Measurement of D0, D+, D+* and Ds+ production in pp collisions at √s=5.02 TeV with ALICE

被引：76

作者：

Acharya, S. ^{[151
]}

Acosta, F. T.

Adamova, D. ^{[107
]}

Adhya, S. P.

Adler, A. ^{[87
]}

Adolfsson, J. ^{[48
]}

Aggarwal, M. M. ^{[112
]}

Rinella, G. Aglieri ^{[49
]}

Agnello, M. ^{[34
,43
]}

Agrawal, N. ^{[62
]}

Ahammed, Z. ^{[151
]}

Ahn, S. U. ^{[92
]}

Aiola, S. ^{[155
]}

Akindinov, A. ^{[78
]}

Al-Turany, M. ^{[119
,120
]}

Alam, S. N. ^{[151
]}

Albuquerque, D. S. D. ^{[136
]}

Aleksandrov, D. ^{[103
]}

Alessandro, B. ^{[72
]}

Adler, A. ^{[87
]}

Ali, Y. ^{[18
]}

Alici, A. ^{[12
,13
,35
,36
,67
]}

Alkin, A. ^{[2
]}

Alme, J. ^{[26
]}

Alt, T. ^{[83
]}

Altenkamper, L. ^{[26
]}

Altsybeev, I. ^{[150
]}

Alves Garcia Prado, C. ^{[135
]}

Andrei, C. ^{[100
]}

Andreou, D. ^{[31
,32
]}

Andrews, H. A. ^{[124
]}

Andronic, A. ^{[119
,120
]}

Anguelov, V. ^{[117
]}

Anson, C. ^{[110
]}

Anticic, T. ^{[121
]}

Antinori, F. ^{[70
]}

Antonioli, P. ^{[67
]}

Aphecetche, L. ^{[128
]}

Appelshaeuser, H. ^{[83
]}

Arcelli, S. ^{[35
,36
]}

Arnaldi, R. ^{[72
]}

Arnold, O. W. ^{[50
,118
]}

Arsene, I. C. ^{[25
]}

Arslandok, M. ^{[117
]}

Audurier, B. ^{[128
]}

Augustinus, A. ^{[49
]}

Averbeck, R. ^{[119
,120
]}

Azmi, M. D. ^{[21
]}

Badala, A. ^{[69
]}

Baek, Y. W. ^{[74
,91
]}

机构：

[1] Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia

[2] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[3] Bose Inst, Dept Phys, Kolkata, India

[4] CAPSS, Kolkata, India

[5] Budker Inst Nucl Phys, Novosibirsk, Russia

[6] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA

[7] Cent China Normal Univ, Wuhan, Hubei, Peoples R China

[8] IN2P3, Ctr Calcul, Lyon, France

[9] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba

[10] CINVESTAV, Ctr Invest & Estudios Avanzados, Mexico City, DF, Mexico

[11] CINVESTAV, Ctr Invest & Estudios Avanzados, Merida, Mexico

[12] Ctr Fermi Museo Stor Fis, Rome, Italy

[13] Ctr & Ric Enrico Fermi, Rome, Italy

[14] Chicago State Univ, Chicago, IL USA

[15] China Inst Atom Energy, Beijing, Peoples R China

[16] Chonbuk Natl Univ, Jeonju, South Korea

[17] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

[18] COMSATS Inst Informat Technol CIIT, Islamabad, Pakistan

[19] Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela, Spain

[20] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain

[21] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India

[22] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA

[23] Pusan Natl Univ, Dept Phys, Pusan, South Korea

[24] Sejong Univ, Dept Phys, Seoul, South Korea

[25] Univ Oslo, Dept Phys, Oslo, Norway

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

[27] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[28] Sezione Ist Nazl Fis Nucl, Rome, Italy

[29] Univ Cagliari, Dipartimento Fis, Cagliari, Italy

[30] Sezione Ist Nazl Fis Nucl, Cagliari, Italy

[31] Univ Trieste, Dipartimento Fis, Trieste, Italy

[32] Sezione Ist Nazl Fis Nucl, Trieste, Italy

[33] Univ Turin, Dipartimento Fis, Turin, Italy

[34] Sezione Ist Nazl Fis Nucl, Turin, Italy

[35] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[36] Sezione Ist Nazl Fis Nucl, Bologna, Italy

[37] Univ Catania, Dipartimento Fis & Astron, Catania, Italy

[38] Sezione Ist Nazl Fis Nucl, Catania, Italy

[39] Univ Padua, Dipartimento Fis & Astron, Padua, Italy

[40] Sezione Ist Nazl Fis Nucl, Padua, Italy

[41] Univ Salerno, Dipartimento Fis ER Caianiello, Salerno, Italy

[42] Grp Collegato INFN, Salerno, Italy

[43] Politecn Torino, Dipartimento DISAT, Turin, Italy

[44] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy

[45] INFN, Sez Torino, Alessandria, Italy

[46] Dipartimento Interateneo Fis M Merlin, Bari, Italy

[47] Sezione Ist Nazl Fis Nucl, Bari, Italy

[48] Lund Univ, Div Expt High Energy Phys, Lund, Sweden

[49] CERN, European Org Nucl Res, Geneva, Switzerland

[50] Tech Univ Munich, Excellence Cluster Universe, Munich, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 05期

基金：

新加坡国家研究基金会; 瑞典研究理事会; 美国能源部; 中国国家自然科学基金; 俄罗斯科学基金会; 美国国家科学基金会; 英国科学技术设施理事会; 日本学术振兴会; 俄罗斯基础研究基金会; 巴西圣保罗研究基金会;

关键词：

Charge conjugate - D+ mesons - Decay channels - Hadronic decays - Large Hadron Collider - Large-hadron colliders - Measurements of - Mid-rapidity - Production cross section - Proton proton collisions;

D O I：

10.1140/epjc/s10052-019-6873-6

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 measurements of the production of prompt D0, D+, D+, and Ds+ mesons in proton-proton (pp) collisions at TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity (|y|<0.5) via their hadronic decay channels D0K-+, D+K-++, D+D0+K-++, Ds+phi+K+K-+, and their charge conjugates. The production cross sections were measured in the transverse momentum interval 0<pT<36 for D0, 1<pT<36 for D+ and D+, and in 2<pT<24 for Ds+ mesons. Thanks to the higher integrated luminosity, an analysis in finer pT bins with respect to the previous measurements at sTeV was performed, allowing for a more detailed description of the cross-section pT shape. The measured pT-differential production cross sections are compared to the results at s=7TeV and to four different perturbative QCD calculations. Its rapidity dependence is also tested combining the ALICE and LHCb measurements in pp collisions at s=5.02 TeV. This measurement will allow for a more accurate determination of the nuclear modification factor in p-Pb and Pb-Pb collisions performed at the same nucleon-nucleon centre-of-mass energy.

引用

页数：25

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