Measurement of the radius dependence of charged-particle jet suppression in Pb-Pb collisions at √SNN=5.02 TeV

被引：14

作者：

Acharya, S. ^{[137
]}

Adamova, D. ^{[96
]}

Adler, A. ^{[80
]}

Rinella, G. Aglieri ^{[42
]}

Agnello, M. ^{[29
,38
]}

Agrawal, N. ^{[61
]}

Ahammed, Z. ^{[145
]}

Ahmad, S. ^{[17
]}

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

Ahuja, I. ^{[47
]}

Akindinov, A. ^{[151
]}

Al-Turany, M. ^{[107
,108
]}

Aleksandrov, D. ^{[151
]}

Alessandro, B. ^{[66
]}

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

Molina, R. Alfaro ^{[77
]}

Ali, B. ^{[17
]}

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

Alizadehvandchali, N. ^{[126
]}

Alkin, A. ^{[42
]}

Alme, J. ^{[22
]}

Alocco, G. ^{[62
]}

Alt, T. ^{[74
]}

Altsybeev, I. ^{[151
]}

Alvarado, J. R. ^{[54
]}

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

Andrei, C. ^{[55
]}

Andronic, A. ^{[136
]}

Anguelov, V. ^{[104
]}

Antinori, F. ^{[64
]}

Antonioli, P. ^{[61
]}

Apadula, N. ^{[84
]}

Aphecetche, L. ^{[114
]}

Appelshauser, H.

Arata, C. ^{[83
]}

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

Aresti, M. ^{[62
]}

Arnaldi, R. ^{[66
]}

Arneiro, J. G. M. C. A. ^{[121
]}

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

Arslandok, M. ^{[148
]}

Augustinus, A. ^{[42
]}

Averbeck, R. ^{[107
,108
]}

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

Badala, A. ^{[63
]}

Bae, J. ^{[115
]}

Baek, Y. W. ^{[50
]}

Bai, X. ^{[130
]}

Bailhache, R. ^{[74
]}

Bailung, Y. ^{[58
]}

机构：

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

[2] AGH Univ Krakow, Krakow, Poland

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

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

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

[6] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 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, 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 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 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] INFN, Grp Collegato, Salerno, Italy

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

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

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

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

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

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

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

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

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

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

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

[49] Fudan Univ, Shanghai, Peoples R China

[50] Gangneung Wonju Natl Univ, Kangnung, South Korea

来源：

PHYSICS LETTERS B | 2024年 / 849卷

基金：

英国科学技术设施理事会;

关键词：

TRANSVERSE-MOMENTUM DEPENDENCE; LEAD-LEAD COLLISIONS; QUARK-GLUON PLASMA; PP COLLISIONS; CENTRALITY DEPENDENCE; ROOT-S-NN=2.76 TEV; CROSS-SECTION; PERSPECTIVE;

D O I：

10.1016/j.physletb.2023.138412

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb-Pb collision data at a center -of -mass energy per nucleon-nucleon collision root SNN = 5.02 TeV. Charged -particle jets are reconstructed using the anti-kT algorithm with resolution parameters R = 0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R = 0.2, 0.4, 0.6 in central (0-10%), semi -central (30-50%), and peripheral (60-80%) Pb-Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet pT >= 40 GeV/c at R = 0.6 in central Pb-Pb collisions. This is an important step for discriminating different models of jet quenching in the quark-gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and nuclear modification factor ratios for different jet resolution parameters of charged -particle jets are presented and compared to model predictions. A mild dependence of the nuclear modification factor ratios on collision centrality and resolution parameter is observed. The results are compared to a variety of jet -quenching models with varying levels of agreement.

引用

页数：22

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