.) +0.0028 -0.0027(th.). © 2002 Elsevier Science B.V. All rights reserved.