Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA

HERAFitter developers’ team

Research output

138 Citations (Scopus)

Abstract

Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σ red cc̄ for charm production are obtained in the kinematic range of photon virtuality 2. 5≤Q 2 ≤2000 GeV 2 and Bjorken scaling variable 3{dot operator}10 -5 ≤x≤5{dot operator}10 -2 . The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W ± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined.

Original languageEnglish
Article number2311
Pages (from-to)1-26
Number of pages26
JournalEuropean Physical Journal C
Volume73
Issue number2
DOIs
Publication statusPublished - 1 Jan 2013

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Inelastic scattering
inelastic scattering
quantum chromodynamics
Flavors
cross sections
Distribution functions
Kinematics
Photons
operators
partons
scattering cross sections
kinematics
distribution functions
quarks
scaling
photons
predictions

Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

@article{d87c9272e84c4c50b68bd3a707634bc8,
title = "Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA",
abstract = "Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σ red cc̄ for charm production are obtained in the kinematic range of photon virtuality 2. 5≤Q 2 ≤2000 GeV 2 and Bjorken scaling variable 3{dot operator}10 -5 ≤x≤5{dot operator}10 -2 . The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W ± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined.",
author = "{HERAFitter developers’ team} and H. Abramowicz and I. Abt and L. Adamczyk and M. Adamus and R. Aggarwal and C. Alexa and V. Andreev and S. Antonelli and P. Antonioli and A. Antonov and M. Arneodo and O. Arslan and V. Aushev and Y. Aushev and O. Bachynska and A. Baghdasaryan and S. Baghdasaryan and A. Bamberger and Barakbaev, {A. N.} and G. Barbagli and G. Bari and F. Barreiro and W. Bartel and N. Bartosik and D. Bartsch and M. Basile and K. Begzsuren and O. Behnke and J. Behr and U. Behrens and L. Bellagamba and A. Belousov and P. Belov and A. Bertolin and S. Bhadra and M. Bindi and C. Blohm and A. Fedotov and A. Fomenko and D. Gladkov and Kim, {J. Y.} and A. Lebedev and Lukina, {O. Y.} and I. Makarenko and A. Morozov and D. Nikitin and S. Rusakov and Savin, {A. A.} and Vlasov, {N. N.} and Z. Zhang",
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doi = "10.1140/epjc/s10052-013-2311-3",
language = "English",
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Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA. / HERAFitter developers’ team.

In: European Physical Journal C, Vol. 73, No. 2, 2311, 01.01.2013, p. 1-26.

Research output

TY - JOUR

T1 - Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA

AU - HERAFitter developers’ team

AU - Abramowicz, H.

AU - Abt, I.

AU - Adamczyk, L.

AU - Adamus, M.

AU - Aggarwal, R.

AU - Alexa, C.

AU - Andreev, V.

AU - Antonelli, S.

AU - Antonioli, P.

AU - Antonov, A.

AU - Arneodo, M.

AU - Arslan, O.

AU - Aushev, V.

AU - Aushev, Y.

AU - Bachynska, O.

AU - Baghdasaryan, A.

AU - Baghdasaryan, S.

AU - Bamberger, A.

AU - Barakbaev, A. N.

AU - Barbagli, G.

AU - Bari, G.

AU - Barreiro, F.

AU - Bartel, W.

AU - Bartosik, N.

AU - Bartsch, D.

AU - Basile, M.

AU - Begzsuren, K.

AU - Behnke, O.

AU - Behr, J.

AU - Behrens, U.

AU - Bellagamba, L.

AU - Belousov, A.

AU - Belov, P.

AU - Bertolin, A.

AU - Bhadra, S.

AU - Bindi, M.

AU - Blohm, C.

AU - Fedotov, A.

AU - Fomenko, A.

AU - Gladkov, D.

AU - Kim, J. Y.

AU - Lebedev, A.

AU - Lukina, O. Y.

AU - Makarenko, I.

AU - Morozov, A.

AU - Nikitin, D.

AU - Rusakov, S.

AU - Savin, A. A.

AU - Vlasov, N. N.

AU - Zhang, Z.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σ red cc̄ for charm production are obtained in the kinematic range of photon virtuality 2. 5≤Q 2 ≤2000 GeV 2 and Bjorken scaling variable 3{dot operator}10 -5 ≤x≤5{dot operator}10 -2 . The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W ± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined.

AB - Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σ red cc̄ for charm production are obtained in the kinematic range of photon virtuality 2. 5≤Q 2 ≤2000 GeV 2 and Bjorken scaling variable 3{dot operator}10 -5 ≤x≤5{dot operator}10 -2 . The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W ± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined.

UR - http://www.scopus.com/inward/record.url?scp=84876342391&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-013-2311-3

DO - 10.1140/epjc/s10052-013-2311-3

M3 - Article

AN - SCOPUS:84876342391

VL - 73

SP - 1

EP - 26

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 2

M1 - 2311

ER -