High Density Strange Star Matter and Observed Parity Doubling of Excited Hadrons

Details High Density Strange Star Matter and Observed Parity Doubling of Excited Hadrons High Density Strange Star Matter and Observed Parity Doubling of Excited Hadrons

2006-10-26

arxiv.org/abs/hep-ph/0610349v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

Parity doubling is observed in hadron states around 1.5 GeV - and the estimated energy density is found to be high. When a large excitation energy is available and the pions decouple from the quarks, the QCD interaction is still not perturbative. And signature of such a system can exist in the form of small ratio of the shear viscosity to entropy density. This is true for an equation of state which is applicable to the surface of strange star. We indicate the correspondence of parity doubling with the apparently disconnected model calculation of compactness of some pulsars.

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