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 a-re presented as functions of jet transverse energy (E(T.jet)(B)), jet pseudorapidity and Q(2), for jets with E(T.jet)(B) > 8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q(2) and high E(T.jet)(B). The value of alpha(s) (M(Z)), determined from an analysis of dsigma/dQ(2) for Q(2) > GeV(2), is alphas (M(Z)) = 0.1212 +/- 0.0017(stat.)(-0.0031)(+0.0023)(syst.)(-0.0027)(+0.0028)(th.). (C) 2002 Elsevier Science B.V. All rights reserved.

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 a-re presented as functions of jet transverse energy (E(T.jet)(B)), jet pseudorapidity and Q(2), for jets with E(T.jet)(B) > 8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q(2) and high E(T.jet)(B). The value of alpha(s) (M(Z)), determined from an analysis of dsigma/dQ(2) for Q(2) > GeV(2), is alphas (M(Z)) = 0.1212 +/- 0.0017(stat.)(-0.0031)(+0.0023)(syst.)(-0.0027)(+0.0028)(th.). (C) 2002 Elsevier Science B.V. All rights reserved.

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

CAPUA, Marcella;MASTROBERARDINO, Anna;Schioppa M;TASSI, Enrico;
2002-01-01

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 a-re presented as functions of jet transverse energy (E(T.jet)(B)), jet pseudorapidity and Q(2), for jets with E(T.jet)(B) > 8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q(2) and high E(T.jet)(B). The value of alpha(s) (M(Z)), determined from an analysis of dsigma/dQ(2) for Q(2) > GeV(2), is alphas (M(Z)) = 0.1212 +/- 0.0017(stat.)(-0.0031)(+0.0023)(syst.)(-0.0027)(+0.0028)(th.). (C) 2002 Elsevier Science B.V. All rights reserved.
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 a-re presented as functions of jet transverse energy (E(T.jet)(B)), jet pseudorapidity and Q(2), for jets with E(T.jet)(B) > 8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q(2) and high E(T.jet)(B). The value of alpha(s) (M(Z)), determined from an analysis of dsigma/dQ(2) for Q(2) > GeV(2), is alphas (M(Z)) = 0.1212 +/- 0.0017(stat.)(-0.0031)(+0.0023)(syst.)(-0.0027)(+0.0028)(th.). (C) 2002 Elsevier Science B.V. All rights reserved.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/133086
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