Astrophysical Implications of the Induced Neutrino Magnetic Moment from Large Extra Dimensions

Details Astrophysical Implications of the Induced Neutrino Magnetic Moment from Large Extra Dimensions Astrophysical Implications of the Induced Neutrino Magnetic Moment from Large Extra Dimensions

1999-09-29

arxiv.org/abs/hep-ph/9909558v2

Phys.Lett. B470 (1999) 157-162

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 3 figures, figure added, references added

Scientific paper

10.1016/S0370-2693(99)01282-4

Theories involving extra dimensions, a low (TeV) string scale and bulk singlet neutrinos will produce an effective neutrino magnetic moment which may be large (< 10^{-11} mu_B). The effective magnetic moment increases with neutrino energy, and therefore high energy reactions are most useful for limiting the allowed number of extra dimensions. We examine constraints from both neutrino-electron scattering and also astrophysical environments. We find that supernova energy loss considerations require a number of extra dimensions, n > 1, for an electron neutrino-bulk neutrino Yukawa coupling of order 1.

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