Dynamical heavy-quark recombination and the non-photonic single electron puzzle at RHIC

Abstract

We show that the single, non-photonic electron nuclear modification factor $R_{AA}^e$ is affected by the thermal enhancement of the heavy-baryon to heavy-meson ratio in relativistic heavy-ion collisions with respect to proton-proton collisions. We make use of the dynamical quark recombination model to compute such ratio and show that this produces a sizable suppression factor for $R_{AA}^e$ at intermediate transverse momenta. We argue that such suppression factor needs to be considered, in addition to the energy loss contribution, in calculations of $R_{AA}^e$

8 pages, 5 figures

References in corpus (13)

• Erratum: Transverse momentum and centrality dependence of high-\pt\ non-photonic electron suppression in Au+Au collisions at \sqrtsNN\ = 200 GeV
• Elastic, Inelastic, and Path Length Fluctuations in Jet Tomography
• Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
• Parton transport and hadronization from the dynamical quasiparticle point of view
• Energy dependence of charged pion, proton and anti-proton transverse momentum spectra for Au+Au collisions at \sqrt{s_NN} = 62.4 and 200 GeV
• Collisional Energy Loss in a Finite Size QCD Matter
• Radiative energy loss in a finite dynamical QCD medium
• Radiative heavy quark energy loss in a dynamical QCD medium
• Suppression of Non-photonic Electrons from Enhancement of Charm Baryons in Heavy Ion Collisions
• Resonance Recombination Model and Quark Distribution Functions in the Quark-Gluon Plasma
• Consequences of a Lambda_c/D enhancement effect on the non-photonic electron nuclear modification factor in central heavy ion collisions at RHIC energy
• Dynamical quark recombination in ultrarelativistic heavy-ion collisions and the proton to pion ratio
• Nuclear modification factor of non-photonic electrons in heavy-ion collisions and the heavy-flavor baryon-to-meson ratio

Cited by in corpus (6)

• Propagation of heavy baryons in heavy-ion collisions
• Diffusion of ${\Lambda }_c$ in hot hadronic medium and its impact on ${\Lambda }_c/D$ ratio
• Strong color fields and heavy flavor production
• Strange Baryon to Meson Ratio
• Dynamical transition between two mesons and a tetraquark
• Some aspects on four quarks recombination