Inclusive D*± meson cross sections and D*±-jet correlations in photoproduction at HERA

A. Aktas; V. Andreev; T. Anthonis; B. Antunovic; S. Aplin; A. Asmone; A. Astvatsatourov; A. Babaev; S. Backovic; A. Baghdasaryan; P. Baranov; E. Barrelet; W. Bartel; S. Baudrand; S. Baumgartner; M. Beckingham; O. Behnke; O. Behrendt; A. Belousov; N. Berger; J.C. Bizot; M.-O. Boenig; V. Boudry; J. Bracinik; G. Brandt; V. Brisson; D. Bruncko; F.W. Büsser; A. Bunyatyan; G. Buschhorn; L. Bystritskaya; A.J. Campbell; S. Caron; F. Cassol-Brunner; K. Cerny; V. Cerny; V. Chekelian; J.G. Contreras; J.A. Coughlan; B.E. Cox; G. Cozzika; J. Cvach; J.B. Dainton; W.D. Dau; K. Daum; Y. de Boer; B. Delcourt; M. Del Degan; A. De Roeck; E.A. De Wolf; C. Diaconu; V. Dodonov; A. Dubak; G. Eckerlin; V. Efremenko; S. Egli; R. Eichler; F. Eisele; A. Eliseev; E. Elsen; S. Essenov; A. Falkewicz; P.J.W. Faulkner; L. Favart; A. Fedotov; R. Felst; J. Feltesse; J. Ferencei; L. Finke; M. Fleischer; G. Flucke; A. Fomenko; G. Franke; T. Frisson; E. Gabathuler; E. Garutti; J. Gayler; C. Gerlich; S. Ghazaryan; S. Ginzburgskaya; A. Glazov; I. Glushkov; L. Goerlich; M. Goettlich; N. Gogitidze; S. Gorbounov; C. Grab; T. Greenshaw; M. Gregori; B.R. Grell; G. Grindhammer; C. Gwilliam; S. Habib; D. Haidt; M. Hansson; G. Heinzelmann; R.C.W. Henderson; H. Henschel; G. Herrera; M. Hildebrandt; K.H. Hiller; D. Hoffmann; R. Horisberger; A. Hovhannisyan; T. Hreus; S. Hussain; M. Ibbotson; M. Ismail; M. Jacquet; X. Janssen; V. Jemanov; L. Jönsson; D.P. Johnson; A.W. Jung; H. Jung; M. Kapichine; J. Katzy; I.R. Kenyon; C. Kiesling; M. Klein; C. Kleinwort; T. Klimkovich; T. Kluge; G. Knies; A. Knutsson; V. Korbel; P. Kostka; K. Krastev; J. Kretzschmar; A. Kropivnitskaya; K. Krüger; M.P.J. Landon; W. Lange; G. Laštovička-Medin; P. Laycock; A. Lebedev; G. Leibenguth; V. Lendermann; S. Levonian; L. Lindfeld; K. Lipka; A. Liptaj; B. List; J. List; E. Lobodzinska; N. Loktionova; R. Lopez-Fernandez; V. Lubimov; A.-I. Lucaci-Timoce; H. Lueders; T. Lux; L. Lytkin; A. Makankine; N. Malden; E. Malinovski; P. Marage; R. Marshall; L. Marti; M. Martisikova; H.-U. Martyn; S.J. Maxfield; A. Mehta; K. Meier; A.B. Meyer; H. Meyer; J. Meyer; V. Michels; S. Mikocki; I. Milcewicz-Mika; D. Milstead; D. Mladenov; A. Mohamed; F. Moreau; A. Morozov; J.V. Morris; M.U. Mozer; K. Müller; P. Murín; K. Nankov; B. Naroska; T. Naumann; P.R. Newman; C. Niebuhr; A. Nikiforov; G. Nowak; K. Nowak; M. Nozicka; R. Oganezov; B. Olivier; J.E. Olsson; S. Osman; D. Ozerov; V. Palichik; I. Panagoulias; T. Papadopoulou; C. Pascaud; G.D. Patel; H. Peng; E. Perez; D. Perez-Astudillo; A. Perieanu; A. Petrukhin; D. Pitzl; R. Plačakytė; B. Portheault; B. Povh; P. Prideaux; A.J. Rahmat; N. Raicevic; P. Reimer; A. Rimmer; C. Risler; E. Rizvi; P. Robmann; B. Roland; R. Roosen; A. Rostovtsev; Z. Rurikova; S. Rusakov; F. Salvaire; D.P.C. Sankey; M. Sauter; E. Sauvan; S. Schmidt; S. Schmitt; C. Schmitz; L. Schoeffel; A. Schöning; H.-C. Schultz-Coulon; F. Sefkow; R.N. Shaw-West; I. Sheviakov; L.N. Shtarkov; T. Sloan; P. Smirnov; Y. Soloviev; D. South; V. Spaskov; A. Specka; M. Steder; B. Stella; J. Stiewe; A. Stoilov; U. Straumann; D. Sunar; V. Tchoulakov; G. Thompson; P.D. Thompson; T. Toll; F. Tomasz; D. Traynor; T.N. Trinh; P. Truöl; I. Tsakov; G. Tsipolitis; I. Tsurin; J. Turnau; E. Tzamariudaki; K. Urban; M. Urban; A. Usik; D. Utkin; A. Valkárová; C. Vallée; P. Van Mechelen; A. Vargas Trevino; Y. Vazdik; C. Veelken; S. Vinokurova; V. Volchinski; K. Wacker; G. Weber; R. Weber; D. Wegener; C. Werner; M. Wessels; B. Wessling; C. Wissing; R. Wolf; E. Wünsch; S. Xella; W. Yan; V. Yeganov; J. Žáček; J. Zálešák; Z. Zhang; A. Zhelezov; A. Zhokin; Y.C. Zhu; J. Zimmermann; T. Zimmermann; H. Zohrabyan; F. Zomer

doi:10.1140/epjc/s10052-007-0220-z

2022 Impact factor 4.4

Particles and Fields

Eur. Phys. J. C (2007) 50: 251-267
https://doi.org/10.1140/epjc/s10052-007-0220-z

Regular Article - Experimental Physics

Inclusive D^± meson cross sections and D^±-jet correlations in photoproduction at HERA

A. Aktas⁹, V. Andreev²⁵, T. Anthonis³, B. Antunovic²⁶, S. Aplin⁹, A. Asmone³³, A. Astvatsatourov³, A. Babaev²⁴, S. Backovic³⁰, A. Baghdasaryan³⁷, P. Baranov²⁵, E. Barrelet²⁹, W. Bartel⁹, S. Baudrand²⁷, S. Baumgartner³⁹, M. Beckingham⁹, O. Behnke¹²^*, O. Behrendt⁶, A. Belousov²⁵, N. Berger³⁹, J.C. Bizot²⁷, M.-O. Boenig⁶, V. Boudry²⁸, J. Bracinik²⁶, G. Brandt¹², V. Brisson²⁷, D. Bruncko¹⁵, F.W. Büsser¹⁰, A. Bunyatyan¹¹^,37, G. Buschhorn²⁶, L. Bystritskaya²⁴, A.J. Campbell⁹, S. Caron¹^,48, F. Cassol-Brunner²¹, K. Cerny³², V. Cerny¹⁵^,46, V. Chekelian²⁶, J.G. Contreras²², J.A. Coughlan⁴, B.E. Cox²⁰, G. Cozzika⁸, J. Cvach³¹, J.B. Dainton¹⁷, W.D. Dau¹⁴, K. Daum³⁶^,42, Y. de Boer²⁴, B. Delcourt²⁷, M. Del Degan³⁹, A. De Roeck⁹^,44, E.A. De Wolf³, C. Diaconu²¹, V. Dodonov¹¹, A. Dubak³⁰^,45, G. Eckerlin⁹, V. Efremenko²⁴, S. Egli³⁵, R. Eichler³⁵, F. Eisele¹², A. Eliseev²⁵, E. Elsen⁹, S. Essenov²⁴, A. Falkewicz⁵, P.J.W. Faulkner², L. Favart³, A. Fedotov²⁴, R. Felst⁹, J. Feltesse⁸^,47, J. Ferencei¹⁵, L. Finke¹⁰, M. Fleischer⁹, G. Flucke¹⁰, A. Fomenko²⁵, G. Franke⁹, T. Frisson²⁸, E. Gabathuler¹⁷, E. Garutti⁹, J. Gayler⁹, C. Gerlich¹², S. Ghazaryan³⁷, S. Ginzburgskaya²⁴, A. Glazov⁹, I. Glushkov³⁸, L. Goerlich⁵, M. Goettlich⁹, N. Gogitidze²⁵, S. Gorbounov³⁸, C. Grab³⁹, T. Greenshaw¹⁷, M. Gregori¹⁸, B.R. Grell⁹, G. Grindhammer²⁶, C. Gwilliam²⁰, S. Habib¹⁰, D. Haidt⁹, M. Hansson¹⁹, G. Heinzelmann¹⁰, R.C.W. Henderson¹⁶, H. Henschel³⁸, G. Herrera²³, M. Hildebrandt³⁵, K.H. Hiller³⁸, D. Hoffmann²¹, R. Horisberger³⁵, A. Hovhannisyan³⁷, T. Hreus³^,43, S. Hussain¹⁸, M. Ibbotson²⁰, M. Ismail²⁰, M. Jacquet²⁷, X. Janssen³, V. Jemanov¹⁰, L. Jönsson¹⁹, D.P. Johnson³, A.W. Jung¹³, H. Jung¹⁹^,9, M. Kapichine⁷, J. Katzy⁹, I.R. Kenyon², C. Kiesling²⁶, M. Klein³⁸, C. Kleinwort⁹, T. Klimkovich⁹, T. Kluge⁹, G. Knies⁹, A. Knutsson¹⁹, V. Korbel⁹, P. Kostka³⁸, K. Krastev⁹, J. Kretzschmar³⁸, A. Kropivnitskaya²⁴, K. Krüger¹³, M.P.J. Landon¹⁸, W. Lange³⁸, G. Laštovička-Medin³⁰, P. Laycock¹⁷, A. Lebedev²⁵, G. Leibenguth³⁹, V. Lendermann¹³, S. Levonian⁹, L. Lindfeld⁴⁰, K. Lipka³⁸, A. Liptaj²⁶, B. List¹⁰, J. List¹⁰, E. Lobodzinska³⁸^,5, N. Loktionova²⁵, R. Lopez-Fernandez²³, V. Lubimov²⁴, A.-I. Lucaci-Timoce⁹, H. Lueders¹⁰, T. Lux¹⁰, L. Lytkin¹¹, A. Makankine⁷, N. Malden²⁰, E. Malinovski²⁵, P. Marage³, R. Marshall²⁰, L. Marti⁹, M. Martisikova⁹, H.-U. Martyn¹, S.J. Maxfield¹⁷, A. Mehta¹⁷, K. Meier¹³, A.B. Meyer⁹, H. Meyer³⁶, J. Meyer⁹, V. Michels⁹, S. Mikocki⁵, I. Milcewicz-Mika⁵, D. Milstead¹⁷, D. Mladenov³⁴, A. Mohamed¹⁷, F. Moreau²⁸, A. Morozov⁷, J.V. Morris⁴, M.U. Mozer¹², K. Müller⁴⁰, P. Murín¹⁵^,43, K. Nankov³⁴, B. Naroska¹⁰, T. Naumann³⁸, P.R. Newman², C. Niebuhr⁹, A. Nikiforov²⁶, G. Nowak⁵, K. Nowak⁴⁰, M. Nozicka³², R. Oganezov³⁷, B. Olivier²⁶, J.E. Olsson⁹, S. Osman¹⁹, D. Ozerov²⁴, V. Palichik⁷, I. Panagoulias⁹^,41, T. Papadopoulou⁹^,41, C. Pascaud²⁷, G.D. Patel¹⁷, H. Peng⁹, E. Perez⁸, D. Perez-Astudillo²², A. Perieanu⁹, A. Petrukhin²⁴, D. Pitzl⁹, R. Plačakytė²⁶, B. Portheault²⁷, B. Povh¹¹, P. Prideaux¹⁷, A.J. Rahmat¹⁷, N. Raicevic³⁰, P. Reimer³¹, A. Rimmer¹⁷, C. Risler⁹, E. Rizvi¹⁸, P. Robmann⁴⁰, B. Roland³, R. Roosen³, A. Rostovtsev²⁴, Z. Rurikova²⁶, S. Rusakov²⁵, F. Salvaire¹⁰, D.P.C. Sankey⁴, M. Sauter³⁹, E. Sauvan²¹, S. Schmidt⁹, S. Schmitt⁹, C. Schmitz⁴⁰, L. Schoeffel⁸, A. Schöning³⁹, H.-C. Schultz-Coulon¹³, F. Sefkow⁹, R.N. Shaw-West², I. Sheviakov²⁵, L.N. Shtarkov²⁵, T. Sloan¹⁶, P. Smirnov²⁵, Y. Soloviev²⁵, D. South⁹, V. Spaskov⁷, A. Specka²⁸, M. Steder⁹, B. Stella³³, J. Stiewe¹³, A. Stoilov³⁴, U. Straumann⁴⁰, D. Sunar³, V. Tchoulakov⁷, G. Thompson¹⁸, P.D. Thompson², T. Toll⁹, F. Tomasz¹⁵, D. Traynor¹⁸, T.N. Trinh²¹, P. Truöl⁴⁰, I. Tsakov³⁴, G. Tsipolitis⁹^,41, I. Tsurin⁹, J. Turnau⁵, E. Tzamariudaki²⁶, K. Urban¹³, M. Urban⁴⁰, A. Usik²⁵, D. Utkin²⁴, A. Valkárová³², C. Vallée²¹, P. Van Mechelen³, A. Vargas Trevino⁶, Y. Vazdik²⁵, C. Veelken¹⁷, S. Vinokurova⁹, V. Volchinski³⁷, K. Wacker⁶, G. Weber¹⁰, R. Weber³⁹, D. Wegener⁶, C. Werner¹², M. Wessels⁹, B. Wessling⁹, C. Wissing⁶, R. Wolf¹², E. Wünsch⁹, S. Xella⁴⁰, W. Yan⁹, V. Yeganov³⁷, J. Žáček³², J. Zálešák³¹, Z. Zhang²⁷, A. Zhelezov²⁴, A. Zhokin²⁴, Y.C. Zhu⁹, J. Zimmermann²⁶, T. Zimmermann³⁹, H. Zohrabyan³⁷, F. Zomer²⁷ and The H1 Collaboration

¹ I. Physikalisches Institut der RWTH, Aachen, Germany
² School of Physics and Astronomy, University of Birmingham, Birmingham, UK
³ Inter-University Institute for High Energies ULB-VUB, Brussels, Universiteit Antwerpen, Antwerpen, Belgium
⁴ Rutherford Appleton Laboratory, Chilton, Didcot, UK
⁵ Institute for Nuclear Physics, Cracow, Poland
⁶ Institut für Physik, Universität Dortmund, Dortmund, Germany
⁷ Joint Institute for Nuclear Research, Dubna, Russia
⁸ CEA, DSM/DAPNIA, CE-Saclay, Gif-sur-Yvette, France
⁹ DESY, Hamburg, Germany
¹⁰ Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany
¹¹ Max-Planck-Institut für Kernphysik, Heidelberg, Germany
¹² Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany
¹³ Kirchhoff-Institut für Physik, Universität Heidelberg, Heidelberg, Germany
¹⁴ Institut für Experimentelle und Angewandte Physik, Universität Kiel, Kiel, Germany
¹⁵ Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovak Republic
¹⁶ Department of Physics, University of Lancaster, Lancaster, UK
¹⁷ Department of Physics, University of Liverpool, Liverpool, UK
¹⁸ Queen Mary and Westfield College, London, UK
¹⁹ Physics Department, University of Lund, Lund, Sweden
²⁰ Physics Department, University of Manchester, Manchester, UK
²¹ CPPM, CNRS/IN2P3 - Univ. Mediterranee, Marseille, France
²² Departamento de Fisica Aplicada, CINVESTAV, Merida, Yucatán, Mexico
²³ Departamento de Fisica, CINVESTAV, Merida, Mexico
²⁴ Institute for Theoretical and Experimental Physics, Moscow, Russia
²⁵ Lebedev Physical Institute, Moscow, Russia
²⁶ Max-Planck-Institut für Physik, München, Germany
²⁷ LAL, Université de Paris-Sud 11, IN2P3-CNRS, Orsay, France
²⁸ LLR, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France
²⁹ LPNHE, Universités Paris VI and VII, IN2P3-CNRS, Paris, France
³⁰ Faculty of Science, University of Montenegro, Podgorica, Serbia and Montenegro
³¹ Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic
³² Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic
³³ Dipartimento di Fisica Università di Roma Tre and INFN Roma 3, Roma, Italy
³⁴ Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
³⁵ Paul Scherrer Institut, Villigen, Switzerland
³⁶ Fachbereich C, Universität Wuppertal, Wuppertal, Germany
³⁷ Yerevan Physics Institute, Yerevan, Armenia
³⁸ DESY, Zeuthen, Germany
³⁹ Institut für Teilchenphysik, ETH, Zürich, Switzerland
⁴⁰ Physik-Institut der Universität Zürich, Zürich, Switzerland
⁴¹ Physics Department, National Technical University, Zografou Campus, 15773, Athens, Greece
⁴² Rechenzentrum, Universität Wuppertal, Wuppertal, Germany
⁴³ University of P.J. Safárik, Kosice, Slovak Republic
⁴⁴ CERN, Geneva, Switzerland
⁴⁵ Max-Planck-Institut für Physik, München, Germany
⁴⁶ Comenius University, Bratislava, Slovak Republic
⁴⁷ Helmholtz Humboldt Research Award, DESY and University Hamburg, Hamburg, Germany
⁴⁸ Physikalisches Institut, Universität Freiburg, Freiburg i. Br., Germany

^* e-mail: obehnke@mail.desy.de

Received: 17 August 2006
Revised: 19 November 2006
Published online: 20 February 2007

Abstract

Differential photoproduction cross sections are measured for events containing D^*± mesons. The data were taken with the H1 detector at the ep collider HERA and correspond to an integrated luminosity of 51.1 pb^-1. The kinematic region covers small photon virtualities Q² < 0.01 GeV² and photon–proton centre-of-mass energies of 171 < W_γ p < 256 GeV. The details of the heavy quark production process are further investigated in events with one or two jets in addition to the D^*± meson. Differential cross sections for D^*+jet production are determined and the correlations between the D^*± meson and the jet(s) are studied. The results are compared with perturbative QCD predictions applying collinear- or k_t-factorisation.

© Springer-Verlag Berlin Heidelberg, 2007