Prompt and non-prompt J / elliptic flow in Pb+Pb collisions at s NN = 5.02 Tev with the ATLAS detector. uri icon

abstract

  • The elliptic flow of prompt and non-prompt J / was measured in the dimuon decay channel in Pb+Pb collisions at s NN = 5.02 TeV with an integrated luminosity of 0.42 nb - 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 / 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, v 2 , 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 / mesons have non-zero elliptic flow. Prompt J / v 2 decreases as a function of p T , while for non-prompt J / 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.

altmetric score

  • 0.25

author list (cited authors)

  • Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D. K., ... ATLAS Collaboration.

citation count

  • 12

complete list of authors

  • Aaboud, M||Aad, G||Abbott, B||Abdinov, O||Abeloos, B||Abhayasinghe, DK||Abidi, SH||AbouZeid, OS||Abraham, NL||Abramowicz, H||Abreu, H||Abulaiti, Y||Acharya, BS||Adachi, S||Adamczyk, L||Adelman, J||Adersberger, M||Adiguzel, A||Adye, T||Affolder, AA||Afik, Y||Agheorghiesei, C||Aguilar-Saavedra, JA||Ahmadov, F||Aielli, G||Akatsuka, S||Åkesson, TPA||Akilli, E||Akimov, AV||Alberghi, GL||Albert, J||Albicocco, P||Alconada Verzini, MJ||Alderweireldt, S||Aleksa, M||Aleksandrov, IN||Alexa, C||Alexopoulos, T||Alhroob, M||Ali, B||Alimonti, G||Alison, J||Alkire, SP||Allaire, C||Allbrooke, BMM||Allen, BW||Allport, PP||Aloisio, A||Alonso, A||Alonso, F||Alpigiani, C||Alshehri, AA||Alstaty, MI||Alvarez Gonzalez, B||Álvarez Piqueras, D||Alviggi, MG||Amadio, BT||Amaral Coutinho, Y||Ambroz, L||Amelung, C||Amidei, D||Amor Dos Santos, SP||Amoroso, S||Amrouche, CS||Anastopoulos, C||Ancu, LS||Andari, N||Andeen, T||Anders, CF||Anders, JK||Anderson, KJ||Andreazza, A||Andrei, V||Anelli, CR||Angelidakis, S||Angelozzi, I||Angerami, A||