Plasma influence on the neutrino — electron processes in a strong magnetic field

Abstract

An influence of the magnetized electron -positron plasma on the absorption and loss of the energy and momentum in a process of neutrino propagation is investigated. A total contribution of all crossed processes, ν → νe − e + , νe − → νe − , νe + → νe + , νe − e + → ν, is found for the first time, which appears not to depend on the chemical potential of electron-positron gas. Relatively simple expressions for the probability and mean losses of the neutrino energy and momentum are obtained, which are suitable for a quantitative analysis.

Weak turbulence in two-dimensional magnetohydrodynamics

“…An explicit comparison will be made between the weak turbulence regimes in 2D and in 3D; the latter was analyzed rigorously in [29]. The weak wave turbulence approach is widely familiar to the plasma physics community [30][31][32][33][34][35][36][37][38][39][40][41][42]. It is a statistical description of a large ensemble of weakly interacting dispersive waves.…”

Collective modes in neutrino “beam” electron-positron plasma interactions

“…These approximations serve as a working hypothesis for our study of the collective modes and their (in)stability in a supernova environment in Section 3 . Eventually, however, the analysis of the complete coupled set of equations (15)- (19) and (23) should be performed, considering the presence or generation of strong magnetic fields during supernova explosions or other astrophysical processes [15,16,17] (and references therein).…”