Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass
Creators: name: ZEUS Collaboration
name: Abramowicz, H.
name: Abt, I.
name: Adamczyk, L.
name: Adamus, M.
name: Aggarwal, R.
name: Antonelli, S.
name: Arslan, O.
name: Aushev, V.
name: Aushev, Y.
name: Bachynska, O.
name: Barakbaev, A. N.
name: Bartosik, N.
name: Behnke, O.
name: Behr, J.
name: Behrens, U.
name: Bertolin, A.
name: Bhadra, S.
name: Bloch, I.
name: Bokhonov, V.
name: Boos, E. G.
name: Borras, K.
name: Brock, I.
name: Brugnera, R.
name: Bruni, A.
name: Brzozowska, B.
name: Bussey, P. J.
name: Caldwell, A.
name: Capua, M.
name: Catterall, C. D.
name: Chwastowski, J.
name: Ciborowski, J.
name: Ciesielski, R.
name: Cooper-Sarkar, A. M.
name: Corradi, M.
name: Corriveau, F.
name: D'Agostini, G.
name: Dementiev, R. K.
name: Devenish, R. C. E.
name: Dolinska, G.
name: Drugakov, V.
name: Dusini, S.
name: Ferrando, J.
name: Figiel, J.
name: Foster, B.
name: Gach, G.
name: Garfagnini, A.
name: Geiser, A.
name: Gizhko, A.
name: Gladilin, L. K.
name: Gogota, O.
name: Golubkov, Yu. A.
name: Grebenyuk, J.
name: Gregor, I.
name: Grzelak, G.
name: Gueta, O.
name: Guzik, M.
name: Hain, W.
name: Hartner, G.
name: Hochman, D.
name: Hori, R.
name: Ibrahim, Z. A.
name: Iga, Y.
name: Ishitsuka, M.
name: Iudin, A.
name: Januschek, F.
name: Kadenko, I.
name: Kananov, S.
name: Kanno, T.
name: Karshon, U.
name: Kaur, M.
name: Kaur, P.
name: Khein, L. A.
name: Kisielewska, D.
name: Klanner, R.
name: Klein, U.
name: Kondrashova, N.
name: Kononenko, O.
name: Korol, Ie.
name: Korzhavina, I. A.
name: Kotański, A.
name: Kötz, U.
name: Kovalchuk, N.
name: Kowalski, H.
name: Kuprash, O.
name: Kuze, M.
name: Levchenko, B. B.
name: Levy, A.
name: Libov, V.
name: Limentani, S.
name: Lisovyi, M.
name: Lobodzinska, E.
name: Lohmann, W.
name: Löhr, B.
name: Lohrmann, E.
name: Longhin, A.
name: Lontkovskyi, D.
name: Lukina, O. Yu.
name: Maeda, J.
name: Makarenko, I.
name: Malka, J.
name: Martin, J. F.
name: Mergelmeyer, S.
name: Idris, F. Mohamad
name: Mujkic, K.
name: Myronenko, V.
name: Nagano, K.
name: Nigro, A.
name: Nobe, T.
name: Notz, D.
name: Nowak, R. J.
name: Olkiewicz, K.
name: Onishchuk, Yu.
name: Paul, E.
name: Perlański, W.
name: Perrey, H.
name: Pokrovskiy, N. S.
name: Proskuryakov, A. S.
name: Przybycień, M.
name: Raval, A.
name: Roloff, P.
name: Rubinsky, I.
name: Ruspa, M.
name: Samojlov, V.
name: Saxon, D. H.
name: Schioppa, M.
name: Schmidke, W. B.
name: Schneekloth, U.
name: Schörner-Sadenius, T.
name: Schwartz, J.
name: Shcheglova, L. M.
name: Shehzadi, R.
name: Shevchenko, R.
name: Shkola, O.
name: Singh, I.
name: Skillicorn, I. O.
name: Słomiński, W.
name: Sola, V.
name: Solano, A.
name: Spiridonov, A.
name: Stanco, L.
name: Stefaniuk, N.
name: Stern, A.
name: Stewart, T. P.
name: Stopa, P.
name: Sztuk-Dambietz, J.
name: Szuba, D.
name: Szuba, J.
name: Tassi, E.
name: Temiraliev, T.
name: Tokushuku, K.
name: Tomaszewska, J.
name: Trofymov, A.
name: Trusov, V.
name: Tsurugai, T.
name: Turcato, M.
name: Turkot, O.
name: Tymieniecka, T.
name: Verbytskyi, A.
name: Viazlo, O.
name: Walczak, R.
name: Abdullah, W. A. T. Wan
name: Wichmann, K.
name: Wing, M.
name: Wolf, G.
name: Yamada, S.
name: Yamazaki, Y.
name: Zakharchuk, N.
name: Żarnecki, A. F.
name: Zawiejski, L.
name: Zenaiev, O.
name: Zhautykov, B. O.
name: Zhmak, N.
name: Zotkin, D. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: 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 &lt; Q^2 &lt; 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 4.07 \pm 0.14 (fit} ^{+0.01}_{-0.07} (mod.) ^{+0.05}_{-0.00} (param.) ^{+0.08}_{-0.05} (theo) GeV.
description: 63 pages, 14 figures, 20 tables. Version accepted by JHEP