Neutrino orbital angular momentum in a plasma vortex

TL;DR

This paper demonstrates that electron-neutrino beams can carry orbital angular momentum states in a plasma vortex, with plasma vorticity transferring to neutrinos, impacting astrophysical neutrino source understanding.

Contribution

It introduces the concept of neutrino orbital angular momentum states and explores their coupling in plasma vortices, a novel aspect in neutrino physics.

Findings

Neutrino beams can be decomposed into OAM states in plasma.

Plasma vorticity can transfer angular momentum to neutrinos.

Potential for observing neutrino OAM states in astrophysics.

Abstract

It is shown that an electron-neutrino beam, propagating in a background plasma, can be decomposed into orbital momentum (OAM) states, similar to the OAM photon states. Coupling between different OAM neutrino states, in the presence of a plasma vortex, is considered. We show that plasma vorticity can be transfered to the neutrino beam, which is relevant to the understanding of the neutrino sources in astrophysics. Observation of neutrino OAM states could eventually become possible.