Fireball tomography from bottomonia elliptic flow in relativistic heavy-ion collisions

Bhaduri, Partha Pratim; Alqahtani, Mubarak; Borghini, Nicolas; Jaiswal, Amaresh; Strickland, Michael

doi:10.1140/epjc/s10052-021-09383-3

Cited by 11 publications

(9 citation statements)

References 54 publications

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“…A similar trend has also been predicted earlier by an adiabatic approximation based model in Ref. [55]. According to Ref.…”

Section: Resultssupporting

confidence: 90%

“…Since we do not include an explicit time-dependent noise contribution in the potential, the resulting wave-functions correspond to the averaged wave-function (thermal expectation value) [33]. 1 This approximation allows us to straightforwardly go beyond previous phenomenological works which made use of the adiabatic approximation instead of real-time solutions [22,[47][48][49][50][51][52][53][54][55]. In a previous paper [56], we made a preliminary investigation of the effects of relaxing the adiabatic approximation, finding that there were potentially important effects on the survival probability of the states.…”

Section: Introductionmentioning

confidence: 99%

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Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Islam,

Strickland

2020

Preprint

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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 R AA as a function of N part and p T collected at √ s NN = 5.02 TeV. In the case of v 2 for the various states, we find that the path-length dependence of Υ(1s) suppression results in quite small v 2 for Υ(1s). Our prediction for the integrated elliptic flow for Υ(1s) in the 10−90% centrality class, which now includes an estimate on the systematic error, is v 2 [Υ(1s)] = 0.0026 ± 0.0007 ± 0.0005 0.001 . 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 v 2 [Υ(2s)] and v 2 [Υ(3s)] as a function of centrality and transverse momentum.

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“…A similar trend has also been predicted earlier by an adiabatic approximation based model in Ref. [55]. According to Ref.…”

Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Islam,

Strickland

2020

Preprint

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“…Even prior to this manuscript the results of this tuning have been used, e.g. to study the nuclear modification factor R A A and elliptic flow v 2 of bottomonium states in 5.02 TeV Pb-Pb collisions [54,55].…”

Section: Introductionmentioning

confidence: 99%

Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics

Alqahtani

Strickland

2021

Eur. Phys. J. C

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We compare predictions of 3+1D quasiparticle anisotropic hydrodynamics (aHydroQP) for a large set of bulk observables with experimental data collected in 5.02 TeV Pb–Pb collisions. We make predictions for identified hadron spectra, identified hadron average transverse momentum, charged particle multiplicity as a function of pseudorapidity, the kaon-to-pion ($$K/\pi $$ K / π ) and proton-to-pion ($$p/\pi $$ p / π ) ratios, identified particle and charged particle elliptic flow, and HBT radii. We compare to data collected by the ALICE collaboration in 5.02 TeV Pb–Pb collisions. We find that, based on available data, these bulk observables are well described by aHydroQP with an assumed initial central temperature of $$T_0=630$$ T 0 = 630 MeV at $$\tau _0 = 0.25$$ τ 0 = 0.25 fm/c and a constant specific shear viscosity of $$\eta /s=0.159$$ η / s = 0.159 , which corresponds to a peak specific bulk viscosity of $$\zeta /s = 0.048$$ ζ / s = 0.048 . In particular, we find that the momentum dependence of the kaon-to-pion ($$K/\pi $$ K / π ) and proton-to-pion ($$p/\pi $$ p / π ) ratios reported recently by the ALICE collaboration are extremely well described by aHydroQP in the 0–5% centrality class.

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“…The imaginary part also leads to quarkonium dissociation, which turns out to happen at a temperature lower than the screening one [3][4][5][6], i.e., at least in weak coupling, quarkonium has already dissociated when reaching the screening temperature. Since then, many phenomenological studies solving the Schrödinger equation with a complex potential have appeared [7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Bottomonium suppression in an open quantum system using the quantum trajectories method

Brambilla¹,

Escobedo²,

Strickland³

et al. 2020

Preprint

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We solve the Lindblad equation describing the Brownian motion of a Coulombic heavy quark-antiquark pair in a strongly coupled quark-gluon plasma using the highly efficient Monte Carlo wave-function method. The Lindblad equation has been derived in the framework of pNRQCD and fully accounts for the quantum and non-Abelian nature of the system. The hydrodynamics of the plasma is realistically implemented through a 3+1D dissipative hydrodynamics code. We compute the bottomonium nuclear modification factor and compare with the most recent LHC data. The computation does not rely on any free parameter, as it depends on two transport coefficients that have been evaluated independently in lattice QCD. Our final results, which include late-time feed down of excited states, agree well with the available data from LHC 5.02 TeV PbPb collisions.

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Fireball tomography from bottomonia elliptic flow in relativistic heavy-ion collisions

Abstract: We calculate the elliptic flow of bottomonia produced in Pb$$\,+\,$$ + Pb collisions at $$\sqrt{s_{\mathrm{NN}}}=5.02$$ s NN = 5.02 TeV. We consider temperature-depende… Show more

Cited by 11 publications

References 54 publications

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics

Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics

Bottomonium suppression in an open quantum system using the quantum trajectories method

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