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

HERA collaboration

doi:10.1140/epjc/s10052-018-5848-3

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

HERA collaboration

Physics and Astronomy

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Abstract

Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon 2.5GeV2≤Q2≤2000GeV2 and Bjorken scaling variable 3 · 10 ^{- 5}≤ x_Bj≤ 5 · 10 ^{- 2}. The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charm- and beauty-quark masses are determined as mc(mc)=1.290-0.041+0.046(exp/fit)-0.014+0.062(model)-0.031+0.003(parameterisation) GeV and mb(mb)=4.049-0.109+0.104(exp/fit)-0.032+0.090(model)-0.031+0.001(parameterisation)GeV.

Original language	English
Article number	473
Journal	European Physical Journal C
Volume	78
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-018-5848-3
Publication status	E-pub ahead of print - 9 Jun 2018

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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@article{f63baf0cbed74ff792836186652a5d76,

title = "Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic ep scattering at HERA",

abstract = "Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon 2.5GeV2≤Q2≤2000GeV2 and Bjorken scaling variable 3 · 10 - 5≤ xBj≤ 5 · 10 - 2. The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charm- and beauty-quark masses are determined as mc(mc)=1.290-0.041+0.046(exp/fit)-0.014+0.062(model)-0.031+0.003(parameterisation) GeV and mb(mb)=4.049-0.109+0.104(exp/fit)-0.032+0.090(model)-0.031+0.001(parameterisation)GeV.",

author = "{HERA collaboration} and H. Abramowicz and I. Abt and L. Adamczyk and M. Adamus and R. Aggarwal and V. Andreev and S. Antonelli and V. Aushev and A. Baghdasaryan and K. Begzsuren and O. Behnke and U. Behrens and A. Belousov and A. Bertolin and I. Bloch and A. Bolz and V. Boudry and G. Brandt and V. Brisson and D. Britzger and I. Brock and Brook, {N. H.} and R. Brugnera and A. Bruni and A. Buniatyan and Bussey, {P. J.} and A. Bylinkin and L. Bystritskaya and A. Caldwell and Campbell, {A. J.} and Avila, {K. B.Cantun} and M. Capua and Catterall, {C. D.} and K. Cerny and V. Chekelian and J. Chwastowski and J. Ciborowski and R. Ciesielski and Contreras, {J. G.} and Cooper-Sarkar, {A. M.} and M. Corradi and J. Cvach and Dainton, {J. B.} and K. Daum and Dementiev, {R. K.} and Devenish, {R. C.E.} and C. Diaconu and M. Dobre and Newman, {P. R.} and Thompson, {P. D.}",

year = "2018",

month = jun,

day = "9",

doi = "10.1140/epjc/s10052-018-5848-3",

language = "English",

volume = "78",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer",

number = "6",

}

TY - JOUR

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

AU - HERA collaboration

AU - Abramowicz, H.

AU - Abt, I.

AU - Adamczyk, L.

AU - Adamus, M.

AU - Aggarwal, R.

AU - Andreev, V.

AU - Antonelli, S.

AU - Aushev, V.

AU - Baghdasaryan, A.

AU - Begzsuren, K.

AU - Behnke, O.

AU - Behrens, U.

AU - Belousov, A.

AU - Bertolin, A.

AU - Bloch, I.

AU - Bolz, A.

AU - Boudry, V.

AU - Brandt, G.

AU - Brisson, V.

AU - Britzger, D.

AU - Brock, I.

AU - Brook, N. H.

AU - Brugnera, R.

AU - Bruni, A.

AU - Buniatyan, A.

AU - Bussey, P. J.

AU - Bylinkin, A.

AU - Bystritskaya, L.

AU - Caldwell, A.

AU - Campbell, A. J.

AU - Avila, K. B.Cantun

AU - Capua, M.

AU - Catterall, C. D.

AU - Cerny, K.

AU - Chekelian, V.

AU - Chwastowski, J.

AU - Ciborowski, J.

AU - Ciesielski, R.

AU - Contreras, J. G.

AU - Cooper-Sarkar, A. M.

AU - Corradi, M.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Daum, K.

AU - Dementiev, R. K.

AU - Devenish, R. C.E.

AU - Diaconu, C.

AU - Dobre, M.

AU - Newman, P. R.

AU - Thompson, P. D.

PY - 2018/6/9

Y1 - 2018/6/9

N2 - Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon 2.5GeV2≤Q2≤2000GeV2 and Bjorken scaling variable 3 · 10 - 5≤ xBj≤ 5 · 10 - 2. The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charm- and beauty-quark masses are determined as mc(mc)=1.290-0.041+0.046(exp/fit)-0.014+0.062(model)-0.031+0.003(parameterisation) GeV and mb(mb)=4.049-0.109+0.104(exp/fit)-0.032+0.090(model)-0.031+0.001(parameterisation)GeV.

AB - Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon 2.5GeV2≤Q2≤2000GeV2 and Bjorken scaling variable 3 · 10 - 5≤ xBj≤ 5 · 10 - 2. The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charm- and beauty-quark masses are determined as mc(mc)=1.290-0.041+0.046(exp/fit)-0.014+0.062(model)-0.031+0.003(parameterisation) GeV and mb(mb)=4.049-0.109+0.104(exp/fit)-0.032+0.090(model)-0.031+0.001(parameterisation)GeV.

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U2 - 10.1140/epjc/s10052-018-5848-3

DO - 10.1140/epjc/s10052-018-5848-3

M3 - Article

AN - SCOPUS:85048571444

SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 473

ER -

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

Abstract

ASJC Scopus subject areas

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