Measurement of D mesons production in deep inelastic scattering at HERA

被引：42
|
作者：
Chekanov, S. [1 ]
Derrick, M.
Magill, S.
Musgrave, B.
Nicholass, D.
Repond, J.
Yoshida, R.
Mattingly, M. C. K.
Jechow, M.
Pavel, N.
Molina, A. G. Yagües
Antonelli, S.
Antonioli, P.
Bari, G.
Basile, M.
Bellagamba, L.
Bindi, M.
Boscherini, D.
Bruni, A.
Bruni, G.
Cifarelli, L.
Cindolo, F.
Contin, A.
Corradi, M.
De Pasquale, S.
Iacobucci, G.
Margotti, A.
Nania, R.
Polini, A.
Sartorelli, G.
Zichichi, A.
Bartsch, D.
Brock, I.
Goers, S.
Hartmann, H.
Hilger, E.
Jakob, H. -P.
Juengst, M.
Kind, O. M.
Nuncio-Quiroz, A. E.
Paul, E.
Renner, R.
Samson, U.
Schoenberg, V.
Shehzadi, R.
Wlasenko, M.
Barreiro, F.
Glasman, C.
Jimenez, M.
Labarga, L.
机构：
[1] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
[2] Andrews Univ, Berrien Springs, MI 49104 USA
[3] Humboldt Univ, Inst Phys, Berlin, Germany
[4] Univ Bologna, I-40126 Bologna, Italy
[5] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[6] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain
[7] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
[8] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan
[9] Moscow Engn Phys Inst, Moscow, Russia
[10] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia
[11] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[12] NIKHEF, Amsterdam, Netherlands
[13] Univ Amsterdam, NL-1012 WX Amsterdam, Netherlands
[14] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[15] Univ Oxford, Dept Phys, Oxford OX1 2JD, England
[16] Univ Padua, Dipartimento Fis, I-35100 Padua, Italy
[17] Ist Nazl Fis Nucl, Padua, Italy
[18] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[19] Polytech Univ, Sagamihara, Kanagawa, Japan
[20] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy
[21] Ist Nazl Fis Nucl, Rome, Italy
[22] Rutherford Appleton Lab, Didcot, Oxon, England
[23] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, Tel Aviv, Israel
[24] Tokyo Inst Technol, Dept Phys, Tokyo, Japan
[25] Univ Tokyo, Dept Phys, Tokyo, Japan
[26] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan
[27] Univ Turin, I-10124 Turin, Italy
[28] Ist Nazl Fis Nucl, Turin, Italy
[29] Univ Piemonte Orientale, Novara, Italy
[30] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[31] UCL, Dept Phys & Astron, London WC1E 6BT, England
[32] Univ Bonn, Inst Phys, Bonn, Germany
[33] Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England
[34] Univ Calabria, Dept Phys, Cosenza, Italy
[35] Ist Nazl Fis Nucl, Cosenza, Italy
[36] Chonnam Natl Univ, Dept Phys, Solid State Phys Lab, Kwangju, South Korea
[37] Univ Malaya, Kuala Lumpur 50603, Malaysia
[38] Columbia Univ, Nevis Labs, Hudson, NY 10027 USA
[39] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
[40] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland
[41] Jagiellonian Univ, Dept Phys, Krakow, Poland
[42] DESY, Hamburg, Germany
[43] DESY, Zeuthen, Germany
[44] Univ Florence, I-50121 Florence, Italy
[45] Ist Nazl Fis Nucl, Florence, Italy
[46] Univ Freiburg, Fak Phys, Freiburg, Germany
[47] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland
[48] Univ Aegean, Dept Engn Management & Finance, Athens, Greece
[49] Univ Hamburg, Inst Expt Phys, Hamburg, Germany
[50] Imperial Coll London, High Energy Nucl Phys Grp, London, England
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 07期
基金：
英国科学技术设施理事会;
关键词：
lepton-nucleon scattering;
D O I：
10.1088/1126-6708/2007/07/074
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Charm production in deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82pb(-1). Charm has been tagged by reconstructing D*(+), D-0, D+ and D-s(+) (+c.c.) charm mesons. The charm hadrons were measured in the kinematic range p(T)(D*(+), D-0, D+) > 3GeV, p(T)(D-s(+)) > 2GeV and vertical bar eta(D)vertical bar < 1.6 for 1.5 < Q(2) < 1000GeV(2) and 0.02 < y < 0.7. The production cross sections were used to extract charm fragmentation ratios and the fraction of c quarks hadronising in to a particular charm meson in the kinematic range considered. The cross sections were compared to the predictions of next-to-leading-order QCD, and extrapolated to the full kinematic region in p(T)(D) and eta(D) in order to determine the open-charm contribution, F-2(c (c) over bar) ( x,Q(2)), to the proton structure function F-2.
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页数：38
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