Measurement of inclusive charged-particle b-jet production in pp and p-Pb collisions at √SNN=5.02 TeV

被引：0

作者：

Acharya, S. ^{[159
]}

Adamova, D. ^{[114
]}

Adler, A. ^{[92
]}

Adolfsson, J. ^{[99
]}

Rinella, G. Aglieri ^{[51
]}

Agnello, M. ^{[35
,45
]}

Agrawal, N. ^{[71
]}

Ahammed, Z. ^{[159
]}

Ahmad, S. ^{[24
]}

Ahn, S. U. ^{[94
]}

Ahuja, I ^{[55
]}

Akbar, Z. ^{[68
]}

Akindinov, A. ^{[111
]}

Al-Turany, M. ^{[126
,127
]}

Alam, S. N. ^{[24
]}

Aleksandrov, D. ^{[107
]}

Alessandro, B. ^{[77
]}

Alfanda, H. M. ^{[14
]}

Alfaro Molina, R. ^{[89
]}

Ali, B. ^{[24
]}

Ali, Y. ^{[22
]}

Alici, A. ^{[36
,37
]}

Alizadehvandchali, N. ^{[144
]}

Alkin, A. ^{[51
]}

Alme, J. ^{[29
]}

Alocco, G. ^{[72
]}

Alt, T. ^{[86
]}

Altsybeev, I ^{[132
]}

Anaam, M. N. ^{[14
]}

Andrei, C. ^{[65
]}

Andreou, D. ^{[109
]}

Andronic, A. ^{[162
]}

Angeletti, M. ^{[51
]}

Anguelov, V ^{[123
]}

Antinori, F. ^{[74
]}

Antonioli, P. ^{[71
]}

Anuj, C. ^{[24
]}

Apadula, N. ^{[98
]}

Aphecetche, L. ^{[134
]}

Appelshaeuser, H. ^{[86
]}

Arcelli, S. ^{[36
,37
]}

Arnaldi, R. ^{[77
]}

Arsene, I. C. ^{[28
]}

Arslandok, M. ^{[164
]}

Augustinus, A. ^{[51
]}

Averbeck, R. ^{[126
,127
]}

Aziz, S. ^{[96
]}

Azmi, M. D. ^{[24
]}

Badala, A. ^{[73
]}

Baek, Y. W. ^{[58
]}

机构：

[1] Italian Natl Agcy New Technol Energy & Sustainabl, Bologna, Italy

[2] Politecn Torino, Dipartimento DET, Turin, Italy

[3] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow, Russia

[4] Aligarh Muslim Univ, Dept Appl Phys, Aligarh, Uttar Pradesh, India

[5] Univ Wroclaw, Inst Theoret Phys, Wroclaw, Poland

[6] Univ Kansas, Lawrence, KS 66045 USA

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

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

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

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

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

[12] Budker Inst Nucl Phys, Novosibirsk, Russia

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

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

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

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

[17] CINVESTAV, Ctr Invest & Estudios Avanzados, Merida, Mexico

[18] Chicago State Univ, Chicago, IL USA

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

[20] Chungbuk Natl Univ, Cheongju, South Korea

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

[22] COMSATS Univ Islamabad, Islamabad, Pakistan

[23] Creighton Univ, Omaha, NE 68178 USA

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[44] Grp Collegato INFN, Salerno, Italy

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

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

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

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

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

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2022年 / 01期

基金：

英国科学技术设施理事会;

关键词：

Lepton-Nucleon Scattering (experiments); HADRONIC SCATTERING; MULTIPLE-SCATTERING; POWER CORRECTIONS; QUARK;

D O I：

10.1007/JHEP01(2022)178

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 measurement of the inclusive b-jet production cross section is presented in pp and p-Pb collisions at root S-NN = 5.02 TeV, using data collected with the ALICE detector at the LHC. The jets were reconstructed in the central rapidity region vertical bar eta vertical bar < 0.5 from charged particles using the anti-kT algorithm with resolution parameter R = 0.4. Identification of b jets exploits the long lifetime of b hadrons, using the properties of secondary vertices and impact parameter distributions. The p(T)-differential inclusive production cross section of b jets, as well as the corresponding inclusive b-jet fraction, are reported for pp and p-Pb collisions in the jet transverse momentum range 10 <= p(T,ch jet) <= 100 GeV/c, together with the nuclear modification factor, R-pPb(b-jet). The analysis thus extends the lower p(T) limit of b-jet measurements at the LHC. The nuclear modification factor is found to be consistent with unity, indicating that the production of b jets in p-Pb at root S-NN = 5.02 TeV is not affected by cold nuclear matter effects within the current precision. The measurements are well reproduced by POWHEG NLO pQCD calculations with PYTHIA fragmentation.

引用

页数：41

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