Measurement of J/ψ production cross-sections in pp collisions at √s=5 TeV

被引：0

作者：

Aaij, R. ^{[33
]}

Abdelmotteleb, A. S. W. ^{[57
]}

Beteta, C. Abellan ^{[51
]}

Ackernley, T. ^{[61
]}

Adeva, B. ^{[47
]}

Adinolfi, M. ^{[55
]}

Afsharnia, H. ^{[9
]}

Agapopoulou, C. ^{[13
]}

Aidala, C. A. ^{[88
]}

Aiola, S. ^{[25
]}

Ajaltouni, Z. ^{[9
]}

Akar, S. ^{[66
]}

Albrecht, J. ^{[15
]}

Alessio, F. ^{[49
]}

Alexander, M. ^{[60
]}

Alfonso Albero, A. ^{[46
]}

Aliouche, Z. ^{[63
]}

Alkhazov, G. ^{[39
]}

Cartelle, P. Alvarez ^{[56
]}

Amato, S. ^{[2
]}

Amey, J. L. ^{[55
]}

Amhis, Y. ^{[11
]}

An, L. ^{[49
]}

Anderlini, L. ^{[22
]}

Andreianov, A. ^{[39
]}

Andreotti, M. ^{[21
]}

Archilli, F. ^{[17
]}

Artamonov, A. ^{[45
]}

Artuso, M. ^{[69
]}

Arzymatov, K. ^{[43
]}

Aslanides, E. ^{[10
]}

Atzeni, M. ^{[51
]}

Audurier, B. ^{[12
]}

Bachmann, S. ^{[17
]}

Bachmayer, M. ^{[50
]}

Back, J. J. ^{[57
]}

Baladron Rodriguez, P. ^{[47
]}

Balagura, V ^{[12
]}

Baldini, W. ^{[21
]}

Leite, J. Baptista ^{[1
]}

Barbetti, M. ^{[22
]}

Barlow, R. J. ^{[63
]}

Barsuk, S. ^{[11
]}

Barter, W. ^{[62
]}

Bartolini, M. ^{[24
,96
]}

Baryshnikov, F. ^{[84
]}

Basels, J. M. ^{[14
]}

Bashir, S. ^{[35
]}

Bassi, G. ^{[30
]}

Batsukh, B. ^{[69
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil

[3] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China

[4] Inst High Energy Phys IHEP, Beijing 100039, Peoples R China

[5] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100091, Peoples R China

[6] Univ Chinese Acad Sci, Beijing, Peoples R China

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

[8] Univ Savoie Mt Blanc, CNRS, IN2P3 LAPP, Annecy, France

[9] Univ Clermont Auvergne, LPC, CNRS IN2P3, Clermont Ferrand, France

[10] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France

[11] Univ Paris Saclay, IJCLab, CNRS IN2P3, Orsay, France

[12] Ecole Polytech, Lab Leprince Ringuet, CNRS IN2P3, Inst Polytech Paris, Palaiseau, France

[13] Sorbonne Univ, LPNHE, Paris Diderot Sorbonne Paris Cite, CNRS IN2P3, Paris, France

[14] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[15] Tech Univ Dortmund, Fak Phys, Dortmund, Germany

[16] Max Planck Inst Kernphys MPIK, Heidelberg, Germany

[17] Heidelberg Univ, Phys Inst, Heidelberg, Germany

[18] Univ Coll Dublin, Sch Phys, Dublin, Ireland

[19] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

[20] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[21] Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy

[22] Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy

[23] Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy

[24] Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy

[25] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy

[26] Ist Nazl Fis Nucl, Sez Milano Bicocca, Milan, Italy

[27] Ist Nazl Fis Nucl, Sez Cagliari, Monserrato, Italy

[28] Univ Padua, Padua, Italy

[29] Ist Nazl Fis Nucl, Padua, Italy

[30] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[31] Ist Nazl Fis Nucl, Sez Roma La Sapienza, Rome, Italy

[32] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy

[33] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands

[34] Vrije Univ Amsterdam, Amsterdam, Netherlands

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

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

[37] Natl Ctr Nucl Res NCBJ, Warsaw, Poland

[38] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[39] NRC Kurchatov Inst PNPI NRC KI, Petersburg Nucl Phys Inst, Gatchina, Russia

[40] Russian Acad Sci INR RAS, Inst Nucl Res, Moscow, Russia

[41] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia

[42] NRC Kurchatov Inst ITEP NRC KI, Inst Theoret & Expt Phys, Moscow, Russia

[43] Yandex Sch Data Anal, Moscow, Russia

[44] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia

[45] NRC Kurchatov Inst IHEP NRC KI, Inst High Energy Phys, Protvino, Russia

[46] Univ Barcelona, ICCUB, Barcelona, Spain

[47] Univ Santiago de Compostela, Inst Galego Fis Altas Enerxias IGFAE, Santiago De Compostela, Spain

[48] Ctr Mixto Univ Valencia CSIC, Inst Fis Corpuscular, Valencia, Spain

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

[50] Ecole Polytech Fed Lausanne EPFL, Inst Phys, Lausanne, Switzerland

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 11期

关键词：

Hadron-Hadron scattering (experiments); Heavy quark production; QCD; Quarkonium; HADRONIC PRODUCTION; J-PSI;

D O I：

10.1007/JHEP11(2021)181

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 cross-sections of J/psi mesons in proton-proton collisions at a centre-of-mass energy of root s = 5TeV are measured using a data sample corresponding to an integrated luminosity of 9.13 +/- 0.18 pb(-1), collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, p(T), and rapidity, y, and separately for J/psi mesons produced promptly and from beauty hadron decays (nonprompt). With the assumption of unpolarised J/psi mesons, the production cross-sections integrated over the kinematic range 0 < p(T) < 20 GeV/c and 2.0 < y < 4.5 are sigma(prompt) J/psi = 8.154 +/- 0.010 +/- 0.283 mu b, sigma(nonprompt) J/psi = 0.820 +/- 0.003 +/- 0.034 mu b, where the first uncertainties are statistical and the second systematic. These cross-sections are compared with those at root s = 8TeV and 13TeV, and are used to update the measurement of the nuclear modification factor in proton-lead collisions for J/psi mesons at a centre-of-mass energy per nucleon pair of root s(NN) = 5TeV. The results are compared with theoretical predictions.

引用

页数：32

共 50 条

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