J /ψ Elliptic Flow in Pb-Pb Collisions at sNN =5.02 TeV

(ALICE Collaboration)

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We report a precise measurement of the J/ψ elliptic flow in Pb-Pb collisions at sNN=5.02 TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at midrapidity (|y|<0.9) in the dielectron decay channel and at forward rapidity (2.5<y<4.0) in the dimuon channel, both down to zero transverse momentum. At forward rapidity, the elliptic flow v2 of the J/ψ is studied as a function of the transverse momentum and centrality. A positive v2 is observed in the transverse momentum range 2<pT<8 GeV/c in the three centrality classes studied and confirms with higher statistics our earlier results at sNN=2.76 TeV in semicentral collisions. At midrapidity, the J/ψ v2 is investigated as a function of the transverse momentum in semicentral collisions and found to be in agreement with the measurements at forward rapidity. These results are compared to transport model calculations. The comparison supports the idea that at low pT the elliptic flow of the J/ψ originates from the thermalization of charm quarks in the deconfined medium but suggests that additional mechanisms might be missing in the models.

Original languageEnglish (US)
Article number242301
JournalPhysical Review Letters
Volume119
Issue number24
DOIs
StatePublished - Dec 15 2017

Fingerprint

transverse momentum
collisions
mesons
statistics
quarks
detectors
decay

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

J /ψ Elliptic Flow in Pb-Pb Collisions at sNN =5.02 TeV. / (ALICE Collaboration).

In: Physical Review Letters, Vol. 119, No. 24, 242301, 15.12.2017.

Research output: Contribution to journalArticle

(ALICE Collaboration). / J /ψ Elliptic Flow in Pb-Pb Collisions at sNN =5.02 TeV. In: Physical Review Letters. 2017 ; Vol. 119, No. 24.
@article{5a736277f32e44ecaf19d8aa8f12f30b,
title = "J /ψ Elliptic Flow in Pb-Pb Collisions at sNN =5.02 TeV",
abstract = "We report a precise measurement of the J/ψ elliptic flow in Pb-Pb collisions at sNN=5.02 TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at midrapidity (|y|<0.9) in the dielectron decay channel and at forward rapidity (2.5",
author = "{(ALICE Collaboration)} and S. Acharya and D. Adamov{\'a} and J. Adolfsson and Aggarwal, {M. M.} and {Aglieri Rinella}, G. and M. Agnello and N. Agrawal and Z. Ahammed 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 B. Alessandro and {Alfaro Molina}, R. and Y. Ali and A. Alici and A. Alkin and J. Alme and T. Alt and L. Altenkamper and I. Altsybeev and {Alves Garcia Prado}, C. and C. Andrei and D. Andreou and Andrews, {H. A.} and A. Andronic and V. Anguelov and C. Anson and T. Antičić and F. Antinori and P. Antonioli and R. Anwar and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arnold, {O. W.} and Arsene, {I. C.} and M. Arslandok and B. Audurier and A. Augustinus and R. Averbeck and Azmi, {M. D.} and A. Badal{\`a} and Baek, {Y. W.} and S. Bagnasco and Seger, {Janet E.}",
year = "2017",
month = "12",
day = "15",
doi = "10.1103/PhysRevLett.119.242301",
language = "English (US)",
volume = "119",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "24",

}

TY - JOUR

T1 - J /ψ Elliptic Flow in Pb-Pb Collisions at sNN =5.02 TeV

AU - (ALICE Collaboration)

AU - Acharya, S.

AU - Adamová, D.

AU - Adolfsson, J.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

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 - Alessandro, B.

AU - Alfaro Molina, R.

AU - Ali, Y.

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Altenkamper, L.

AU - Altsybeev, I.

AU - Alves Garcia Prado, C.

AU - Andrei, C.

AU - Andreou, D.

AU - Andrews, H. A.

AU - Andronic, A.

AU - Anguelov, V.

AU - Anson, C.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anwar, R.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arnold, O. W.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Audurier, B.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Baek, Y. W.

AU - Bagnasco, S.

AU - Seger, Janet E.

PY - 2017/12/15

Y1 - 2017/12/15

N2 - We report a precise measurement of the J/ψ elliptic flow in Pb-Pb collisions at sNN=5.02 TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at midrapidity (|y|<0.9) in the dielectron decay channel and at forward rapidity (2.5

AB - We report a precise measurement of the J/ψ elliptic flow in Pb-Pb collisions at sNN=5.02 TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at midrapidity (|y|<0.9) in the dielectron decay channel and at forward rapidity (2.5

UR - http://www.scopus.com/inward/record.url?scp=85038376257&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038376257&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.119.242301

DO - 10.1103/PhysRevLett.119.242301

M3 - Article

VL - 119

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 24

M1 - 242301

ER -