Extraction of heavy-flavor transport coefficients in QCD matter

Rapp, R. ; Gossiaux, P.B. ; Andronic, A. ; Averbeck, R. ; Masciocchi, S. ; Beraudo, A. ; Bratkovskaya, E. ; Braun-Munzinger, P. ; Cao, S. ; Dainese, A. ; Das, S.K. ; Djordjevic, M. ; Greco, V. ; He, M. ; Hees, H. van ; Inghirami, G. ; Kaczmarek, O. ; Lee, Y. J. ; Liao, J. ; Liu, S.Y.F. ; Moore, G. ; Nahrgang, M. ; Pawlowski, J. ; Petreczky, P. ; Plumari, S. ; Prino, F. ; Shi, S. ; Song, T. ; Stachel, J. ; Vitev, I. ; Wang, X. N.

We report on broadly based systematic investigations of the modeling components for open heavy-flavor diffusion and energy loss in strongly interacting matter in their application to heavy-flavor observables in high-energy heavy-ion collisions, conducted within an EMMI Rapid Reaction Task Force framework. Initial spectra including cold-nuclear-matter effects, a wide variety of space-time evolution models, heavy-flavor transport coefficients, and hadronization mechanisms are scrutinized in an effort to quantify pertinent uncertainties in the calculations of nuclear modification factors and elliptic flow of open heavy-flavor particles in nuclear collisions. We develop procedures for error assessments and criteria for common model components to improve quantitative estimates for the (low-momentum) heavy-flavor diffusion coefficient as a long-wavelength characteristic of QCD matter as a function of temperature, and for energy loss coefficients of high-momentum heavy-flavor particles.

Publication Date:
Sep 07 2018
Date Submitted:
Jun 28 2019
Nuclear Physics A
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 Record created 2019-06-28, last modified 2019-08-06

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