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

被引:0
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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
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.
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页数:41
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