arXiv subjects

E. N. Narynskaya

Publications and source records attributed to E. N. Narynskaya.

7 recordsLinked to original sources

arXiv2010

Neutrino magnetic moment in a magnetized plasma

The contribution of a magnetized plasma to the neutrino magnetic moment is calculated. It is shown that only part of the additional neutrino energy in magnetized plasma connecting with its spin and magnetic field strength defines the neutrino magnetic moment. It is found that the presence of magnetized plasma does not lead to the considerable increase of the neutrino magnetic moment in contrast to the results presented in literature previously.

hep-ph↗

arXiv2008

Neutrino dispersion in magnetized plasma

The neutrino dispersion in the charge symmetric magnetized plasma is investigated. We have studied the plasma contribution into the additional energy of neutrino and obtained the simple expression for it. We consider in detail the neutrino self-energy under physical conditions of weak field, moderate field and strong field limits. It is shown that our result for neutrino dispersion in moderate magnetic field differ substantially from the previous one in the literature.

hep-ph↗

arXiv2008

Fermion dispersion in axion medium

The interaction of a fermion with the dense axion medium is investigated for the purpose of finding an axion medium effect on the fermion dispersion. It is shown that axion medium influence on the fermion dispersion under astrophysical conditions is negligible small if the correct Lagrangian of the axion-fermion interaction is used.

hep-ph↗

arXiv2005

Field-induced interaction of a pseudoscalar particle with photon in a magnetized $e^-e^+$ plasma

The effective interaction of a pseudoscalar particle with photon in plasma with the presence of a constant uniform magnetic field is investigated. It is shown that under some physical conditions the effective coupling between pseudoscalar particle and photon does not depend on medium parameters and particles momentum. The probability of the familon decay into photon pair in a strongly magnetized degenerate ultrarelativistic plasma is calculated.

hep-ph↗

arXiv2002

Neutrino-electron processes in a dense magnetized plasma

The neutrino-electron scattering in a dense degenerate magnetized plasma under the conditions $μ^2 > 2eB \gg μE$ is investigated. The volume density of the neutrino energy and momentum losses due to this process are calculated. The results we have obtained demonstrate that plasma in the presence of an external magnetic field is more transparent for neutrino than non-magnetized plasma. It is shown that neutrino scattering under conditions considered does not lead to the neutrino force acting on plasma.

hep-ph↗

arXiv2001

Familon emission by dense magnetized plasma

Emission of a familon caused by the processes $e^- \to e^- + ϕ$, $ e^- \to μ^- + ϕ$ in dense magnetized plasma is investigated in the model in which a familon have both direct and no direct coupling to leptons via plasmon. The process probabilities and the integral familon action on plasma are calculated. It is shown that the $ P$ odd interference phenomenon in the process $e^- \to μ^- + ϕ$ leads to the familon force acting on plasma along the magnetic field.

hep-ph↗

arXiv2000

Neutrino-electron processes in a dense maqnetized plasma

The neutrino-electron processes in a dense strongly degenerate magnetized plasma are analyzed in the framework of the Standard Model. The total probability and the mean values of the neutrino energy and momentum losses are calculated. It is shown that neutrino scattering on the excited electrons with Landau level number conservation dominates under the conditions "mu^2 > eB >> mu T" but does not give a contribution into the neutrino force acting on plasma along the magnetic field.

hep-ph↗