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arXiv · 1803.03824

Extraction of Heavy-Flavor Transport Coefficients in QCD Matter

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

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.

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R. Rapp, P. B. Gossiaux, A. Andronic, R. Averbeck, S. Masciocchi, A. Beraudo, E. Bratkovskaya, P. Braun-Munzinger, S. Cao, A. Dainese, S. K. Das, M. Djordjevic, V. Greco, M. He, H. van Hees, G. Inghirami, O. Kaczmarek, Y. -J. Lee, J. Liao, S. Y. F. Liu, G. Moore, M. Nahrgang, J. Pawlowski, P. Petreczky, S. Plumari, F. Prino, S. Shi, T. Song, J. Stachel, I. Vitev, X. -N. Wang. 2018-03-10. Extraction of Heavy-Flavor Transport Coefficients in QCD Matter. https://doi.org/10.1016/j.nuclphysa.2018.09.002

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