Measurement of D*± meson production in jets from pp collisions at √s=7 TeV with the ATLAS detector

被引：27

作者：

Aad, G. ^{[70
]}

Abbott, B. ^{[148
]}

Abdallah, J. ^{[16
,17
,18
]}

Abdelalim, A. A. ^{[71
]}

Abdesselam, A. ^{[156
]}

Abdinov, O. ^{[15
]}

Abi, B. ^{[149
]}

Abolins, M. ^{[122
]}

Abramowicz, H. ^{[206
]}

Abreu, H. ^{[152
,153
]}

Acerbi, E. ^{[123
,124
]}

Acharya, B. S. ^{[218
,219
]}

Adams, D. L. ^{[38
]}

Addy, T. N. ^{[82
]}

Adelman, J. ^{[235
]}

Aderholz, M. ^{[134
]}

Adomeit, S. ^{[133
]}

Adragna, P. ^{[106
]}

Adye, T. ^{[171
]}

Aefsky, S. ^{[34
]}

Aguilar-Saavedra, J. A. ^{[164
,165
,166
]}

Aharrouche, M. ^{[114
]}

Ahlen, S. P. ^{[33
]}

Ahles, F. ^{[70
]}

Ahmad, A. ^{[201
]}

Ahsan, M. ^{[62
]}

Aielli, G. ^{[176
,177
]}

Akdogan, T. ^{[27
]}

Akesson, T. P. A. ^{[112
]}

Akimoto, G. ^{[208
,209
]}

Akimov, A. V. ^{[129
]}

Akiyama, A. ^{[95
]}

Alam, M. S. ^{[1
]}

Alam, M. A. ^{[107
]}

Albert, J. ^{[229
]}

Albrand, S. ^{[79
,80
,81
]}

Aleksa, M. ^{[44
]}

Aleksandrov, I. N. ^{[93
]}

Alessandria, F. ^{[123
]}

Alexa, C. ^{[39
]}

Alexander, G. ^{[206
]}

Alexandre, G. ^{[71
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[32
]}

Aliev, M. ^{[23
]}

Alimonti, G. ^{[123
]}

Alison, J. ^{[159
]}

Aliyev, M. ^{[15
]}

Allport, P. P. ^{[103
]}

Allwood-Spiers, S. E. ^{[77
]}

机构：

[1] SUNY Albany, Albany, NY 12222 USA

[2] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[3] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[4] Dumlupinar Univ, Dept Phys, Kutahya, Turkey

[5] Gazi Univ, Dept Phys, Ankara, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] Turkish Atom Energy Commiss, Ankara, Turkey

[8] CNRS IN2P3, LAPP, Annecy Le Vieux, France

[9] Univ Savoie, Annecy Le Vieux, France

[10] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[11] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[12] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[13] Univ Athens, Dept Phys, Athens, Greece

[14] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[15] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[16] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[17] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[18] ICREA, Barcelona, Spain

[19] Univ Belgrade, Inst Phys, Belgrade, Serbia

[20] Vinca Inst Nucl Sci, Belgrade, Serbia

[21] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[22] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[23] Humboldt Univ, Dept Phys, Berlin, Germany

[24] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[25] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[26] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[27] Bogazici Univ, Dept Phys, Istanbul, Turkey

[28] Dogus Univ, Div Phys, Istanbul, Turkey

[29] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[30] INFN Sez Bologna, Bologna, Italy

[31] Univ Bologna, Dipartmento Fis, Bologna, Italy

[32] Univ Bonn, Inst Phys, Bonn, Germany

[33] Boston Univ, Dept Phys, Boston, MA 02215 USA

[34] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[35] Univ Fed Rio De Janeiro COPPE EE IF, Rio De Janeiro, Brazil

[36] Fed Univ Juiz de Fora UFJF, Juiz De Fora, Brazil

[37] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[38] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[39] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[40] Univ Politehn Bucuresti, Bucharest, Romania

[41] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[42] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[43] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[44] CERN, Geneva, Switzerland

[45] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[46] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[47] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[48] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[49] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

[50] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 05期

基金：

加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会;

关键词：

PARTON DISTRIBUTIONS;

D O I：

10.1103/PhysRevD.85.052005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper reports a measurement of D*(+/-) meson production in jets from proton- proton collisions at a center- of- mass energy of root s = 7 TeV at the CERN Large Hadron Collider. The measurement is based on a data sample recorded with the ATLAS detector with an integrated luminosity of 0.30 pb(-1) for jets with transverse momentum between 25 and 70 GeV in the pseudorapidity range vertical bar eta vertical bar <2.5. D*(+/-) mesons found in jets are fully reconstructed in the decay chain: D*(+/-)-> D-0 pi(+), D-0 -> K-pi(+), and its charge conjugate. The production rate is found to be N(D*(+/-))/N(jet) = 0.025 +/- 0.001(stat.) +/- 0.004(syst.) for D*(+/-) mesons that carry a fraction z of the jet momentum in the range 0.3< z< 1. Monte Carlo predictions fail to describe the data at small values of z, and this is most marked at low jet transverse momentum.

引用

页数：22

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