Measurement of charged jet cross section in pp collisions at root s=5.02 TeV

The ALICE Collaboration; S. Acharya; B. Chang; D. J. Kim; F. Krizek; M. M. Mieskolainen; R. Orava; J. E. Parkkila; J. Rak; H. Rytkönen; Sami Räsänen; S. Saarinen; M. Slupecki; T. W. Snellman; W. H. Trzaska; M. Vargyas; J. Viinikainen; Z. Zhou

doi:10.1103/PhysRevD.100.092004

Measurement of charged jet cross section in pp collisions at root s=5.02 TeV

The ALICE Collaboration, S. Acharya, B. Chang, D. J. Kim, F. Krizek, M. M. Mieskolainen, R. Orava, J. E. Parkkila, J. Rak, H. Rytkönen, Sami Räsänen, S. Saarinen, M. Slupecki, T. W. Snellman, W. H. Trzaska, M. Vargyas, J. Viinikainen, Z. Zhou

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5 <p(T) <100 GeV/c in pp collisions at the center-of-mass energy of root s = 5.02 TeV with the ALICE detector. The jets are reconstructed using the anti-k(T) algorithm with resolution parameters R = 0.2, 0.3, 0.4, and 0.6 in the pseudorapidity range vertical bar eta vertical bar <0.9 - R. The charged jet cross sections are compared with the leading-order (LO) and to next-to-leading-order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the NLO calculations agree better with the measurements. The cross section ratios for different resolution parameters are also measured. These ratios increase from low p(T) to high p(T) and saturate at high p(T), indicating that jet collimation is larger at high p(T) than at low p(T). These results provide a precision test of pQCD predictions and serve as a baseline for the measurement in Pb-Pb collisions at the same energy to quantify the effects of the hot and dense medium created in heavy-ion collisions at the LHC.

Original language	English
Article number	133
Journal	Physical Review D
Volume	100
Issue number	9
Number of pages	22
ISSN	2470-0010
DOIs	https://doi.org/10.1103/PhysRevD.100.092004
Publication status	Published - 13 Nov 2019
MoE publication type	A1 Journal article-refereed

Fields of Science

114 Physical sciences

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PhysRevD.100.092004Final published version, 1.18 MBLicence: CC BY

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The ALICE Collaboration, Acharya, S., Chang, B., Kim, D. J., Krizek, F., Mieskolainen, M. M., Orava, R., Parkkila, J. E., Rak, J., Rytkönen, H., Räsänen, S., Saarinen, S., Slupecki, M., Snellman, T. W., Trzaska, W. H., Vargyas, M., Viinikainen, J., & Zhou, Z. (2019). Measurement of charged jet cross section in pp collisions at root s=5.02 TeV. Physical Review D, 100(9), [133]. https://doi.org/10.1103/PhysRevD.100.092004

The ALICE Collaboration ; Acharya, S. ; Chang, B. ; Kim, D. J. ; Krizek, F. ; Mieskolainen, M. M. ; Orava, R. ; Parkkila, J. E. ; Rak, J. ; Rytkönen, H. ; Räsänen, Sami ; Saarinen, S. ; Slupecki, M. ; Snellman, T. W. ; Trzaska, W. H. ; Vargyas, M. ; Viinikainen, J. ; Zhou, Z. / Measurement of charged jet cross section in pp collisions at root s=5.02 TeV. In: Physical Review D. 2019 ; Vol. 100, No. 9.

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title = "Measurement of charged jet cross section in pp collisions at root s=5.02 TeV",

abstract = "The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5 <p(T) <100 GeV/c in pp collisions at the center-of-mass energy of root s = 5.02 TeV with the ALICE detector. The jets are reconstructed using the anti-k(T) algorithm with resolution parameters R = 0.2, 0.3, 0.4, and 0.6 in the pseudorapidity range vertical bar eta vertical bar <0.9 - R. The charged jet cross sections are compared with the leading-order (LO) and to next-to-leading-order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the NLO calculations agree better with the measurements. The cross section ratios for different resolution parameters are also measured. These ratios increase from low p(T) to high p(T) and saturate at high p(T), indicating that jet collimation is larger at high p(T) than at low p(T). These results provide a precision test of pQCD predictions and serve as a baseline for the measurement in Pb-Pb collisions at the same energy to quantify the effects of the hot and dense medium created in heavy-ion collisions at the LHC.",

keywords = "114 Physical sciences",

author = "{The ALICE Collaboration} and S. Acharya and D. Adamova and Adhya, {S. P.} and A. Adler and J. Adolfsson and Aggarwal, {M. M.} and {Aglieri Rinella}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, {S. U.} and S. Aiola and A. Akindinov and M. Al-Turany and Alam, {S. N.} and Albuquerque, {D. S. D.} and D. Aleksandrov and Brucken, {E. J.} and B. Chang and S. Das and S. De and S. Deb and A. Gupta and R. Gupta and Hilden, {T. E.} and Islam, {M. S.} and Khan, {S. A.} and Kim, {D. J.} and F. Krizek and X. Li and V. Litichevskyi and A. Liu and A. Marin and Mieskolainen, {M. M.} and R. Orava and Parkkila, {J. E.} and J. Rak and A. Rehman and M. Richter and A. Rossi and H. Rytk{\"o}nen and Sami R{\"a}s{\"a}nen and S. Saarinen and M. Slupecki and Snellman, {T. W.} and Trzaska, {W. H.} and M. Vargyas and J. Viinikainen and Weber, {S. G.} and Y. Zhou and Z. Zhou",

year = "2019",

month = nov,

day = "13",

doi = "10.1103/PhysRevD.100.092004",

language = "English",

volume = "100",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society ",

number = "9",

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The ALICE Collaboration, Acharya, S, Chang, B, Kim, DJ, Krizek, F, Mieskolainen, MM, Orava, R, Parkkila, JE, Rak, J, Rytkönen, H, Räsänen, S, Saarinen, S, Slupecki, M, Snellman, TW, Trzaska, WH, Vargyas, M, Viinikainen, J & Zhou, Z 2019, 'Measurement of charged jet cross section in pp collisions at root s=5.02 TeV', Physical Review D, vol. 100, no. 9, 133. https://doi.org/10.1103/PhysRevD.100.092004

Measurement of charged jet cross section in pp collisions at root s=5.02 TeV. / The ALICE Collaboration; Acharya, S.; Chang, B.; Kim, D. J.; Krizek, F.; Mieskolainen, M. M.; Orava, R.; Parkkila, J. E.; Rak, J.; Rytkönen, H.; Räsänen, Sami; Saarinen, S.; Slupecki, M.; Snellman, T. W.; Trzaska, W. H.; Vargyas, M.; Viinikainen, J.; Zhou, Z.

In: Physical Review D, Vol. 100, No. 9, 133, 13.11.2019.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Measurement of charged jet cross section in pp collisions at root s=5.02 TeV

AU - The ALICE Collaboration

AU - Acharya, S.

AU - Adamova, D.

AU - Adhya, S. P.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Albuquerque, D. S. D.

AU - Aleksandrov, D.

AU - Brucken, E. J.

AU - Chang, B.

AU - Das, S.

AU - De, S.

AU - Deb, S.

AU - Gupta, A.

AU - Gupta, R.

AU - Hilden, T. E.

AU - Islam, M. S.

AU - Khan, S. A.

AU - Kim, D. J.

AU - Krizek, F.

AU - Li, X.

AU - Litichevskyi, V.

AU - Liu, A.

AU - Marin, A.

AU - Mieskolainen, M. M.

AU - Orava, R.

AU - Parkkila, J. E.

AU - Rak, J.

AU - Rehman, A.

AU - Richter, M.

AU - Rossi, A.

AU - Rytkönen, H.

AU - Räsänen, Sami

AU - Saarinen, S.

AU - Slupecki, M.

AU - Snellman, T. W.

AU - Trzaska, W. H.

AU - Vargyas, M.

AU - Viinikainen, J.

AU - Weber, S. G.

AU - Zhou, Y.

AU - Zhou, Z.

PY - 2019/11/13

Y1 - 2019/11/13

N2 - The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5 <p(T) <100 GeV/c in pp collisions at the center-of-mass energy of root s = 5.02 TeV with the ALICE detector. The jets are reconstructed using the anti-k(T) algorithm with resolution parameters R = 0.2, 0.3, 0.4, and 0.6 in the pseudorapidity range vertical bar eta vertical bar <0.9 - R. The charged jet cross sections are compared with the leading-order (LO) and to next-to-leading-order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the NLO calculations agree better with the measurements. The cross section ratios for different resolution parameters are also measured. These ratios increase from low p(T) to high p(T) and saturate at high p(T), indicating that jet collimation is larger at high p(T) than at low p(T). These results provide a precision test of pQCD predictions and serve as a baseline for the measurement in Pb-Pb collisions at the same energy to quantify the effects of the hot and dense medium created in heavy-ion collisions at the LHC.

AB - The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5 <p(T) <100 GeV/c in pp collisions at the center-of-mass energy of root s = 5.02 TeV with the ALICE detector. The jets are reconstructed using the anti-k(T) algorithm with resolution parameters R = 0.2, 0.3, 0.4, and 0.6 in the pseudorapidity range vertical bar eta vertical bar <0.9 - R. The charged jet cross sections are compared with the leading-order (LO) and to next-to-leading-order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the NLO calculations agree better with the measurements. The cross section ratios for different resolution parameters are also measured. These ratios increase from low p(T) to high p(T) and saturate at high p(T), indicating that jet collimation is larger at high p(T) than at low p(T). These results provide a precision test of pQCD predictions and serve as a baseline for the measurement in Pb-Pb collisions at the same energy to quantify the effects of the hot and dense medium created in heavy-ion collisions at the LHC.

KW - 114 Physical sciences

U2 - 10.1103/PhysRevD.100.092004

DO - 10.1103/PhysRevD.100.092004

M3 - Article

VL - 100

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 9

M1 - 133

ER -