Phys. Rev. D 74, 074005 (2006) - Neutrino emission from compact stars and inhomogeneous color superconductivity

Neutrino emission from compact stars and inhomogeneous color superconductivity

Roberto Anglani, Giuseppe Nardulli, Marco Ruggieri, and Massimo Mannarelli

Phys. Rev. D 74, 074005 – Published 11 October 2006

Abstract

We discuss specific heat and neutrino emissivity due to direct Urca processes for quark matter in the color superconductive Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of quantum chromodynamics. We assume that the three light quarks $u$ , $d$ , $s$ are in a color and electrically neutral state and interact by a four-fermion Nambu–Jona-Lasinio coupling. We study a LOFF state characterized by a single plane wave for each pairing. From the evaluation of neutrino emissivity and fermionic specific heat, the cooling rate of simplified models of compact stars with a quark core in the LOFF state is estimated.

Received 1 August 2006

DOI:https://doi.org/10.1103/PhysRevD.74.074005

©2006 American Physical Society

Authors & Affiliations

Roberto Anglani^*, Giuseppe Nardulli^†, and Marco Ruggieri^‡

Università di Bari, I-70126 Bari, Italia
I.N.F.N., Sezione di Bari, I-70126 Bari, Italia

Massimo Mannarelli^§

Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

^*Electronic address: roberto.anglani@ba.infn.it
^†Electronic address: giuseppe.nardulli@ba.infn.it
^‡Electronic address: marco.ruggieri@ba.infn.it
^§Electronic address: massimo@lns.mit.edu

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Issue

Vol. 74, Iss. 7 — 1 October 2006

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