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

Abramowicz, H.; Abt, I.; Adamczyk, L.; Adamus, M.; Aggarwal, R.; Alexa, C.; Andreev, V.; Antonelli, S.; Antonioli, P.; Антонов, А.; Arneodo, M.; Arslan, O.; Aushev, V.; Aushev, Y.; Bachynska, O.; Baghdasaryan, A.; Baghdasaryan, S.; Bamberger, A.; Barakbaev, A. N.; Barbagli, G.; Bari, G.; Barreiro, F.; Bartel, W.; Bartosik, N.; Bartsch, D.; Basile, M.; Begzsuren, K.; Behnke, O.; Behr, J.; Behrens, U.; Bellagamba, L.; Belousov, A.; Belov, Pavel A.; Bertolin, A.; Bhadra, S.; Bindi, M.; Blohm, C.; Bokhonov, V.; Bondarenko, Kyrylo; Boos, E.; Borras, K.; Boscherini, D.; Bot, D.; Boudry, V.; Božović-Jelisavc̆ić, I.; Bołd, T.; Bruemmer, N.; Braciník, J.; Brandt, G.; Brinkmann, Martin; Brisson, V.; Britzger, D.; Brock, I.; Brownson, E.; Brugnera, R.; Bruni, A.; Bruni, G.; Brzozowska, B.; Bunyatyan, A.; Bussey, P.; Bylinkin, A.; Bylsma, B.; Bystritskaya, L.; Caldwell, A.; Campbell, A. J.; Avila, K. B. Cantun; Capua, M.; Carlin, R.; Catterall, C. D.; Ceccopieri, Federico Alberto; C̆erný, K.; Chekanov, S.; Chekelian, V.; Chwastowski, J. J.; Ciborowski, J.; Ciesielski, R.; Cifarelli, L.; Cindolo, F.; Contin, A.; Contreras, J. G.; Cooper-Sarkar, A. M.; Coppola, N.; Corradi, M.; Corriveau, F.; Costa, M.; Cvach, J.; D’Agostini, G.; Dainton, J. B.; Corso, F. Dal; Daum, K.; Delvax, J.; Dementiev, R. K.; Derrick, M.; Devenish, R. C. E.; Pasquale, S. De; Wolf, E. A. De; Peso, J. Del; Diaconu, C.; Dobre, M.; Dobur, D.; Dodonov, V.; Dolgoshein, B. A.; Dolinska, G.; Dossanov, A.; Doyle, A. T.; Drugakov, V.; Durkin, L. S.; Dusini, S.; Eckerlin, G.; Egli, S.; Eisenberg, Y.; Elsen, E.; Ermolov, P.; Eskreys, A.; Fang, S. S.; Favart, L.; Fazio, S.; Fedotov, A.; Felst, R.; Feltesse, J.; Ferencei, J.; Ferrando, J.; Ferrero, M. I.; Figiel, J.; Fischer, D.; Fleischer, M.; Fomenko, A.; Foster, B.; Gabathuler, E.; Gach, G. P.; Galas, A.; Gallo, E.; Garfagnini, A.; Gayler, J.; Geiser, A.; Ghazaryan, S.; Gialas, I.; Gizhko, A.; Gladilin, L. K.; Gladkov, D.; Glasman, C.; Glazov, A.; Goerlich, L.; Gogitidze, N.; Gogota, O.; Golubkov, Yu. A.; Goettlicher, P.; Gouzevitch, M.; Grab, C.; Grabowska-Bołd, I.; Grebenyuk, A.; Grebenyuk, J.; Greenshaw, T.; Gregor, I. M.; Grigorescu, G.; Grindhammer, G.; Grzelak, G.; Gueta, O.; Guzik, M. P.; Gwenlan, C.; Huettmann, A.; Haas, T.; Habib, S.; Haidt, D.; Hain, W.; Hamatsu, R.; Hart, J. C.; Hartmann, H.; Hartner, G.; Henderson, R. C. W.; Hennekemper, E.; Henschel, H.; Herbst, M.; Herrera, G.; Hildebrandt, M.; Hilger, E.; Hiller, K. H.; Hladký, J.; Hochman, D.; Hoffmann, D.; Hori, R.; Horisberger, R.; Hreus, T.; Huber, Florian; Ibrahim, Zainol Abidin; Iga, Y.; Ingbir, R.; Ishitsuka, M.; Jacquet, M.; Jakob, H.‐P.; Janssen, X.; Januschek, F.; Jones, T. W.; Jönsson, L.; Juengst, M.; Jung, A. W.; Jung, H.; Каденко, І.; Kahle, B.; Kananov, S.; Kanno, T.; Kapichine, M.; Karshon, U.; Karstens, F.; Katkov, I.; Kaur, P.; Kaur, M.; Kenyon, I. R.; Keramidas, A.; Khein, L. A.; Kiesling, C.; Kim, J. Y.; Kisielewska, D.; Kitamura, S.; Klanner, R.; Klein, M.; Klein, U.; Kleinwort, C.; Koetz, U.; Koffeman, E.; Kogler, R.; Kondrashova, N.; Kononenko, O.; Kooijman, P.; Korol, Ie.; Korzhavina, I. A.; Kostka, P.; Kotański, A.; Kowalski, H.; Kraemer, M.; Kretzschmar, J.; Krueger, K.; Kuprash, O.; Kuze, M.; Landon, M. P. J.; Lange, W.; Laštovička-Medin, G.; Laycock, P.; Lebedev, A.; Lee, A.; Lendermann, V.; Levchenko, B. B.; Levonian, S.; Levy, A.; Libov, V.; Limentani, S.; Ling, T. Y.; Lipka, K.; Lisovyi, M.; List, B.; List, Jenny; Lobodzinska, E.; Łobodziński, B.; Loehr, B.; Lohmann, W.; Lohrmann, E.; Long, K.; Longhin, A.; Lontkovskyi, D.; López-Fernández, R.; Lubimov, V.; Lukina, Olga; Maeda, J.; Magill, S.; Makarenko, I.; Malinovski, E.; Malka, J.; Mankel, R.; Margotti, A.; Marini, G.; Martin, J. F.; Martyn, H. U.; Mastroberardino, A.; Mattingly, M.C.K.; Maxfield, S. J.; Mehta, A.; Melzer-Pellmann, I.-A.; Mergelmeyer, S.; Meyer, Andreas Bernhard; Meyer, H.; Meyer, J.; Miglioranzi, S.; Mikocki, S.; Milcewicz-Mika, I.; Idris, F. Mohamad; Monaco, V.; Montanari, A.; Moreau, F.; Morozov, A.; Morris, J. V.; Morris, J. D.; Mujkic, K.; Mueller, K.; Musgrave, B.; Nagano, K.; Namsoo, T.; Nania, R.; Naumann, T.; Newman, P. R.; Niebuhr, C.; Nigro, A.; Nikitin, D.; Ye, Ning; Nobe, T.; Notz, D.; Nowak, G.; Nowak, K.; Nowak, R. J.; Nuncio-Quiroz, A. E.; Oh, B.Y.; Okazaki, N.; Olkiewicz, K.; Olsson, J. E.; Onishchuk, Y.; Ozerov, D.; Pahl, P.; Palichik, V.; Pandurović, M.; Papageorgiu, K.; Parenti, A.; Pascaud, C.; Patel, G. D.; Paul, E.; Pawlak, J. M.; Pawlik, B.; Pelfer, P. G.; Pellegrino, A.; Pérez, E.; Perlański, W.; Perrey, H.; Petrukhin, A.; Pićurić, I.; Piotrzkowski, K.; Pirumov, H.; Pitzl, D.; Plačakytė, R.; Pluciński, P.; Pokorny, B.; Pokrovskiy, N. S.; Polifka, R.; Polini, A.; Povh, Bogdan; Proskuryakov, A.S.; Przybycień, M.; Radescu, V.; Raičević, N.; Raval, A.; Ravdandorj, T.; Reeder, D.; Reimer, P.; Reisert, B.; Ren, Z. L.; Repond, J.; Ri, Y.D.; Rizvi, E.; Robertson, A. I.; Robmann, P.; Roloff, P.; Roosen, R.; Rostovtsev, A.; Rotaru, M.; Rubinsky, I.; Tabasco, J. E. Ruiz; Rusakov, S. V.; Ruspa, M.; Sacchi, R.; Šálek, D.; Samson, U.; Sankey, D. P. C.; Sartorelli, G.; Sauter, M.; Sauvan, E.; Savin, A.; Saxon, D. H.; Schioppa, M.; Schlenstedt, S.; Schleper, P.; Schmidke, W. B.; Schmitt, S.; Schneekloth, U.; Schoeffel, L.; Schoenberg, V.; Schoening, A.; Schöerner-Sadenius, T.; Schultz‐Coulon, H.‐C.; Schwartz, J.; Sciulli, F.; Sefkow, F.; Shcheglova, L.M.; Shehzadi, R.; Shimizu, S.; Shushkevich, S.; Singh, Inderpal; Skillicorn, I. O.; Słomiński, W.; Smith, W. H.; Sola, V.; Solano, A.; Soloviev, Y.; Son, D. C.; Sopicki, P.; Sosnovtsev, V.; South, D.; Spaskov, V.; Specka, A.; Спиридонов, А.; Stadie, H.; Stančo, L.; Staykova, Z.; Steder, M.; Stefaniuk, N.; Stella, B.; Stern, A.; Stewart, T. P.; Stifutkin, A.; Stoicea, G.; Stopa, P.; Straumann, U.; Suchkov, S.; Susinno, G.; Suszycki, L.; Sýkora, T.; Sztuk-Dambietz, J.; Szuba, J.; Szuba, D.; Tapper, A.; Tassi, E.; Terrón, J.; Theedt, T.; Thompson, P. D.; Tiecke, H.; Tokushuku, K.; Tomaszewska, J.; Tran, T. H.; Traynor, D.; Truoel, P.; Trusov, V.; Tsakov, I.; Tseepeldorj, B.; Tsurugai, T.; Turcato, M.; Turkot, O.; Turnau, J.; Tymieniecka, T.; Vázquez, M.; Valkárová, A.; Vallée, C.; Mechelen, P. Van; Vazdik, Y.; Verbytskyi, A.; Viazlo, O.; Vlasov, N.; Walczak, R.; Abdullah, Wan Ahmad Tajuddin Wan; Wegener, D.; Whitmore, J. J.; Wichmann, K.; Wiggers, L.; Wing, M.; Wlasenko, M.; Wolf, G.; Wolfe, H.; Wrona, K.; Wuensch, E.; Yaguees-Molina, A. G.; Yamada, S.; Yamazaki, Y.; Yoshida, R.; Youngman, C.; Zabiegalov, O.; Žáček, J.; Zálešâk, J.; Zenaiev, O.; Zeuner, Wolfram Dietrich; Zhang, Zhiqing Philippe; Zhautykov, B.O.; Zhmak, N.; Zichichi, A.; Žlebčík, R.; Zohrabyan, H.; Zolkapli, Z.; Zomer, F.; Zotkin, D.S.; Żarnecki, A. F.

doi:10.1140/epjc/s10052-013-2311-3

Cited by 161 publications

(244 citation statements)

References 83 publications

(148 reference statements)

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“…charm production [30,31] and older data [22] have been combined [32]. Predictions from NLO QCD describe all results reasonably well.…”

Section: Jhep09(2014)127mentioning

confidence: 99%

“…The running MS beauty-quark mass, m b at the scale m b , denoted m b (m b ), is measured using σ bb r , following a procedure similar to that used for a recent extraction of the charmquark mass [32]. This represents the first measurement of the b-quark mass using HERA or any other hadron collider data.…”

Section: Introductionmentioning

confidence: 99%

“…The beauty and charm contributions to the proton structure function F 2 , denoted as F bb 2 and F cc 2 , respectively, as well as beauty and charm reduced cross sections (σ bb r and σ cc r , respectively) were extracted from the double-differential cross section as a function of Q 2 and x. The results are compared to previous measurements and to predictions from perturbative QCD.The running MS beauty-quark mass, m b at the scale m b , denoted m b (m b ), is measured using σ bb r , following a procedure similar to that used for a recent extraction of the charmquark mass [32]. This represents the first measurement of the b-quark mass using HERA or any other hadron collider data.…”

mentioning

confidence: 99%

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Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Abramowicz¹,

Abt²,

Adamczyk³

et al. 2014

J. High Energ. Phys.

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The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q 2 < 1000 GeV 2 using an integrated luminosity of 354 pb −1 . The beauty and charm content in events with at least one jet have been extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of Q 2 , Bjorken x, jet transverse energy and pseudorapidity were measured and compared with next-to-leading-order QCD calculations. The beauty and charm contributions to the proton structure functions were extracted from the double-differential cross section as a function of x and Q 2 . The running beauty-quark mass, m b at the scale m b , was determined from a QCD fit at next-to-leading order to HERA data for the first time and found to be m b (m b ) = 4.07 ± 0.14 (fit) +0.01 −0.07 (mod.) +0.05 −0.00 (param.) +0.08 −0.05 (theo.) GeV.Keywords: Lepton-Nucleon Scattering, QCD, Jets, B physics The ZEUS collaboration 53 IntroductionThe measurement of beauty and charm production in ep collisions at HERA is an important testing ground for perturbative Quantum Chromodynamics (pQCD), since the heavy-quark masses provide a hard scale that allows perturbative calculations to be made. At leading order, the dominant process for heavy-quark production at HERA is boson-gluon fusion (BGF). In this process, a virtual photon emitted by the incoming electron interacts with a gluon from the proton forming a heavy quark-antiquark pair. When the negative squared four-momentum of the virtual photon, Q 2 , is large compared to the proton mass, the interaction is referred to as deep inelastic scattering (DIS). For heavy-quark transverse momenta comparable to the quark mass, next-to-leading-order (NLO) QCD calculations based on the dynamical generation of the massive quarks [1][2][3][4] are expected to provide reliable predictions. Beauty and charm production in DIS has been measured using several methods by the H1 [5][6][7][8][9][10][11][12][13][14][15][16] and ZEUS [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] Inclusive jet cross sections in beauty and charm events are used in the analysis presented here to extract the heavy-quark contribution to the proton structure function F 2 with high precision, and to measure the b-quark mass. For this purpose, the long lifetimes of the weakly decaying b and c hadrons, which make the reconstruction of their decay vertices possible, as well as their large masses were exploited. Two discriminating variables, the significance of the reconstructed decay length and the invariant mass of the charged tracks associated with the decay vertex (secondary vertex), were used. This inclusive tagging method leads to a substantial increase in statistics with respect to previous ZEUS measurements.Differential cross sections as a function of Q 2 , the Bjorken scaling variable, x, jet transverse energy, E jet T , and pseudorapidit...

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“…charm production [30,31] and older data [22] have been combined [32]. Predictions from NLO QCD describe all results reasonably well.…”

Section: Jhep09(2014)127mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Abramowicz¹,

Abt²,

Adamczyk³

et al. 2014

J. High Energ. Phys.

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“…deep inelastic scattering (DIS) data [34,35], and used in a parton shower calculation [18] to make predictions for W -boson + jets hadro-production, which can be compared with LHC experimental measurements [36,37].…”

Section: Jhep01(2018)070mentioning

confidence: 99%

“…By introducing a random number R 0 in [0, 1], we generate the value µ i+1 by solving eq. (2.27) for µ i+1 at a given µ i , 35) JHEP01(2018)070 Figure 1. Illustration of the evolution process by iteration: a parton can evolve from scale µ i to scale µ without any branching (left), having one branching (middle), two branchings (right) and so on.…”

Section: Solution Of the Evolution Equation Applying A Monte Carlo Mementioning

confidence: 99%

Collinear and TMD quark and gluon densities from parton branching solution of QCD evolution equations

Hautmann

Jung

Žlebčík

et al. 2018

J. High Energ. Phys.

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103

105

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We study parton-branching solutions of QCD evolution equations and present a method to construct both collinear and transverse momentum dependent (TMD) parton densities from this approach. We work with next-to-leading-order (NLO) accuracy in the strong coupling. Using the unitarity picture in terms of resolvable and non-resolvable branchings, we analyze the role of the soft-gluon resolution scale in the evolution equations. For longitudinal momentum distributions, we find agreement of our numerical calculations with existing evolution programs at the level of better than 1% over a range of five orders of magnitude both in evolution scale and in longitudinal momentum fraction. We make predictions for the evolution of transverse momentum distributions. We perform fits to the high-precision deep inelastic scattering (DIS) structure function measurements, and we present a set of NLO TMD distributions based on the parton branching approach.

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Absolute Cross Sections

Rabbertz

2016

Springer Tracts in Modern Physics

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

Cited by 161 publications

References 83 publications

Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Collinear and TMD quark and gluon densities from parton branching solution of QCD evolution equations

Absolute Cross Sections

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