Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Constraints on jet quenching in p-Pb collisions at root s(NN)=5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions. / ALICE Collaboration.
в: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Том 783, 10.08.2018, стр. 95-113.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Constraints on jet quenching in p-Pb collisions at root s(NN)=5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions
AU - ALICE Collaboration
AU - Acharya, S.
AU - Aleksandrov, D.
AU - Altsybeev, I.
AU - Belyaev, V.
AU - Berdnikov, Y.
AU - Bogdanov, A.
AU - Feofilov, G.
AU - Fokin, S.
AU - Ivanov, M.
AU - Ivanov, V.
AU - Khan, P.
AU - Kim, D.
AU - Kim, D.
AU - Kim, E. J.
AU - Kim, J.
AU - Kim, J.
AU - Kim, M.
AU - Kim, S.
AU - Kim, T.
AU - Kiselev, S.
AU - Kondratiev, V.
AU - Kovalenko, V.
AU - Lee, S.
AU - Li, X. L.
AU - Li, X. L.
AU - Mamonov, A.
AU - Mao, Y.
AU - Marín, A.
AU - Nikolaev, S.
AU - Riabov, V.
AU - Samsonov, V.
AU - Shabanov, A.
AU - Smirnov, N.
AU - Song, J.
AU - Tikhonov, A.
AU - Vechernin, V.
AU - Vinogradov, A.
AU - Vinogradov, L.
AU - Wang, H.
AU - Wang, M.
AU - Zarochentsev, A.
AU - Zhang, H.
AU - Zhang, X.
AU - Zhang, Y.
AU - Zhang, C.
AU - Zhang, Z.
AU - Zhou, Y.
AU - Zhou, Z.
AU - Zhu, H.
AU - Zhu, J.
PY - 2018/8/10
Y1 - 2018/8/10
N2 - The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at sNN=5.02 TeV. Jets are reconstructed from charged-particle tracks using the anti-kT algorithm with resolution parameter R=0.2 and 0.4. A data-driven statistical approach is used to correct the uncorrelated background jet yield. Recoil jet distributions are reported for jet transverse momentum 15T,jet ch<50GeV/c and are compared in various intervals of p–Pb event activity, based on charged-particle multiplicity and zero-degree neutral energy in the forward (Pb-going) direction. The semi-inclusive observable is self-normalized and such comparisons do not require the interpretation of p–Pb event activity in terms of collision geometry, in contrast to inclusive jet observables. These measurements provide new constraints on the magnitude of jet quenching in small systems at the LHC. In p–Pb collisions with high event activity, the average medium-induced out-of-cone energy transport for jets with R=0.4 and 15T,jet ch<50GeV/c is measured to be less than 0.4 GeV/c at 90% confidence, which is over an order of magnitude smaller than a similar measurement for central Pb–Pb collisions at sNN=2.76TeV. Comparison is made to theoretical calculations of jet quenching in small systems, and to inclusive jet measurements in p–Pb collisions selected by event activity at the LHC and in d–Au collisions at RHIC.
AB - The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at sNN=5.02 TeV. Jets are reconstructed from charged-particle tracks using the anti-kT algorithm with resolution parameter R=0.2 and 0.4. A data-driven statistical approach is used to correct the uncorrelated background jet yield. Recoil jet distributions are reported for jet transverse momentum 15T,jet ch<50GeV/c and are compared in various intervals of p–Pb event activity, based on charged-particle multiplicity and zero-degree neutral energy in the forward (Pb-going) direction. The semi-inclusive observable is self-normalized and such comparisons do not require the interpretation of p–Pb event activity in terms of collision geometry, in contrast to inclusive jet observables. These measurements provide new constraints on the magnitude of jet quenching in small systems at the LHC. In p–Pb collisions with high event activity, the average medium-induced out-of-cone energy transport for jets with R=0.4 and 15T,jet ch<50GeV/c is measured to be less than 0.4 GeV/c at 90% confidence, which is over an order of magnitude smaller than a similar measurement for central Pb–Pb collisions at sNN=2.76TeV. Comparison is made to theoretical calculations of jet quenching in small systems, and to inclusive jet measurements in p–Pb collisions selected by event activity at the LHC and in d–Au collisions at RHIC.
KW - PLUS AU COLLISIONS
KW - HIGH TRANSVERSE-MOMENTUM
KW - CHARGED-PARTICLE PRODUCTION
KW - PROTON-LEAD COLLISIONS
KW - CENTRALITY DEPENDENCE
KW - LONG-RANGE
KW - NUCLEAR MODIFICATION
KW - AU+AU COLLISIONS
KW - PPB COLLISIONS
KW - 2-PARTICLE CORRELATIONS
UR - http://www.scopus.com/inward/record.url?scp=85049320790&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/constraints-jet-quenching-ppb-collisions-snn502tev-measured-eventactivity-dependence-semiinclusive-h
U2 - 10.1016/j.physletb.2018.05.059
DO - 10.1016/j.physletb.2018.05.059
M3 - Article
AN - SCOPUS:85049320790
VL - 783
SP - 95
EP - 113
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -
ID: 35153038