Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector

M. Aaboud; G. Aad; B. Abbott; O. Abdinov; B Abeloos; DK Abhayasinghe; S.H. Abidi; Ossama Sherif Alexander Abouzeid; NL Abraham; H. Abramowicz; Y. Abulaiti; Sosuke Adachi; L. Adamczyk; J. Adelman; M. Adersberger; A. Adiguzel; T. Adye; A. A. Affolder; Y.  Afik; C. Agheorghiesei; J. A. Aguilar-Saavedra; G. Aielli; Alejandro Alonso Diaz; Milena Bajic; Geert-Jan Besjes; Mogens Dam; Flavia de Almeida Dias; Gorm Aske Gram Krohn Galster; Peter Henrik Hansen; Jørn Dines Hansen; Jørgen Beck Hansen; James William Monk; hqz214 hqz214; Troels Christian Petersen; Simon Holm Stark; Graig Wiglesworth; Stefania Xella

doi:10.1140/epjc/s10052-018-6243-9

Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, O. Abdinov, B Abeloos, DK Abhayasinghe, S.H. Abidi, Ossama Sherif Alexander Abouzeid, NL Abraham, H. Abramowicz, Y. Abulaiti, Sosuke Adachi, L. Adamczyk, J. Adelman, M. Adersberger, A. Adiguzel, T. Adye, A. A. Affolder, Y. Afik, C. AgheorghieseiJ. A. Aguilar-Saavedra, G. Aielli, Alejandro Alonso Diaz, Milena Bajic, Geert-Jan Besjes, Mogens Dam, Flavia de Almeida Dias, Gorm Aske Gram Krohn Galster, Peter Henrik Hansen, Jørn Dines Hansen, Jørgen Beck Hansen, James William Monk, hqz214 hqz214, Troels Christian Petersen, Simon Holm Stark, Graig Wiglesworth, Stefania Xella

Experimental Particle Physics

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Abstract

The elliptic flow of prompt and non-prompt J/ ψ was measured in the dimuon decay channel in Pb+Pb collisions at sNN=5.02 TeV with an integrated luminosity of 0.42nb-1 with the ATLAS detector at the LHC. The prompt and non-prompt signals are separated using a two-dimensional simultaneous fit of the invariant mass and pseudo-proper decay time of the dimuon system from the J/ ψ decay. The measurement is performed in the kinematic range of dimuon transverse momentum and rapidity 9 < p_T< 30 GeV , | y| < 2 , and 0–60% collision centrality. The elliptic flow coefficient, v₂, is evaluated relative to the event plane and the results are presented as a function of transverse momentum, rapidity and centrality. It is found that prompt and non-prompt J/ ψ mesons have non-zero elliptic flow. Prompt J/ ψv₂ decreases as a function of p_T, while for non-prompt J/ ψ it is, with limited statistical significance, consistent with a flat behaviour over the studied kinematic region. There is no observed dependence on rapidity or centrality.

Original language	English
Article number	784
Journal	European Physical Journal C
Volume	78
Number of pages	23
ISSN	1434-6044
DOIs	https://doi.org/10.1140/epjc/s10052-018-6243-9
Publication status	Published - 1 Sept 2018

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Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, DK., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abulaiti, Y., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., Affolder, A. A., Afik, Y., ... Xella, S. (2018). Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector. European Physical Journal C, 78, Article 784. https://doi.org/10.1140/epjc/s10052-018-6243-9

Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abhayasinghe, DK, Abidi, SH, Abouzeid, OSA, Abraham, NL, Abramowicz, H, Abulaiti, Y, Adachi, S, Adamczyk, L, Adelman, J, Adersberger, M, Adiguzel, A, Adye, T, Affolder, AA, Afik, Y, Agheorghiesei, C, Aguilar-Saavedra, JA, Aielli, G, Alonso Diaz, A, Bajic, M, Besjes, G-J, Dam, M, de Almeida Dias, F, Galster, GAGK, Hansen, PH , Hansen, JD , Hansen, JB, Monk, JW, hqz214, H, Petersen, TC, Stark, SH, Wiglesworth, G & Xella, S 2018, 'Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector', European Physical Journal C, vol. 78, 784. https://doi.org/10.1140/epjc/s10052-018-6243-9

@article{d83ec103fc4e4513953127d3e79ab45e,

title = "Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector",

abstract = "The elliptic flow of prompt and non-prompt J/ ψ was measured in the dimuon decay channel in Pb+Pb collisions at sNN=5.02 TeV with an integrated luminosity of 0.42nb-1 with the ATLAS detector at the LHC. The prompt and non-prompt signals are separated using a two-dimensional simultaneous fit of the invariant mass and pseudo-proper decay time of the dimuon system from the J/ ψ decay. The measurement is performed in the kinematic range of dimuon transverse momentum and rapidity 9 < pT< 30 GeV , | y| < 2 , and 0–60% collision centrality. The elliptic flow coefficient, v2, is evaluated relative to the event plane and the results are presented as a function of transverse momentum, rapidity and centrality. It is found that prompt and non-prompt J/ ψ mesons have non-zero elliptic flow. Prompt J/ ψv2 decreases as a function of pT, while for non-prompt J/ ψ it is, with limited statistical significance, consistent with a flat behaviour over the studied kinematic region. There is no observed dependence on rapidity or centrality.",

author = "M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B Abeloos and DK Abhayasinghe and S.H. Abidi and Abouzeid, {Ossama Sherif Alexander} and NL Abraham and H. Abramowicz and Y. Abulaiti and Sosuke Adachi and L. Adamczyk and J. Adelman and M. Adersberger and A. Adiguzel and T. Adye and Affolder, {A. A.} and Y. Afik and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and G. Aielli and {Alonso Diaz}, Alejandro and Milena Bajic and Geert-Jan Besjes and Mogens Dam and {de Almeida Dias}, Flavia and Galster, {Gorm Aske Gram Krohn} and Hansen, {Peter Henrik} and Hansen, {J{\o}rn Dines} and Hansen, {J{\o}rgen Beck} and Monk, {James William} and hqz214 hqz214 and Petersen, {Troels Christian} and Stark, {Simon Holm} and Graig Wiglesworth and Stefania Xella",

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doi = "10.1140/epjc/s10052-018-6243-9",

language = "English",

volume = "78",

journal = "European Physical Journal C",

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TY - JOUR

T1 - Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdinov, O.

AU - Abeloos, B

AU - Abhayasinghe, DK

AU - Abidi, S.H.

AU - Abouzeid, Ossama Sherif Alexander

AU - Abraham, NL

AU - Abramowicz, H.

AU - Abulaiti, Y.

AU - Adachi, Sosuke

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Aielli, G.

AU - Alonso Diaz, Alejandro

AU - Bajic, Milena

AU - Besjes, Geert-Jan

AU - Dam, Mogens

AU - de Almeida Dias, Flavia

AU - Galster, Gorm Aske Gram Krohn

AU - Hansen, Peter Henrik

AU - Hansen, Jørn Dines

AU - Hansen, Jørgen Beck

AU - Monk, James William

AU - hqz214, hqz214

AU - Petersen, Troels Christian

AU - Stark, Simon Holm

AU - Wiglesworth, Graig

AU - Xella, Stefania

PY - 2018/9/1

Y1 - 2018/9/1

N2 - The elliptic flow of prompt and non-prompt J/ ψ was measured in the dimuon decay channel in Pb+Pb collisions at sNN=5.02 TeV with an integrated luminosity of 0.42nb-1 with the ATLAS detector at the LHC. The prompt and non-prompt signals are separated using a two-dimensional simultaneous fit of the invariant mass and pseudo-proper decay time of the dimuon system from the J/ ψ decay. The measurement is performed in the kinematic range of dimuon transverse momentum and rapidity 9 < pT< 30 GeV , | y| < 2 , and 0–60% collision centrality. The elliptic flow coefficient, v2, is evaluated relative to the event plane and the results are presented as a function of transverse momentum, rapidity and centrality. It is found that prompt and non-prompt J/ ψ mesons have non-zero elliptic flow. Prompt J/ ψv2 decreases as a function of pT, while for non-prompt J/ ψ it is, with limited statistical significance, consistent with a flat behaviour over the studied kinematic region. There is no observed dependence on rapidity or centrality.

AB - The elliptic flow of prompt and non-prompt J/ ψ was measured in the dimuon decay channel in Pb+Pb collisions at sNN=5.02 TeV with an integrated luminosity of 0.42nb-1 with the ATLAS detector at the LHC. The prompt and non-prompt signals are separated using a two-dimensional simultaneous fit of the invariant mass and pseudo-proper decay time of the dimuon system from the J/ ψ decay. The measurement is performed in the kinematic range of dimuon transverse momentum and rapidity 9 < pT< 30 GeV , | y| < 2 , and 0–60% collision centrality. The elliptic flow coefficient, v2, is evaluated relative to the event plane and the results are presented as a function of transverse momentum, rapidity and centrality. It is found that prompt and non-prompt J/ ψ mesons have non-zero elliptic flow. Prompt J/ ψv2 decreases as a function of pT, while for non-prompt J/ ψ it is, with limited statistical significance, consistent with a flat behaviour over the studied kinematic region. There is no observed dependence on rapidity or centrality.

U2 - 10.1140/epjc/s10052-018-6243-9

DO - 10.1140/epjc/s10052-018-6243-9

M3 - Journal article

C2 - 30968860

SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

M1 - 784

ER -

Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN = 5.02 TeV with the ATLAS detector

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