2born (2born) wrote,

Осцилляции нейтрино в веществе

The Mikheyev-Smirnov-Wolfenstein (MSW) Effect: https://arxiv.org/abs/1901.11473

A Y Smirnov

Developments of main notions and concepts behind the MSW effect (1978 - 1985) are described. They include (i) neutrino refraction, matter potential, and evolution equation in matter, (ii) mixing in matter, resonance and level crossing; (iii) adiabaticity condition and adiabatic propagation in matter with varying density. They are in the basis of the resonance enhancement of oscillations in matter with constant (nearly constant) density, and the adiabatic flavor conversion in matter with slowly changing density. The former is realized in matter of the Earth and can be used to establish neutrino mass hierarchy. The latter provides solution to the solar neutrino problem and play the key role in transformations of the supernova neutrinos.

Talk given at the International conference on History of the Neutrino, September 5 - 7, 2018, Paris, France. LaTeX, 17 pages, 7 figures

До кучи: Neutrino oscillation probabilities through the looking glass: https://arxiv.org/abs/1902.00517

In this paper we review different expansions for neutrino oscillation probabilities in matter in the context of long-baseline neutrino experiments. We examine the accuracy and computational efficiency of different exact and approximate expressions. We find that many of the expressions used in the literature are not precise enough for the next generation of long-baseline experiments, but several of them are while maintaining comparable simplicity. The results of this paper can be used as guidance to both phenomenologists and experimentalists when implementing the various oscillation expressions into their analysis tools.
32 pages, 6 figures
Tags: Мегаучебник или Что я читал и похвалил, разгребая arXiv'ы

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