Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-04-16
J.Exp.Theor.Phys. 88 (1999) 1-5; Zh.Eksp.Teor.Fiz. 115 (1999) 3-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
RevTex, no figures, 13 pages, Revised version of the paper published in J. Exp. Theor. Phys. {\bf 88}, 1 (1999)
Scientific paper
10.1134/1.558755
The polarization operator of an axion in a degenerate gas of electrons occupying the ground-state Landau level in a superstrong magnetic field $H\gg H_0=m_e^2c^3/e\hbar =4.41\cdot 10^{13}$ G is investigated in a model with a tree-level axion-electron coupling. It is shown that a dynamic axion mass, which can fall within the allowed range of values $(10^{-5} eV \lesssim m_a\lesssim 10^{-2} eV)$, is generated under the conditions of strongly magnetized neutron stars. As a result, the dispersion relation for axions is appreciably different from that in a vacuum.
Borisov Alexey V.
Sizin P. E.
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