Inclusive quarkonium production in pp collisions at √s=5.02 TeV

被引：0

作者：

Acharya, S. ^{[154
]}

Adamova, D. ^{[108
]}

Adler, A. ^{[86
]}

Adolfsson, J. ^{[93
]}

Rinella, G. Aglieri ^{[45
]}

Agnello, M. ^{[29
,39
]}

Agrawal, N. ^{[65
]}

Ahammed, Z. ^{[154
]}

Ahmad, S. ^{[18
]}

Ahn, S. U. ^{[88
]}

Ahuja, I ^{[49
]}

Akbar, Z. ^{[62
]}

Akindinov, A. ^{[105
]}

Al-Turany, M. ^{[120
,121
]}

Alam, S. N. ^{[18
]}

Aleksandrov, D. ^{[101
]}

Alessandro, B. ^{[71
]}

Alfanda, H. M. ^{[8
]}

Molina, R. Alfaro ^{[83
]}

Ali, B. ^{[18
]}

Ali, Y. ^{[16
]}

Alici, A. ^{[30
,31
]}

Alizadehvandchali, N. ^{[138
]}

Alkin, A. ^{[45
]}

Alme, J. ^{[23
]}

Alt, T. ^{[80
]}

Altsybeev, I ^{[126
]}

Anaam, M. N. ^{[8
]}

Andrei, C. ^{[59
]}

Andreou, D. ^{[103
]}

Andronic, A. ^{[157
]}

Angeletti, M. ^{[45
]}

Anguelov, V ^{[117
]}

Antinori, F. ^{[68
]}

Antonioli, P. ^{[65
]}

Anuj, C. ^{[18
]}

Apadula, N. ^{[92
]}

Aphecetche, L. ^{[128
]}

Appelshaeuser, H. ^{[80
]}

Arcelli, S. ^{[30
,31
]}

Arnaldi, R. ^{[71
]}

Arsene, I. C. ^{[22
]}

Arslandok, M. ^{[159
]}

Augustinus, A. ^{[45
]}

Averbeck, R. ^{[120
,121
]}

Aziz, S. ^{[90
]}

Azmi, M. D. ^{[18
]}

Badala, A. ^{[67
]}

Baek, Y. W. ^{[52
]}

Bai, X. ^{[120
,121
,142
]}

机构：

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

[2] AGH Univ Sci & Technol, Krakow, Poland

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

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

[5] Bose Inst, Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India

[6] Budker Inst Nucl Phys, Novosibirsk, Russia

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

[8] Cent China Normal Univ, Wuhan, Peoples R China

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

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

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

[12] Chicago State Univ, Chicago, IL USA

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

[14] Chungbuk Natl Univ, Cheongju, South Korea

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

[16] COMSATS Univ Islamabad, Islamabad, Pakistan

[17] Creighton Univ, Omaha, NE 68178 USA

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

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

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

[21] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[36] Univ Pavia, Dipartimento Fis & Nucl & Teor, Pavia, Italy

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

[38] Grp Coll INFN, Salerno, Italy

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

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

[41] Ist Nazl Fis Nucl, Sez Torino, Alessandria, Italy

[42] Univ Messina, Dipartimento Sci MIFT, Messina, Italy

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

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

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

[46] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[47] Western Norway Univ Appl Sci, Fac Engn & Sci, Bergen, Norway

[48] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic

[49] Safarik Univ, Fac Sci, Kosice, Slovakia

[50] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 01期

基金：

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

关键词：

RAPIDITY;

D O I：

10.1140/epjc/s10052-022-10896-8

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：

This article reports on the inclusive production cross section of several quarkonium states, J/psi, psi(2S), Upsilon(1S), Upsilon(2S), and Upsilon(3S), measured with the ALICE detector at the LHC, in pp collisions at root s = 5.02 TeV. The analysis is performed in the dimuon decay channel at forward rapidity (2.5 < y < 4). The integrated cross sections and transverse-momentum (p(T)) and rapidity (y) differential cross sections for J/psi, psi(2S), Upsilon(1S), and the psi(2S)-to-J/psi cross section ratios are presented. The integrated cross sections, assuming unpolarized quarkonia, are: sigma(J/psi) (p(T) < 20 GeV/c) = 5.88 +/- 0.03 +/- 0.34 mu b, sigma(psi(2S)) (p(T) < 12 GeV/c) = 0.87 +/- 0.06 +/- 0.10 mu b, sigma(Upsilon(1S)) (p(T) < 15 GeV/c) = 45.5 +/- 3.9 +/- 3.5 nb, sigma(Upsilon(2S)) (p(T) < 15 GeV/c) = 22.4 +/- 3.2 +/- 2.7 nb, and sigma(Upsilon(3S)) (p(T) < 15 GeV/c) = 4.9 +/- 2.2 +/- 1.0 nb, where the first (second) uncertainty is the statistical (systematic) one. For the first time, the cross sections of the three Upsilon states, as well as the psi(2S) one as a function of p(T) and y, are measured at root s = 5.02 TeV at forward rapidity. These measurements also significantly extend the J/psi p(T) reach and supersede previously published results. A comparison with ALICE measurements in pp collisions at root s = 2.76, 7, 8, and 13 TeV is presented and the energy dependence of quarkonium production cross sections is discussed. Finally, the results are compared with the predictions from several production models.

引用

页数：27

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