Solar neutrinos, helicity effects and new affine gravity with torsion II

Abstract

The cross section for neutrino helicity spin-flip obtained from a new f(R, T) model of gravitation with dynamic torsion field introduced by one of the authors in [1], is phenomenologically analyzed. To this end, due to the logarithmical energy dependence of the cross section, the relation with the axion decay constant fa (Peccei-Quinn parameter) is used. Consequently the link with the phenomenological energy/mass window is found from the astrophysical and high energy viewpoints. The highest helicity spin-flip cross-sectional values presented in this work coincide with a recent estimation on the axion mass computed in [2] in the framework of finite temperature extended lattice QCD and under cosmological considerations.

To be published in the Journal of High Energy Astrophysics. 8 pages, 10 figures, grammar and typos corrected, references actualized. Final version

References in corpus (8)

• Theory of Core-Collapse Supernovae
• A possible symmetry of the $\nu$MSM
• Peccei--Quinn mechanism in gravity and the nature of the Barbero--Immirzi parameter
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• Torsion in Extra Dimensions and One-Loop Observables