dr Pok Man Lo (IFT)

Repulsive interactions and their effects on the thermodynamics II

Continuation: In this talk we compare two approaches in modeling repulsive interactions among hadrons: the excluded-volume approximation and the S-matrix formalism. The latter provides a consistent treatment of broad resonances based on empirical scattering phase shifts. We shall apply these techniques to study the thermodynamics of the (πN∆) system, with a particular focus on the fluctuation of baryon charge in the thermal medium. Limitations of the methods in describing dense hadronic matter would be briefly discussed.