Assisted neutrino pair production in combined external fields

Abstract

Neutrino--antineutrino ($\nu \bar{\nu }$) pair production is one of the main processes responsible for the energy loss of stars. Apart from the collision of two ($\gamma \gamma \to \nu \bar{\nu }$) or three ($\gamma \gamma \gamma \to \nu \bar{\nu }$) real photons, pair creation from a photon and photon collisions in the presence of nuclear Coulomb fields or external magnetic fields have been considered previously. Here, we study a pair production of neutrino and antineutrino from a low-energy photon in the presence of a combined homogeneous magnetic field and the Coulomb field of a nucleus with charge number $Z$.

arXiv comment7 pages, 2 figures, minor improvements, matches published version

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Cited by in corpus (1)

• Enhanced active-sterile neutrino polarizability at the intensity frontier