Quarkonium suppression in heavy-ion collisions: An open quantum system approach
Brambilla, N., Escobedo Espinosa, M., Soto, J., & Vairo, A. (2017). Quarkonium suppression in heavy-ion collisions: An open quantum system approach. Physical Review D, 96 (3), 034021. doi:10.1103/PhysRevD.96.034021
Published in
Physical Review DDate
2017Copyright
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
We address the evolution of heavy-quarkonium states in an expanding quark-gluon plasma by
implementing effective field theory techniques in the framework of open quantum systems. In this
setting we compute the nuclear modification factors for quarkonia that are S-wave Coulombic bound states
in a strongly coupled quark-gluon plasma. The calculation is performed at an accuracy that is leading order
in the heavy-quark density expansion and next-to-leading order in the multipole expansion. The
quarkonium density-matrix evolution equations can be written in the Lindblad form, and, hence, they
account for both dissociation and recombination. Thermal mass shifts, thermal widths and the Lindblad
equation itself depend on only two nonperturbative parameters: the heavy-quark momentum diffusion
coefficient and its dispersive counterpart. Finally, by numerically solving the Lindblad equation, we
provide results for the ϒð1SÞ and ϒð2SÞ suppression.
Publisher
American Physical SocietyISSN Search the Publication Forum
2470-0010Metadata
Show full item recordCollections
Related items
Showing items with similar title or keywords.
-
Approach to equilibrium of a quarkonium in a quark-gluon plasma
Blaizot, Jean-Paul; Escobedo Espinosa, Miguel (American Physical Society, 2018)We derive equations of motion for the reduced density matrix of a heavy quarkonium in contact with a quark-gluon plasma in thermal equilibrium. These equations allow in particular a proper treatment of the regime when the ... -
Scattering and gluon emission in a color field : a light-front Hamiltonian approach
Li, Meijian; Lappi, Tuomas; Zhao, Xingbo (American Physical Society (APS), 2021)We develop a numerical method to nonperturbatively study scattering and gluon emission of a quark from a colored target using a light-front Hamiltonian approach. The target is described as a classical color field, as in ... -
Z-boson production in p-Pb collisions at √sNN = 8.16 TeV and Pb-Pb collisions at √sNN = 5.02 TeV
ALICE collaboration (Springer, 2020)Measurement of Z-boson production in p-Pb collisions at √sNN = 8.16 TeV and Pb-Pb collisions at √sNN = 5.02 TeV is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity ... -
Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration; Chang, BeomSu; Kim, Dong Jo; Kral, Jiri; Rak, Jan; Räsänen, Sami; Slupecki, Maciej; Snellman, Tomas; Trzaska, Wladyslaw; Vargyas, Márton; Viinikainen, Jussi (Springer Berlin Heidelberg, 2015)The nuclear modification factor, RAA, of the prompt charmed mesons D0 , D+ and D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy √ sNN = 2.76 TeV in two ... -
Jet-Fragmentation Transverse Momentum from Di-Hadrons Correlations in √s_NN = 5.02 TeV Pb-Pb Collisions
Gilbert, Alexander Kevin (2020)The jets’ transverse structure in Pb-Pb collision system has been studied with jet-fragmentation transverse momentum (jT ) distribution. The data were collected from ALICE experiment at LHC in energy √s_NN = 5.02 TeV per ...