Extraction of the heavy-quark potential from bottomonium observables in heavy-ion collisions

Du, Xiaojian; Liu, Shuai Y. F.; Rapp, Ralf

doi:10.1016/j.physletb.2019.07.032

Cited by 40 publications

(23 citation statements)

References 69 publications

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“…This can be understood in the context of open quantum systems in which the heavy-quark bound state is coupled to a thermal heat bath [26][27][28][29][30][31][32][33][34][35]. Such imaginary contributions also appear in the context of kinetic transport models since in these calculations one also includes the possibility of in-medium breakup [36][37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Islam

Strickland

2021

J. High Energ. Phys.

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We introduce a framework called Heavy Quarkonium Quantum Dynamics (HQQD) which can be used to compute the dynamical suppression of heavy quarkonia propagating in the quark-gluon plasma using real-time in-medium quantum evolution. Using HQQD we compute large sets of real-time solutions to the Schrödinger equation using a realistic in-medium complex-valued potential. We sample 2 million quarkonia wave packet trajectories and evolve them through the QGP using HQQD to obtain their survival probabilities. The computation is performed using three different HQQD model parameter sets in order to estimate our systematic uncertainty. After taking into account final state feed down we compare our results to existing experimental data for the suppression and elliptic flow of bottomonium states and find that HQQD predictions are good agreement with available data for RAA as a function of Npart and pT collected at $$ \sqrt{s_{\mathrm{NN}}} $$ s NN = 5.02 TeV. In the case of v2 for the various states, we find that the path-length dependence of ϒ(1s) suppression results in quite small v2 for ϒ(1s). Our prediction for the integrated elliptic flow for ϒ(1s) in the 10−90% centrality class, which now includes an estimate of the systematic error, is v2[ϒ(1s)] = 0.003 ± 0.0007 ±$$ {}_{0.0013}^{0.0006} $$ 0.0013 0.0006 . We also find that, due to their increased suppression, excited bottomonium states have a larger elliptic flow. Based on this observation we make predictions for v2[ϒ(2s)] and v2[ϒ(3s)] as a function of centrality and transverse momentum.

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Section: Introductionmentioning

confidence: 99%

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Islam

Strickland

2021

J. High Energ. Phys.

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“…It will be important to clarify the relation of the potential defined in the EFT approach here to the concept of potential acting as interaction kernel in the Lippmann-Schwinger equation (for the most recent study see[8]), which forms the basis of the T-matrix approach[9].…”

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confidence: 99%

Improved Gauss law model and in-medium heavy quarkonium at finite density and velocity

Lafferty

Rothkopf

2020

Phys. Rev. D

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We explore the in-medium properties of heavy-quarkonium states at finite baryo-chemical potential and finite transverse momentum based on a modern complex valued potential model. Our starting point is a novel, rigorous derivation of the generalized Gauss law for in-medium quarkonium, combining the non-perturbative physics of the vacuum bound state with a weak coupling description of the medium degrees of freedom. Its relation to previous models in the literature is discussed. We show that our approach is able to reproduce the complex lattice QCD heavy quark potential even in the non-perturbative regime, using a single temperature dependent parameter, the Debye mass m D . After vetting the Gauss law potential with state-of-the-art lattice QCD data, we extend it to the regime of finite baryon density and finite velocity, currently inaccessible to first principles simulations. In-medium spectral functions computed from the Gauss law potential are subsequently used to estimate the ψ /J/ψ ratio in heavy-ion collisions at different beam energies and transverse momenta. We find qualitative agreement with the predictions from the statistical model of hadronization for the √ s N N dependence and a mild dependence on the transverse momentum.

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“…The herein proposed bottom-up scenario of quarkonia formation solely accommodates the properties of vector cc and bb states in the holographic bulk vector field A. This is in contrast to microscopic studies, e.g., in [3,5,[63][64][65], where the heavy-quark interaction with constituents of the ambient medium was dealt with in detail. Primordial contributions, early off-equilibrium yields as well as the corresponding feedings were also not accounted for.…”

Section: Discussionmentioning

confidence: 96%

Quarkonia Formation in a Holographic Gravity–Dilaton Background Describing QCD Thermodynamics

Zöllner

Kämpfer

2021

Particles

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A holographic model of probe quarkonia is presented, where the dynamical gravity–dilaton background was adjusted to the thermodynamics of 2 + 1 flavor QCD with physical quark masses. The quarkonia action was modified to account for the systematic study of the heavy-quark mass dependence. We focused on the J/ψ and Υ spectral functions and related our model to heavy quarkonia formation as a special aspect of hadron phenomenology in heavy-ion collisions at LHC.

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Extraction of the heavy-quark potential from bottomonium observables in heavy-ion collisions

Cited by 40 publications

References 69 publications

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Improved Gauss law model and in-medium heavy quarkonium at finite density and velocity

Quarkonia Formation in a Holographic Gravity–Dilaton Background Describing QCD Thermodynamics

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