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

H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, V. Andreev, S. Antonelli, V. Aushev, A. Baghdasaryan, K. Begzsuren, O. Behnke, U. Behrens, A. Belousov, A. Bertolin, I. Bloch, A. Bolz, V. Boudry, G. Brandt, V. Brisson, D. BritzgerI. Brock, N. H. Brook, R. Brugnera, A. Bruni, A. Buniatyan, P. J. Bussey, A. Bylinkin, L. Bystritskaya, A. Caldwell, A. J. Campbell, K. B.Cantun Avila, M. Capua, C. D. Catterall, K. Cerny, V. Chekelian, J. Chwastowski, J. Ciborowski, R. Ciesielski, J. G. Contreras, A. M. Cooper-Sarkar, M. Corradi, J. Cvach, J. B. Dainton, K. Daum, R. K. Dementiev, R. C.E. Devenish, C. Diaconu, M. Dobre, S. Dusini, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, M. Fleischer, A. Fomenko, B. Foster, E. Gallo, A. Garfagnini, J. Gayler, A. Geiser, A. Gizhko, L. K. Gladilin, L. Goerlich, N. Gogitidze, Yu A. Golubkov, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, G. Grindhammer, G. Grzelak, C. Gwenlan, D. Haidt, R. C.W. Henderson, J. Hladkỳ, O. Hlushchenko, D. Hochman, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, Z. A. Ibrahim, Y. Iga, M. Jacquet, X. Janssen, N. Z. Jomhari, A. W. Jung, H. Jung, I. Kadenko, S. Kananov, M. Kapichine, U. Karshon, J. Katzy, P. Kaur, C. Kiesling, D. Kisielewska, R. Klanner, M. Klein, U. Klein, C. Kleinwort, R. Kogler, I. A. Korzhavina, P. Kostka, A. Kotański, N. Kovalchuk, H. Kowalski, J. Kretzschmar, D. Krücker, K. Krüger, B. Krupa, O. Kuprash, M. Kuze, M. P.J. Landon, W. Lange, P. Laycock, A. Lebedev, B. B. Levchenko, S. Levonian, A. Levy, V. Libov, K. Lipka, M. Lisovyi, B. List, J. List, B. Lobodzinski, B. Löhr, E. Lohrmann, A. Longhin, O. Yu Lukina, I. Makarenko, E. Malinovski, J. Malka, H. U. Martyn, S. Masciocchi, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, F. Mohamad Idris, N. Mohammadnasir, A. Morozov, K. Müller, V. Myronenko, K. Nagano, J. D. Nam, Th Naumann, P. R. Newman, M. Nicassio, C. Niebuhr, G. Nowak, J. E. Olsson, J. Onderwaater, Yu Onishchuk, D. Ozerov, C. Pascaud, G. D. Patel, E. Paul, E. Perez, W. Perlański, A. Petrukhin, I. Picuric, H. Pirumov, D. Pitzl, N. S. Pokrovskiy, R. Polifka, A. Polini, M. Przybycień, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, M. Ruspa, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, D. H. Saxon, M. Schioppa, S. Schmitt*, U. Schneekloth, L. Schoeffel, A. Schöning, T. Schörner-Sadenius, F. Sefkow, I. Selyuzhenkov, L. M. Shcheglova, S. Shushkevich, Yu Shyrma, I. O. Skillicorn, W. Słomiński, A. Solano, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, L. Stanco, M. Steder, N. Stefaniuk, B. Stella, A. Stern, P. Stopa, U. Straumann, B. Surrow, T. Sykora, J. Sztuk-Dambietz, E. Tassi, P. D. Thompson, K. Tokushuku, J. Tomaszewska, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, A. Valkárová, C. Vallée, P. Vanmechelen, Y. Vazdik, A. Verbytskyi, W. A.T.Wan Abdullah, D. Wegener, K. Wichmann, M. Wing, E. Wünsch, S. Yamada, Y. Yamazaki, J. Žáček, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, Z. Zhang, B. O. Zhautykov, R. Žlebčík, H. Zohrabyan, F. Zomer

*Corresponding author for this work

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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≤ 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.

Original languageEnglish
Article number473
JournalEuropean Physical Journal C
Volume78
Issue number6
DOIs
StatePublished - 1 Jun 2018

Funding

FundersFunder number
48778-F aaRussian Foundation for Basic Research
Not addedST/N000463/1
Annecy-le-Vieux
DESY q Now at Kobe University
Department of Technology
FNRS-FWO-Vlaanderen
FRG05H09GUF, 05H09VHF, 05H09VHC, SFB 676
Italian National Institute for Nuclear Physics
Ministry of Education, Malaysia z Supported
Ministry of Science of Montenegro05-1/3-3352
Polish Air Force Academy in Deblin o Also at Ulaanbaatar University
Rosatom ab Russian Foundation for Sciences14-50-00150
Univer-siti MalayaER004-2012A
Université de Savoie
Natural Sciences and Engineering Research Council of Canada
Science and Technology Facilities CouncilST/N000447/1, GRIDPP
Science and Technology Facilities Council
Department of Science and Technology, Ministry of Science and Technology, India
Deutsche ForschungsgemeinschaftRU006-2013, RP012B-13AFR, UM.C/625/1/HIR/149, RP012A-13AFR
Deutsche Forschungsgemeinschaft
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Ministerstvo Školství, Mládeže a TělovýchovyINGO-LG14033
Ministerstvo Školství, Mládeže a Tělovýchovy
Russian Foundation for Basic Research1329.2008.2
Russian Foundation for Basic Research
Bundesministerium für Bildung und Forschung05 H09PDF
Bundesministerium für Bildung und Forschung
Agentschap voor Innovatie door Wetenschap en Technologie
Consejo Nacional de Ciencia y Tecnología
Ministry of Education and Science of the Russian FederationNSh-7989.2016.2
Ministry of Education and Science of the Russian Federation
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum NaukiDEC-2014/13/B/ST2
Narodowe Centrum Nauki
Centre National de la Recherche Scientifique
Autoritatea Natională pentru Cercetare StiintificăPN 09370101
Autoritatea Natională pentru Cercetare Stiintifică
Savitribai Phule Pune University
Ministry of Science and Higher Education of the Russian FederationDPN/N168/DESY/2009
Ministry of Science and Higher Education of the Russian Federation
Institut National de Physique Nucléaire et de Physique des Particules
Agensi Nuklear Malaysia

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