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Can Parity Violation in Neutrino Transport Lead to Pulsar Kicks?

1 Pith paper cite this work, alongside 81 external citations. Polarity classification is still indexing.

1 Pith paper citing it
81 external citations · Pith
abstract

In magnetized proto-neutron stars, neutrino cross sections depend asymmetrically on the neutrino momenta due to parity violation. However, these asymmetric opacities do not induce any asymmetric flux in the bulk interior of the star where neutrinos are nearly in thermal equilibrium. Consequently, parity violation in neutrino absorption and scattering can only give rise to asymmetric neutrino flux above the neutrino-matter decoupling layer. The kick velocity is substantially reduced from previous estimates, requiring a dipole field $B \sim 10^{16}$~G to get $v_{kick}$ of order a few hundred km~s$^{-1}$.

fields

astro-ph.HE 1

years

2026 1

verdicts

ACCEPT 1

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  • Understanding the Neutron Star Population with the SKAO Telescopes astro-ph.HE · 2026-07-03 · accept · none · ref 37 · internal anchor

    SKAO AA* and AA4 surveys are projected to discover thousands of ordinary pulsars and ~800–1000 MSPs, enabling population synthesis, mass measurements and tests of gravity and emission physics.