Neutrino emissivity of anisotropic neutron superfluids

Abstract

We examine the influence of the anisotropy of the superfluid energy gap and residual Fermi-liquid interactions in the triplet-correlated neutron liquid onto neutrino energy losses through neutral weak currents. The neutrino-pair emission caused by the pair breaking and formation processes and by the spin-wave decays is considered for the case of the ${}^3{P}_2$ pairing in the state with $m_j=0$. The simple analytical formulae are obtained. A comparison with the previous results of the average-angle approach shows that the gap anisotropy leads to quenching of the neutrino emissivity caused by the pair recombination processes on about 15% and to substantial suppression of the spin-wave decays. Residual particle-hole interactions increase the energy losses in both the channels on about 5%.

arXiv comment22 pages, 6 figures

References in corpus (21)

• Neutrino Emission from Neutron Stars
• Minimal Cooling of Neutron Stars: A New Paradigm
• Neutrino Emission from Cooper Pairs and Minimal Cooling of Neutron Stars
• Polarization contributions to the spin-dependence of the effective interaction in neutron matter
• Vector current conservation and neutrino emission from singlet-paired baryons in neutron stars
• Neutrino emission due to Cooper-pair recombination in neutron stars revisited
• Neutrino emission from triplet pairing of neutrons in neutron stars
• ${}^3{P}_2$-${}^3{F}_2$ Pairing in Dense Neutron Matter: The Spectrum of Solutions
• Neutrino emission due to Cooper pairing of nucleons in cooling neutron stars
• Superfluid Response and the Neutrino Emissivity of Neutron Matter
• Collective modes of the order parameter in a triplet superfluid neutron liquid
• BCS approximation to the effective vector vertex of superfluid fermions
• Superfluid Phase Transitions in Dense Neutron Matter
• Neutrino emission from spin waves in neutron spin-triplet superfluid
• Zero sound in triplet-correlated superfluid neutron matter
• Neutrino emissivity of ${}^3{P}_2$-${}^3{F}_2$ superfluid cores in neutron stars
• Superfluid phases of triplet pairing and neutrino emission from neutron stars
• Superfluid response and the neutrino emissivity of baryon matter: Fermi-liquid effects
• New eigen-mode of spin oscillations in the triplet superfluid condensate in neutron stars
• Collective neutrino-pair emission due to Cooper pairing of protons in superconducting neutron stars
• Multiscaling Anderson localization of cosmic electromagnetic fields

Cited by in corpus (21)

• Neutron Stars and the Nuclear Equation of State
• Superfluidity in nuclear systems and neutron stars
• Superfluid phases of triplet pairing and rapid cooling of the neutron star in Cassiopeia A
• Magnetic Properties of Quantized Vortices in Neutron ${}^3{P}_2$ Superfluids in Neutron Stars
• ${}^3{P}_2$ Superfluids Are Topological
• Reexamining Ginzburg-Landau theory for neutron ${}^3{P}_2$ superfluidity in neutron stars
• Phase structure of neutron ${}^3{P}_2$ superfluids in strong magnetic fields in neutron stars
• Collective excitations of a quantized vortex in ${}^3{P}_2$ superfluids in neutron stars
• Microscopic description of axisymmetric vortices in ${}^3{P}_2$ superfluids
• Domain walls in neutron ${}^3{P}_2$ superfluids in neutron stars
• Critical endpoint and universality class of neutron ${}^3{P}_2$ superfluids in neutron stars
• Coexistence phase of ${}^1{S}_0$ and ${}^3{P}_2$ superfluids in neutron stars
• Spin-polarized phases of ${}^3{P}_2$ superfluids in neutron stars
• Topological defects at the boundary of neutron ${}^3{P}_2$ superfluids in neutron stars
• Core structures of vortices in Ginzburg-Landau theory for neutron ${}^3{P}_2$ superfluids
• Proximity effects of vortices in neutron ${}^3{P}_2$ superfluids in neutron stars: Vortex core transitions and covalent bonding of vortex molecules
• Hybrid cooling of the Cassiopeia A neutron star
• Neutrino emission from Cooper pairs at finite temperatures
• Strongly interacting matter in extreme magnetic fields
• Symmetry classification of uniform states in spin-2 Bose-Einstein condensates and neutron ${}^3{P}_2$ superfluids
• Emergent chirality and superfluidity of parity-doubled baryons in neutron stars