W±-boson production in p-Pb collisions at √sNN=8.16 TeV and Pb-Pb collisions at √sNN=5.02 TeV

被引：0

作者：

Acharya, S. ^{[138
,145
]}

Adamova, D. ^{[97
]}

Adler, A. ^{[80
]}

Rinella, G. Aglieri ^{[43
]}

Agnello, M. ^{[38
,39
]}

Agrawal, N. ^{[61
]}

Ahammed, Z. ^{[145
]}

Ahmad, S. ^{[17
]}

Ahn, S. U. ^{[81
]}

Ahuja, I. ^{[48
]}

Akindinov, A. ^{[153
]}

Al-Turany, M. ^{[111
,112
]}

Aleksandrov, D. ^{[153
]}

Alessandro, B. ^{[66
]}

Alfanda, H. M. ^{[7
]}

Alfaro Molina, R. ^{[77
]}

Ali, B. ^{[17
]}

Ali, Y. ^{[15
]}

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

Alizadehvandchali, N. ^{[127
]}

Alkin, A. ^{[43
]}

Alme, J. ^{[22
]}

Alocco, G. ^{[62
]}

Alt, T. ^{[74
]}

Altsybeev, I. ^{[153
]}

Anaam, M. N. ^{[7
]}

Andrei, C. ^{[56
]}

Andronic, A. ^{[148
]}

Anguelov, V. ^{[107
]}

Antinori, F. ^{[64
]}

Antonioli, P. ^{[61
]}

Anuj, C. ^{[17
]}

Apadula, N. ^{[85
]}

Aphecetche, L. ^{[117
]}

Appelshaeuser, H. ^{[74
]}

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

Arnaldi, R. ^{[66
]}

Arsene, I. C. ^{[21
]}

Arslandok, M. ^{[150
]}

Augustinus, A. ^{[43
]}

Averbeck, R. ^{[111
,112
]}

Aziz, S. ^{[83
]}

Azmi, M. D. ^{[17
]}

Badala, A. ^{[63
]}

Baek, Y. W. ^{[51
]}

Bai, X. ^{[111
,112
]}

Bailhache, R. ^{[74
]}

Bailung, Y. ^{[58
]}

Bala, R. ^{[102
]}

Balbino, A. ^{[38
,39
]}

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] CAPSS, Kolkata, India

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

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

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

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

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

[11] Chicago State Univ, Chicago, IL USA

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

[13] Chungbuk Natl Univ, Cheongju, South Korea

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

[15] COMSATS Univ Islamabad, Islamabad, Pakistan

[16] Creighton Univ, Omaha, NE 68178 USA

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

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

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

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

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

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

[23] Univ Pavia, Dipartimento Fis, Pavia, Italy

[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 Salerno, Dipartimento Fis ER Caianiello, Salerno, Italy

[37] Univ Salerno, Grp Collegato INFN, Salerno, Italy

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

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

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

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

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

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

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

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

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

[47] Sofia Univ, Fac Phys, Sofia, Bulgaria

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

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

[50] Fudan Univ, Shanghai, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 05期

基金：

新加坡国家研究基金会; 美国国家科学基金会; 欧盟地平线“2020”; 巴西圣保罗研究基金会; 英国科学技术设施理事会; 芬兰科学院; 日本学术振兴会; 瑞典研究理事会; 欧洲研究理事会; 中国国家自然科学基金; 美国能源部; 奥地利科学基金会;

关键词：

Heavy Ion Experiments; Vector Boson Production;

D O I：

10.1007/JHEP05(2023)036

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 the W bosons measured in p-Pb collisions at a centre-of-mass energy per nucleon-nucleon collision root sNN = 8.16 TeV and Pb-Pb collisions at root sNN = 5.02 TeV with ALICE at the LHC is presented. The W-+/- bosons are measured via their muonic decay channel, with the muon reconstructed in the pseudorapidity region -4 <eta(mu)(lab)< -2.5 with transverse momentum p(mu)(T)> 10 GeV/c. While in Pb-Pb collisions the measurements are performed in the forward (2.5 <y(cms)(mu)< 4) rapidity region, in p-Pb collisions, where the centre-of-mass frame is boosted with respect to the laboratory frame, the measurements are performed in the backward (-4.46 <y(cms)(mu)< -2.96) and forward (2.03 <y(cms)(mu)< 3.53) rapidity regions. The W- and W+ production cross sections, lepton-charge asymmetry, and nuclear modification factors are evaluated as a function of the muon rapidity. In order to study the production as a function of the p-Pb collision centrality, the production cross sections of the W- and W+ bosons are combined and normalised to the average number of binary nucleon-nucleon collision < N-coll >. In Pb-Pb collisions, the same measurements are presented as a function of the collision centrality. Study of the binary scaling of the W-+/--boson cross sections in p-Pb and Pb-Pb collisions is also reported. The results are compared with perturbative QCD calculations, with and without nuclear modifications of the Parton Distribution Functions (PDFs), as well as with available data at the LHC. Significant deviations from the theory expectations are found in the two collision systems, indicating that the measurements can provide additional constraints for the determination of nuclear PDFs and in particular of the light-quark distributions.

引用

页数：44

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Arnaldi, R.
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Averbeck, R.
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Ahuja, I.
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Ali, B.
Ali, Y.
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Alkin, A.
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Alt, T.
Altenkamper, L.
Altsybeev, I
Anaam, M. N.
Andrei, C.
Andreou, D.
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Anguelov, V
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Antonioli, P.
Apadula, N.
Aphecetche, L.
Appelshaeuser, H.
Arcelli, S.
Arnaldi, R.
Arratia, M.
Arsene, I. C.
Arslandok, M.
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