Nuclear Theory Seminars at Texas A&M: Spring 2007

Location: Cyclotron Building (434), Seminar Room

Friday, May 18, 4:00pm

Dr. Lorenzo Ravagli, Texas A&M University
Quark Coalescence based on a Transport Equation

Abstract:

In recent years, quark coalescence has given new insights in the understanding of the hadronization mechanism in Heavy Ion Collisions in the intermediate $p_T$ regime. We present an interpretation of this phenomenon based on a transport equation: in our approach, limited for the moment to mesonic states, recombination of quarks is achieved by considering resonant $q,\bar{q}\leftrightarrow M$ processes as the dominant interaction channels. The finite width, $\Gamma$, of the meson ensures energy conservation in the process and leads to a natural equilibration time $\tau\sim1/\Gamma$. We present results for $p_T$ spectra of the $\phi$-meson and discuss the scaling properties of the elliptic flow, $v_2$, for several particles.

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