Strange stars (ReSS) calculated from a realistic equation of state (EOS), that incorporate chiral symmetry restoration as well as deconfinement at high density [Phys. Lett. B 438 (1998) 123; Phys. Lett. B 447 (1999) 352, Addendum; Phys. Lett. B 467 (1999) 303, Erratum; Indian J. Phys. B 73 (1999) 377] show compact objects in the mass radius curve. We compare our calculations of incompressibility for this EOS with that of nuclear matter. One of the nuclear matter EOS has a continuous transition to ud-matter at about five times normal density. Another nuclear matter EOS incorporates density dependent coupling constants. From a look at the consequent velocity of sound, it is found that the transition to ud-matter seems necessary. © 2004 Elsevier B.V. All rights reserved.

Monika Sinha

Department of Physics

IIT Jodhpur

M. Bagchi

J. Dey

M. Dey

S. Ray

S. Bhowmick

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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Incompressibility of strange matter

Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN	03702693