Measurement of charm and beauty production in deep inelastic ep scattering from decays into muons at HERA

被引：45

作者：

Chekanov, S. ^{[1
]}

Derrick, M. ^{[1
]}

Magill, S. ^{[1
]}

Musgrave, B. ^{[1
]}

Nicholass, D. ^{[1
]}

Repond, J. ^{[1
]}

Yoshida, R. ^{[1
]}

Mattingly, M. C. K. ^{[2
]}

Antonioli, P. ^{[3
]}

Bari, G. ^{[3
]}

Bellagamba, L. ^{[3
]}

Boscherini, D. ^{[3
]}

Bruni, A. ^{[3
]}

Bruni, G. ^{[3
]}

Cindolo, F. ^{[3
]}

Corradi, M. ^{[3
]}

Iacobucci, G. ^{[3
]}

Margotti, A. ^{[3
]}

Nania, R. ^{[3
]}

Polini, A. ^{[3
]}

Antonelli, S. ^{[3
,4
]}

Basile, M. ^{[3
,4
]}

Bindi, M. ^{[3
,4
]}

Cifarelli, L. ^{[3
,4
]}

Contin, A. ^{[3
,4
]}

De Pasquale, S. ^{[3
,4
]}

Sartorelli, G. ^{[3
,4
]}

Zichichi, A. ^{[3
,4
]}

Bartsch, D. ^{[5
]}

Brock, I. ^{[5
]}

Hartmann, H. ^{[5
]}

Hilger, E. ^{[5
]}

Jakob, H. -P. ^{[5
]}

Juengst, M. ^{[5
]}

Nuncio-Quiroz, A. E. ^{[5
]}

Paul, E. ^{[5
]}

Samson, U. ^{[5
]}

Schoenberg, V. ^{[5
]}

Shehzadi, R. ^{[5
]}

Wlasenko, M. ^{[5
]}

Brook, N. H. ^{[6
]}

Heath, G. P. ^{[6
]}

Morris, J. D. ^{[6
]}

Kaur, M. ^{[7
]}

Kaur, P. ^{[7
,61
]}

Singh, I. ^{[7
,61
]}

Capua, M. ^{[8
,9
]}

Fazio, S. ^{[8
,9
]}

Mastroberardino, A. ^{[8
,9
]}

Schioppa, M. ^{[8
,9
]}

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

[2] Andrews Univ, Berrien Springs, MI 49104 USA

[3] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[4] Univ Bologna, Bologna, Italy

[5] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[6] Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England

[7] Panjab Univ, Dept Phys, Chandigarh 160014, India

[8] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy

[9] Univ Calabria, Ist Nazl Fis Nucl, I-87036 Cosenza, Italy

[10] Chonnam Natl Univ, Kwangju, South Korea

[11] Univ Malaya, Kuala Lumpur 50603, Malaysia

[12] Columbia Univ, Nevis Labs, Irvington, NY 10027 USA

[13] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[14] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland

[15] Jagiellonian Univ, Dept Phys, Krakow, Poland

[16] Deutsch Elektronen Synchrotron DESY, Hamburg, Germany

[17] Deutsch Elektronen Synchrotron DESY, Zeuthen, Germany

[18] Ist Nazl Fis Nucl, I-50125 Florence, Italy

[19] Univ Florence, Florence, Italy

[20] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[21] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland

[22] Univ Aegean, Dept Engn Management & Finance, Aegean, Greece

[23] Univ Hamburg, Inst Exp Phys, Hamburg, Germany

[24] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England

[25] High Energy Accelerator Res Org, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[26] Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan

[27] Natl Acad Sci, Inst Nucl Res, Kiev, Ukraine

[28] Kiev Natl Univ, Kiev, Ukraine

[29] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu, South Korea

[30] Catholic Univ Louvain, Inst Phys Nucl, B-3000 Louvain, Belgium

[31] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain

[32] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[33] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan

[34] Moscow Engn Phys Inst, Moscow 115409, Russia

[35] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia

[36] Max Planck Inst Phys & Astrophys, Munich, Germany

[37] NIKHEF & Univ Amsterdam, Amsterdam, Netherlands

[38] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[39] Univ Oxford, Dept Phys, Oxford, England

[40] Ist Nazl Fis Nucl, Padua, Italy

[41] Univ Padua, Dipartimento Fis, Padua, Italy

[42] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[43] Polytech Univ, Sagamihara, Kanagawa, Japan

[44] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[45] Ist Nazl Fis Nucl, Rome, Italy

[46] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[47] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, IL-69978 Tel Aviv, Israel

[48] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan

[49] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[50] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2010年 / 65卷 / 1-2期

关键词：

PHYSICS EVENT GENERATION; MONTE-CARLO GENERATOR; H1 VERTEX DETECTOR; ZEUS BARREL; CROSS-SECTIONS; D-ASTERISK; DESIGN; CONSTRUCTION; MESONS; FRAGMENTATION;

D O I：

10.1140/epjc/s10052-009-1193-x

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：

The production of charm and beauty quarks in ep interactions has been measured with the ZEUS detector at HERA for squared four-momentum exchange Q(2) > 20 GeV2, using an integrated luminosity of 126 pb(-1). Charm and beauty quarks were identified through their decays into muons. Differential cross sections were measured for muon transverse momenta p(T)(mu) > 1.5 GeV and pseudorapidities - 1.6 < eta(mu) < 2.3, as a function of p(T)(mu), eta(mu), Q(2) and Bjorken x. The charm and beauty contributions to the proton structure function F-2 were also extracted. The results agree with previous measurements based on independent techniques and are well described by QCD predictions.

引用

页码：65 / 79

页数：15

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