Title of article :
Inclusive jet cross sections in the Breit frame in neutral current deep inelastic scattering at HERA and determination of αs
Author/Authors :
ZEUS Collaboration، نويسنده , , Valeri S. Chekanov، نويسنده , , D. Krakauer، نويسنده , , S. Magill، نويسنده , , B. Musgrave، نويسنده , , J. Repond، نويسنده , , R. Yoshida، نويسنده , , M.C.K. Mattingly، نويسنده , , P. Antonioli، نويسنده , , G. Bari، نويسنده , , M. Basile، نويسنده , , L. Bellagamba، نويسنده , , D. Boscherini، نويسنده , , C. B. Vicentini and A. Bruni، نويسنده , , G. Bruni، نويسنده , , G. Cara Romeo، نويسنده , , L. Cifarelli، نويسنده , , F. Cindolo، نويسنده , , A. Contin، نويسنده , , M. Corradi، نويسنده , , et al.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
Pages :
17
From page :
164
To page :
180
Abstract :
Inclusive jet differential cross sections have been measured in neutral current deep inelastic e+p scattering for boson virtualities Q2>125 GeV2. 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 kT cluster algorithm. Measurements of differential inclusive jet cross sections are presented as functions of jet transverse energy (EBT,jet), jet pseudorapidity and Q2, for jets with EBT,jet>8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q2 and high EBT,jet. The value of αs(MZ), determined from an analysis of dσ/dQ2 for Q2>500 GeV2, is αs(MZ)=0.1212±0.0017(stat.)+0.0023−0.0031(syst.)+0.0028−0.0027(th.).
Journal title :
PHYSICS LETTERS B
Serial Year :
2002
Journal title :
PHYSICS LETTERS B
Record number :
916311
Link To Document :
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