12-18 August 2012
US/Eastern timezone

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Nonperturbative Heavy-Flavor Diffusion and Hadronization in a Hydrodynamic Description of Heavy-Ion Collisions

16 Aug 2012, 16:00
2h
Regency 1/3 and Ambassador ()

Regency 1/3 and Ambassador

Poster Heavy flavor and quarkonium production Poster Session Reception

Speaker

Dr Min He (Cyclotron Institute, Texas A&M University)

Description

We compute open heavy-flavor (HF) transport in relativistic heavy-ion collisions by combining a strong-coupling treatment in both macro- and microscopic dynamics (hydro and nonperturbative diffusion interactions) [1]. The hydrodynamic bulk evolution is quantitatively constrained by bulk and multi-strange hadron spectra and elliptic flow [2]. In the Quark-Gluon Plasma (QGP) phase, heavy-quark diffusion coefficients are taken from a non-perturbative $T$-matrix approach. The latter leads to resonance formation close to Tc which is implemented as a hadronization (recombination) mechanism on a hydrodynamic hypersurface. In the hadronic phase, the diffusion of HF mesons is obtained from effective hadronic theory [3]. We compute observables at RHIC and LHC for both HF mesons and non-photonic electrons. In particular, we suggest the R_AA and v_2 of the D_s mesons as a unique observable due to the coupling of charm to the strangeness enhancement in AA collisions [4], which allows to quantitatively test key components of our approach, including recombination and hadronic diffusion effects. References: [1] M. He, R. J. Fries and R. Rapp, arXiv:1106.6006 [nucl-th]. [2] M. He, R. J. Fries and R. Rapp, Phys. Rev. C85, 044911 (2012). [3] M. He, R. J. Fries and R. Rapp, Phys. Lett. B701, 445 (2011). [4] M. He, R. J. Fries and R. Rapp, arXiv:1204.4442 [nucl-th].

Primary author

Dr Min He (Cyclotron Institute, Texas A&M University)

Co-authors

Prof. Rainer J. Fries (Cyclotron Institute, Texas A&M University) Prof. Ralf Rapp (Cyclotron Institute, Texas A&M University)

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