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Abstract
The inclusive photoproduction of D∗ mesons and of D∗-tagged dijets is investigated with the H1 detector at the ep collider HERA. The kinematic region covers small photon virtualities Q2<2 GeV2 and photon–proton centre-of-mass energies of 100<Wγp<285 GeV. Inclusive D∗ meson differential cross sections are measured for central rapidities |η(D∗)|<1.5 and transverse momenta pT(D∗)>1.8 GeV. The heavy quark production process is further investigated in events with at least two jets with transverse momentum pT(jet)>3.5 GeV each, one containing the D∗ meson. Differential cross sections for D∗-tagged dijet production and for correlations between the jets are measured in the range |η(D∗)|<1.5 and pT(D∗)>2.1 GeV. The results are compared with predictions from Monte Carlo simulations and next-to-leading order perturbative QCD calculations.
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Details
Title
Measurement of inclusive and dijet D∗ meson cross sections in photoproduction at HERA
Author
Aaron, F. D. 1 ; Alexa, C. 1 ; Andreev, V. 2 ; Backovic, S. 3 ; Baghdasaryan, A. 4 ; Baghdasaryan, S. 4 ; Barrelet, E. 5 ; Bartel, W. 6 ; Begzsuren, K. 7 ; Belousov, A. 2 ; Belov, P. 6 ; Bizot, J. C. 8 ; Boenig, M.-O. 9 ; Boudry, V. 10 ; Bozovic-Jelisavcic, I. 11 ; Bracinik, J. 12 ; Brandt, G. 6 ; Brinkmann, M. 6 ; Brisson, V. 8 ; Britzger, D. 6 ; Bruncko, D. 13 ; Bunyatyan, A. 14 ; Buschhorn, G. 15 ; Bystritskaya, L. 16 ; Campbell, A. J. 6 ; Cantun Avila, K. B. 17 ; Ceccopieri, F. 18 ; Cerny, K. 19 ; Cerny, V. 13 ; Chekelian, V. 15 ; Contreras, J. G. 17 ; Coughlan, J. A. 20 ; Cvach, J. 21 ; Dainton, J. B. 22 ; Daum, K. 23 ; Delcourt, B. 8 ; Delvax, J. 18 ; De Wolf, E. A. 18 ; Diaconu, C. 24 ; Dobre, M. 25 ; Dodonov, V. 26 ; Dossanov, A. 15 ; Dubak, A. 3 ; Eckerlin, G. 6 ; Egli, S. 27 ; Eliseev, A. 2 ; Elsen, E. 6 ; Favart, L. 18 ; Fedotov, A. 16 ; Felst, R. 6 ; Feltesse, J. 28 ; Ferencei, J. 13 ; Fischer, D.-J. 6 ; Fleischer, M. 6 ; Fomenko, A. 2 ; Gabathuler, E. 22 ; Gayler, J. 6 ; Ghazaryan, S. 6 ; Glazov, A. 6 ; Goerlich, L. 29 ; Gogitidze, N. 2 ; Gouzevitch, M. 6 ; Grab, C. 30 ; Grebenyuk, A. 6 ; Greenshaw, T. 22 ; Grindhammer, G. 15 ; Habib, S. 6 ; Haidt, D. 6 ; Helebrant, C. 6 ; Henderson, R. C. W. 31 ; Hennekemper, E. 32 ; Henschel, H. 33 ; Herbst, M. 32 ; Herrera, G. 34 ; Hildebrandt, M. 27 ; Hiller, K. H. 33 ; Hoffmann, D. 24 ; Horisberger, R. 27 ; Hreus, T. 18 ; Huber, F. 35 ; Jacquet, M. 8 ; Janssen, X. 18 ; Jönsson, L. 36 ; Jung, A. W. 32 ; Jung, H. 37 ; Kapichine, M. 38 ; Kenyon, I. R. 12 ; Kiesling, C. 15 ; Klein, M. 22 ; Kleinwort, C. 6 ; Kluge, T. 22 ; Kogler, R. 6 ; Kostka, P. 33 ; Krämer, M. 6 ; Kretzschmar, J. 22 ; Krüger, K. 32 ; Landon, M. P. J. 39 ; Lange, W. 33 ; Laštovička-Medin, G. 3 ; Laycock, P. 22 ; Lebedev, A. 2 ; Lendermann, V. 32 ; Levonian, S. 6 ; Lipka, K. 6 ; List, B. 6 ; List, J. 6 ; Lopez-Fernandez, R. 34 ; Lubimov, V. 16 ; Makankine, A. 38 ; Malinovski, E. 2 ; Martyn, H.-U. 40 ; Maxfield, S. J. 22 ; Mehta, A. 22 ; Meyer, A. B. 6 ; Meyer, H. 23 ; Meyer, J. 6 ; Mikocki, S. 29 ; Milcewicz-Mika, I. 29 ; Moreau, F. 10 ; Morozov, A. 38 ; Morris, J. V. 20 ; Mudrinic, M. 11 ; Müller, K. 41 ; Naumann, Th. 33 ; Newman, P. R. 12 ; Niebuhr, C. 6 ; Nikitin, D. 38 ; Nowak, G. 29 ; Nowak, K. 6 ; Olsson, J. E. 6 ; Ozerov, D. 16 ; Pahl, P. 6 ; Palichik, V. 38 ; Panagoulias, I. 6 ; Pandurovic, M. 11 ; Papadopoulou, Th. 6 ; Pascaud, C. 8 ; Patel, G. D. 22 ; Perez, E. 28 ; Petrukhin, A. 6 ; Picuric, I. 3 ; Piec, S. 6 ; Pirumov, H. 35 ; Pitzl, D. 6 ; Plačakytė, R. 6 ; Pokorny, B. 19 ; Polifka, R. 19 ; Povh, B. 26 ; Radescu, V. 6 ; Raicevic, N. 3 ; Ravdandorj, T. 7 ; Reimer, P. 21 ; Rizvi, E. 39 ; Robmann, P. 41 ; Roosen, R. 18 ; Rostovtsev, A. 16 ; Rotaru, M. 1 ; Ruiz Tabasco, J. E. 17 ; Rusakov, S. 2 ; Šálek, D. 19 ; Sankey, D. P. C. 20 ; Sauter, M. 35 ; Sauvan, E. 24 ; Schmitt, S. 6 ; Schoeffel, L. 28 ; Schöning, A. 35 ; Schultz-Coulon, H.-C. 32 ; Sefkow, F. 6 ; Shtarkov, L. N. 2 ; Shushkevich, S. 6 ; Sloan, T. 31 ; Smiljanic, I. 11 ; Soloviev, Y. 2 ; Sopicki, P. 29 ; South, D. 6 ; Spaskov, V. 38 ; Specka, A. 10 ; Staykova, Z. 18 ; Steder, M. 6 ; Stella, B. 42 ; Stoicea, G. 1 ; Straumann, U. 41 ; Sykora, T. 43 ; Thompson, P. D. 12 ; Tran, T. H. 8 ; Traynor, D. 39 ; Truöl, P. 41 ; Tsakov, I. 44 ; Tseepeldorj, B. 7 ; Turnau, J. 29 ; Urban, K. 32 ; Valkárová, A. 19 ; Vallée, C. 24 ; Van Mechelen, P. 18 ; Vazdik, Y. 2 ; Wegener, D. 9 ; Wünsch, E. 6 ; Žáček, J. 19 ; Zálešák, J. 21 ; Zhang, Z. 8 ; Zhokin, A. 16 ; Zohrabyan, H. 4 ; Zomer, F. 8
1 National Institute for Physics and Nuclear Engineering (NIPNE), Bucharest, Romania (GRID:grid.443874.8) (ISNI:0000 0000 9463 5349)
2 Lebedev Physical Institute, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000 0001 0656 6476)
3 University of Montenegro, Faculty of Science, Podgorica, Montenegro (GRID:grid.12316.37) (ISNI:0000 0001 2182 0188)
4 Yerevan Physics Institute, Yerevan, Armenia (GRID:grid.48507.3e) (ISNI:0000 0004 0482 7128)
5 CNRS/IN2P3, LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, Paris, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
6 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453)
7 Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia (GRID:grid.450277.3)
8 CNRS/IN2P3, LAL, Université Paris-Sud, Orsay, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
9 TU Dortmund, Institut für Physik, Dortmund, Germany (GRID:grid.5675.1) (ISNI:0000 0001 0416 9637)
10 CNRS/IN2P3, LLR, Ecole Polytechnique, Palaiseau, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
11 University of Belgrade, Vinca Institute of Nuclear Sciences, Belgrade, Serbia (GRID:grid.7149.b) (ISNI:0000 0001 2166 9385)
12 University of Birmingham, School of Physics and Astronomy, Birmingham, UK (GRID:grid.6572.6) (ISNI:0000 0004 1936 7486)
13 Slovak Academy of Sciences, Institute of Experimental Physics, Košice, Slovak Republic (GRID:grid.419303.c) (ISNI:0000 0001 2180 9405)
14 Max-Planck-Institut für Kernphysik, Heidelberg, Germany (GRID:grid.419604.e) (ISNI:0000 0001 2288 6103); Yerevan Physics Institute, Yerevan, Armenia (GRID:grid.48507.3e) (ISNI:0000 0004 0482 7128)
15 Max-Planck-Institut für Physik, München, Germany (GRID:grid.435824.c) (ISNI:0000 0001 2375 0603)
16 Institute for Theoretical and Experimental Physics, Moscow, Russia (GRID:grid.21626.31) (ISNI:0000 0001 0125 8159)
17 CINVESTAV, Departamento de Fisica Aplicada, Mérida, México (GRID:grid.418275.d) (ISNI:0000 0001 2165 8782)
18 Inter-University Institute for High Energies ULB-VUB, Brussels, Belgium (GRID:grid.4989.c) (ISNI:0000 0001 2348 6355); Universiteit Antwerpen, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000 0001 0790 3681)
19 Charles University, Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:0000 0004 1937 116X)
20 Chilton, Rutherford Appleton Laboratory, Didcot, UK (GRID:grid.76978.37) (ISNI:0000 0001 2296 6998)
21 Academy of Sciences of the Czech Republic, Institute of Physics, Praha, Czech Republic (GRID:grid.418095.1) (ISNI:0000 0001 1015 3316)
22 University of Liverpool, Department of Physics, Liverpool, UK (GRID:grid.10025.36) (ISNI:0000 0004 1936 8470)
23 Universität Wuppertal, Fachbereich C, Wuppertal, Germany (GRID:grid.7787.f) (ISNI:0000 0001 2364 5811)
24 CNRS/IN2P3, CPPM, Aix-Marseille Univ, Marseille, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
25 Universität Hamburg, Institut für Experimentalphysik, Hamburg, Germany (GRID:grid.9026.d) (ISNI:0000 0001 2287 2617)
26 Max-Planck-Institut für Kernphysik, Heidelberg, Germany (GRID:grid.419604.e) (ISNI:0000 0001 2288 6103)
27 Paul Scherrer Institut, Villigen, Switzerland (GRID:grid.5991.4) (ISNI:0000 0001 1090 7501)
28 CE-Saclay, CEA, DSM/Irfu, Gif-sur-Yvette, France (GRID:grid.457334.2)
29 Institute for Nuclear Physics, Cracow, Poland (GRID:grid.418860.3) (ISNI:0000 0001 0942 8941)
30 ETH, Institut für Teilchenphysik, Zürich, Switzerland (GRID:grid.5801.c) (ISNI:0000 0001 2156 2780)
31 University of Lancaster, Department of Physics, Lancaster, UK (GRID:grid.9835.7) (ISNI:0000 0000 8190 6402)
32 Universität Heidelberg, Kirchhoff-Institut für Physik, Heidelberg, Germany (GRID:grid.7700.0) (ISNI:0000 0001 2190 4373)
33 DESY, Zeuthen, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453)
34 CINVESTAV IPN, Departamento de Fisica, México City, México (GRID:grid.418275.d) (ISNI:0000 0001 2165 8782)
35 Universität Heidelberg, Physikalisches Institut, Heidelberg, Germany (GRID:grid.7700.0) (ISNI:0000 0001 2190 4373)
36 University of Lund, Physics Department, Lund, Sweden (GRID:grid.4514.4) (ISNI:0000 0001 0930 2361)
37 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453); Inter-University Institute for High Energies ULB-VUB, Brussels, Belgium (GRID:grid.4989.c) (ISNI:0000 0001 2348 6355); Universiteit Antwerpen, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000 0001 0790 3681)
38 Joint Institute for Nuclear Research, Dubna, Russia (GRID:grid.33762.33) (ISNI:0000 0004 0620 4119)
39 University of London, School of Physics and Astronomy, Queen Mary, London, UK (GRID:grid.4464.2) (ISNI:0000 0001 2161 2573)
40 I. Physikalisches Institut der RWTH, Aachen, Germany (GRID:grid.1957.a) (ISNI:0000 0001 0728 696X)
41 Physik-Institut der Universität Zürich, Zürich, Switzerland (GRID:grid.7400.3) (ISNI:0000 0004 1937 0650)
42 Università di Roma Tre and INFN Roma 3, Dipartimento di Fisica, Roma, Italy (GRID:grid.8509.4) (ISNI:0000 0001 2162 2106)
43 Charles University, Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:0000 0004 1937 116X); Inter-University Institute for High Energies ULB-VUB, Brussels, Belgium (GRID:grid.4989.c) (ISNI:0000 0001 2348 6355); Universiteit Antwerpen, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000 0001 0790 3681)
44 Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria (GRID:grid.425050.6) (ISNI:0000 0004 0519 4756)
1 National Institute for Physics and Nuclear Engineering (NIPNE), Bucharest, Romania (GRID:grid.443874.8) (ISNI:0000 0000 9463 5349)
2 Lebedev Physical Institute, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000 0001 0656 6476)
3 University of Montenegro, Faculty of Science, Podgorica, Montenegro (GRID:grid.12316.37) (ISNI:0000 0001 2182 0188)
4 Yerevan Physics Institute, Yerevan, Armenia (GRID:grid.48507.3e) (ISNI:0000 0004 0482 7128)
5 CNRS/IN2P3, LPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, Paris, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
6 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453)
7 Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia (GRID:grid.450277.3)
8 CNRS/IN2P3, LAL, Université Paris-Sud, Orsay, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
9 TU Dortmund, Institut für Physik, Dortmund, Germany (GRID:grid.5675.1) (ISNI:0000 0001 0416 9637)
10 CNRS/IN2P3, LLR, Ecole Polytechnique, Palaiseau, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
11 University of Belgrade, Vinca Institute of Nuclear Sciences, Belgrade, Serbia (GRID:grid.7149.b) (ISNI:0000 0001 2166 9385)
12 University of Birmingham, School of Physics and Astronomy, Birmingham, UK (GRID:grid.6572.6) (ISNI:0000 0004 1936 7486)
13 Slovak Academy of Sciences, Institute of Experimental Physics, Košice, Slovak Republic (GRID:grid.419303.c) (ISNI:0000 0001 2180 9405)
14 Max-Planck-Institut für Kernphysik, Heidelberg, Germany (GRID:grid.419604.e) (ISNI:0000 0001 2288 6103); Yerevan Physics Institute, Yerevan, Armenia (GRID:grid.48507.3e) (ISNI:0000 0004 0482 7128)
15 Max-Planck-Institut für Physik, München, Germany (GRID:grid.435824.c) (ISNI:0000 0001 2375 0603)
16 Institute for Theoretical and Experimental Physics, Moscow, Russia (GRID:grid.21626.31) (ISNI:0000 0001 0125 8159)
17 CINVESTAV, Departamento de Fisica Aplicada, Mérida, México (GRID:grid.418275.d) (ISNI:0000 0001 2165 8782)
18 Inter-University Institute for High Energies ULB-VUB, Brussels, Belgium (GRID:grid.4989.c) (ISNI:0000 0001 2348 6355); Universiteit Antwerpen, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000 0001 0790 3681)
19 Charles University, Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:0000 0004 1937 116X)
20 Chilton, Rutherford Appleton Laboratory, Didcot, UK (GRID:grid.76978.37) (ISNI:0000 0001 2296 6998)
21 Academy of Sciences of the Czech Republic, Institute of Physics, Praha, Czech Republic (GRID:grid.418095.1) (ISNI:0000 0001 1015 3316)
22 University of Liverpool, Department of Physics, Liverpool, UK (GRID:grid.10025.36) (ISNI:0000 0004 1936 8470)
23 Universität Wuppertal, Fachbereich C, Wuppertal, Germany (GRID:grid.7787.f) (ISNI:0000 0001 2364 5811)
24 CNRS/IN2P3, CPPM, Aix-Marseille Univ, Marseille, France (GRID:grid.433124.3) (ISNI:0000 0001 0664 3574)
25 Universität Hamburg, Institut für Experimentalphysik, Hamburg, Germany (GRID:grid.9026.d) (ISNI:0000 0001 2287 2617)
26 Max-Planck-Institut für Kernphysik, Heidelberg, Germany (GRID:grid.419604.e) (ISNI:0000 0001 2288 6103)
27 Paul Scherrer Institut, Villigen, Switzerland (GRID:grid.5991.4) (ISNI:0000 0001 1090 7501)
28 CE-Saclay, CEA, DSM/Irfu, Gif-sur-Yvette, France (GRID:grid.457334.2)
29 Institute for Nuclear Physics, Cracow, Poland (GRID:grid.418860.3) (ISNI:0000 0001 0942 8941)
30 ETH, Institut für Teilchenphysik, Zürich, Switzerland (GRID:grid.5801.c) (ISNI:0000 0001 2156 2780)
31 University of Lancaster, Department of Physics, Lancaster, UK (GRID:grid.9835.7) (ISNI:0000 0000 8190 6402)
32 Universität Heidelberg, Kirchhoff-Institut für Physik, Heidelberg, Germany (GRID:grid.7700.0) (ISNI:0000 0001 2190 4373)
33 DESY, Zeuthen, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453)
34 CINVESTAV IPN, Departamento de Fisica, México City, México (GRID:grid.418275.d) (ISNI:0000 0001 2165 8782)
35 Universität Heidelberg, Physikalisches Institut, Heidelberg, Germany (GRID:grid.7700.0) (ISNI:0000 0001 2190 4373)
36 University of Lund, Physics Department, Lund, Sweden (GRID:grid.4514.4) (ISNI:0000 0001 0930 2361)
37 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453); Inter-University Institute for High Energies ULB-VUB, Brussels, Belgium (GRID:grid.4989.c) (ISNI:0000 0001 2348 6355); Universiteit Antwerpen, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000 0001 0790 3681)
38 Joint Institute for Nuclear Research, Dubna, Russia (GRID:grid.33762.33) (ISNI:0000 0004 0620 4119)
39 University of London, School of Physics and Astronomy, Queen Mary, London, UK (GRID:grid.4464.2) (ISNI:0000 0001 2161 2573)
40 I. Physikalisches Institut der RWTH, Aachen, Germany (GRID:grid.1957.a) (ISNI:0000 0001 0728 696X)
41 Physik-Institut der Universität Zürich, Zürich, Switzerland (GRID:grid.7400.3) (ISNI:0000 0004 1937 0650)
42 Università di Roma Tre and INFN Roma 3, Dipartimento di Fisica, Roma, Italy (GRID:grid.8509.4) (ISNI:0000 0001 2162 2106)
43 Charles University, Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:0000 0004 1937 116X); Inter-University Institute for High Energies ULB-VUB, Brussels, Belgium (GRID:grid.4989.c) (ISNI:0000 0001 2348 6355); Universiteit Antwerpen, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000 0001 0790 3681)
44 Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria (GRID:grid.425050.6) (ISNI:0000 0004 0519 4756)
Pages
1995
Publication year
2012
Publication date
May 2012
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2294161551
Copyright
© The Author(s) 2012. This work is published under http://creativecommons.org/licenses/by/2.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.