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Neutrino emission from compact stars and inhomogeneous color superconductivity

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arxiv hep-ph/0607341 v2 pith:XCFVUA47 submitted 2006-07-31 hep-ph

Neutrino emission from compact stars and inhomogeneous color superconductivity

classification hep-ph
keywords colorloffneutrinostatecompactemissivityheatquark
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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  1. Neutrino absorption in two-flavor color-superconducting quark matter

    nucl-th 2025-09 conditional novelty 7.0

    In 2SC quark matter, neutrino absorption is dominated by strange-quark capture at low temperature, and a degenerate neutrino gas at electron lepton fraction 0.1 has a mean free path of meters or less.