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Title: Recent progress on in-medium properties of heavy mesons from finite-temperature EFTs

Journal Article · · Frontiers in Physics
 [1];  [2];  [3];  [4]
  1. University of Barcelona (Spain). Institut de Ciències del Cosmos (ICCUB); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Institut de Ciències del Cosmos (ICCUB)
  3. Univ. Autonoma de Barcelona (Spain). Institute of Space Sciences (ICE, CSIC); Institut d’Estudis Espacials de Catalunya (IEEC), Barcelona (Spain); Frankfurt Inst. for Advanced Studies (FIAS), Frankfurt (Germany)
  4. University of Barcelona (Spain). Institut de Ciències del Cosmos (ICCUB)

Mesons with heavy flavor content are an exceptional probe of the hot QCD medium produced in heavy-ion collisions. In the past few years, significant progress has been made toward describing the modification of the properties of heavy mesons in the hadronic phase at finite temperature. Ground-state and excited-state thermal spectral properties can be computed within a self-consistent many-body approach that employs appropriate hadron-hadron effective interactions, providing a unique opportunity to confront hadronic Effective Field Theory predictions with recent and forthcoming lattice QCD simulations and experimental data. In this article, we revisit the application of the imaginary-time formalism to extend the calculation of unitarized scattering amplitudes from the vacuum to finite temperature. These methods allow us to obtain the ground-state thermal spectral functions. The thermal properties of the excited states that are dynamically generated within the molecular picture are also directly accessible. We present here the results of this approach for the open-charm and open-bottom sectors. We also analyze how the heavy-flavor transport properties, which are strongly correlated to experimental observables in heavy-ion collisions, are modified in hot matter. In particular, transport coefficients can be computed using an off-shell kinetic theory that is fully consistent with the effective theory describing the scattering processes. The results of this procedure for both charm and bottom transport coefficients are briefly discussed.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
2007446
Report Number(s):
DOE/OR/23177-6598; JLAB-THY--23-3874
Journal Information:
Frontiers in Physics, Journal Name: Frontiers in Physics Vol. 11; ISSN 2296-424X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English

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