Inclusive photon production at forward rapidities in pp and p-Pb collisions at √sNN=5.02 TeV

被引：1

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：

EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 07期

基金：

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

关键词：

PROTON-PROTON COLLISIONS; CHARGED-PARTICLE MULTIPLICITIES; PSEUDORAPIDITY DENSITY; CENTRALITY DEPENDENCE; LEAD COLLISIONS; LONG-RANGE; NEAR-SIDE; DISTRIBUTIONS; ROOT-S=0.9; LHC;

D O I：

10.1140/epjc/s10052-023-11729-y

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：

A study of multiplicity and pseudorapidity distributions of inclusive photons measured in pp and p-Pb collisions at a center-of-mass energy per nucleon-nucleon collision of root s(NN) = 5.02 TeV using the ALICE detector in the forward pseudorapidity region 2.3<eta(lab) < 3.9 is presented. Measurements in p-Pb collisions are reported for two beam configurations in which the directions of the proton and lead ion beam were reversed. The pseudorapidity distributions in p-Pb collisions are obtained for seven centrality classes which are defined based on different event activity estimators, i.e., the charged-particle multiplicity measured at midrapidity as well as the energy deposited in a calorimeter at beam rapidity. The inclusive photon multiplicity distributions for both pp and p-Pb collisions are described by double negative binomial distributions. The pseudorapidity distributions of inclusive photons are compared to those of charged particles at midrapidity in pp collisions and for different centrality classes in p-Pb collisions. The results are compared to predictions from various MonteCarlo event generators. None of the generators considered in this paper reproduces the inclusive photon multiplicity distributions in the reported multiplicity range. The pseudorapidity distributions are, however, better described by the same generators.

引用

页数：26

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