Millicharged neutrino with anomalous magnetic moment in rotating magnetized matter

TL;DR

This paper presents exact solutions for neutrinos with electromagnetic properties in extreme astrophysical environments, predicting novel phenomena like neutrino electromagnetic radiation and star angular velocity shifts, with implications for supernovae and pulsar glitches.

Contribution

It introduces new exact solutions to the modified Dirac equation for neutrinos in magnetized rotating matter and predicts novel astrophysical phenomena and mechanisms affecting star dynamics.

Findings

Prediction of neutrino spatial separation in magnetized rotating stars

Proposal of a new neutrino electromagnetic radiation called LCν

Introduction of the Neutrino Star Turning mechanism affecting star rotation

Abstract

New exact solutions of the modified Dirac equation describing a neutrino with nontrivial electromagnetic properties in extreme background conditions are obtained. Within the quasi-classical treatment the effective Lorentz force that describes the neutrino propagation in the magnetized rotating matter is introduced. We predict the effect of the spatial separation of different types of relativistic neutrinos and antineutrinos (different in flavors and energies) by the magnetized rotating matter of a star. Low energy neutrinos can be even trapped inside the star. We also predict two new phenomena: a new type of the neutrino electromagnetic radiation (termed "Light of (milli)Charged Neutrino", $LC\nu$) and a new mechanism of the star angular velocity shift due to neutrinos escaping the star (termed "Neutrino Star Turning" mechanism, $\nu S T$). The possible impact of the $\nu S T$ mechanism on a supernova explosion yields a new astrophysical limit on the neutrino millicharge $q_{\nu}<1.3\times10^{-19}e_0$. In addition, the $\nu S T$ mechanism can be also used to explain the origin of pulsar "anti-glitches" and ordinary glitches as well.