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

被引：74

作者：

Abramowicz, H. ^{[56
]}

Abt, I ^{[40
]}

Adamczyk, L. ^{[24
]}

Adamus, M. ^{[67
]}

Aggarwal, R. ^{[9
]}

Andreev, V ^{[36
]}

Antonelli, S. ^{[6
]}

Aushev, V ^{[28
]}

Baghdasaryan, A. ^{[70
]}

Begzsuren, K. ^{[63
]}

Behnke, O. ^{[21
]}

Behrens, U. ^{[21
]}

Belousov, A. ^{[36
]}

Bertolin, A. ^{[44
]}

Bloch, I ^{[72
]}

Bolz, A. ^{[22
]}

Boudry, V ^{[47
]}

Brandt, G. ^{[19
]}

Brisson, V ^{[42
]}

Britzger, D. ^{[22
]}

Brock, I ^{[7
]}

Brook, N. H. ^{[32
]}

Brugnera, R. ^{[45
,46
]}

Bruni, A. ^{[6
]}

Buniatyan, A. ^{[5
]}

Bussey, P. J. ^{[18
]}

Bylinkin, A. ^{[38
]}

Bystritskaya, L. ^{[35
]}

Caldwell, A. ^{[40
]}

Campbell, A. J. ^{[21
]}

Cantun Avila, K. B. ^{[34
]}

Capua, M. ^{[10
,11
]}

Catterall, C. D. ^{[41
]}

Cerny, K. ^{[51
]}

Chekelian, V ^{[40
]}

Chwastowski, J. ^{[23
]}

Ciborowski, J. ^{[66
]}

Ciesielski, R. ^{[21
]}

Contreras, J. G. ^{[34
]}

Cooper-Sarkar, A. M. ^{[43
]}

Corradi, M. ^{[6
]}

Cvach, J. ^{[50
]}

Dainton, J. B. ^{[30
]}

Daum, K. ^{[69
]}

Dementiev, R. K. ^{[39
]}

Devenish, R. C. E. ^{[43
]}

Diaconu, C. ^{[33
]}

Dobre, M. ^{[8
]}

Dusini, S. ^{[44
]}

Eckerlin, G. ^{[21
]}

机构：

[1] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[2] Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan

[3] Interuniv Inst High Energies ULB VUB, Brussels, Belgium

[4] Univ Antwerp, Antwerp, Belgium

[5] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[6] INFN Bologna, Bologna, Italy

[7] Univ Bonn, Phys Inst, Bonn, Germany

[8] Horia Hulubei Natl Inst R&D Phys & Nucl Engn IFIN, Bucharest, Romania

[9] Panjab Univ, Dept Phys, Chandigarh, India

[10] Univ Calabria, Phys Dept, Cosenza, Italy

[11] Univ Calabria, INFN, Cosenza, Italy

[12] GSI Helmholtzzentn Schwerionenforsch GmbH, Darmstadt, Germany

[13] STFC, Rutherford Appleton Lab, Didcot, Oxon, England

[14] TU Dortmund, Inst Phys, Dortmund, Germany

[15] Joint Inst Nucl Res, Dubna, Russia

[16] CERN, Geneva, Switzerland

[17] CE Saclay, Irfu SPP, Gif Sur Yvette, France

[18] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland

[19] Univ Gottingen, Phys Inst 2, Gottingen, Germany

[20] Univ Hamburg, Inst Expt Phys, Hamburg, Germany

[21] Heidelberg Univ, Deutsch Elektronen Synchrotron DESY, Heidelberg, Germany

[22] Heidelberg Univ, Phys Inst, Heidelberg, Germany

[23] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[24] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland

[25] Jagellonian Univ, Dept Phys, Krakow, Poland

[26] Univ Malaya, Natl Ctr Particle Phys, Kuala Lumpur 50603, Malaysia

[27] Natl Acad Sci, Inst Nucl Res, Kiev, Ukraine

[28] Natl Taras Shevchenko Univ Kyiv, Dept Nucl Phys, Kiev, Ukraine

[29] Univ Lancaster, Dept Phys, Lancaster, England

[30] Univ Liverpool, Dept Phys, Liverpool, Merseyside, England

[31] Queen Mary Univ London, Sch Phys & Astron, London, England

[32] UCL, Phys & Astron Dept, London, England

[33] Aix Marseille Univ, CNRS, IN2P3, CPPM UMR 7346, F-13288 Marseille, France

[34] CINVESTAV, Dept Fis Aplicada, Merida, Yuc, Mexico

[35] Inst Theoret & Expt Phys, Moscow, Russia

[36] Lebedev Phys Inst, Moscow, Russia

[37] RAS, Inst Informat Transmiss Problems, Moscow, Russia

[38] Moscow Inst Phys & Technol, Dolgoprudnyi, Moscow Region, Russia

[39] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia

[40] Max Planck Inst Phys & Astrophys, Munich, Germany

[41] York Univ, Dept Phys, N York, ON M3J 1P3, Canada

[42] Univ Paris Sud, LAL, CNRS, IN2P3, Orsay, France

[43] Univ Oxford, Dept Phys, Oxford, England

[44] INFN Padova, Padua, Italy

[45] Univ Padua, Dipartimento Fis & Astron, Padua, Italy

[46] INFN Padua, Padua, Italy

[47] Ecole Polytech, LLR, CNRS, IN2P3, Palaiseau, France

[48] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA

[49] Univ Montenegro, Fac Sci, Podgorica, Montenegro

[50] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

来源：

EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 06期

关键词：

D-ASTERISK(+/-) MESON PRODUCTION; 3-LOOP SPLITTING FUNCTIONS; OPERATOR MATRIX-ELEMENTS; H1 VERTEX DETECTOR; D-ASTERISK; FRAGMENTATION FUNCTIONS; O(ALPHA-S) CORRECTIONS; PARTON DENSITIES; E&E ANNIHILATION; HEAVY QUARKS;

D O I：

10.1140/epjc/s10052-018-5848-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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 2.5 GeV2 <= Q(2) <= 2000 GeV2 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 charmand beauty-quark masses are determined as m(c)(m(c)) = 1.290(-0.041)(+0.046)(exp/fit)(-0.014)(+0.062)(model)(0.031)(+0.003)(parameterisation) GeV and m(b)(m(b)) = 4.049(-0.109)(+0.104)(exp/fit)(-0.032)(+0.090)(model)(-0.031)(+0.001)(parameterisation) GeV.

引用

页数：32

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