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Absorption of solar radiation by solar neutrinos

Authors:	G Duplančić P Minkowski J Trampetić

Institution:	(1) Theory Division, CERN, 1211 Geneva 23, Switzerland;(2) Theoretical Physics Division, Rudjer Bokovi Institute, Zagreb, Croatia;(3) Institute for Theoretical Physics, University of Bern, 3012 Bern, Switzerland;(4) Sektion Physik, Universität München, Theresienstr. 37, 80333 München, Germany

Abstract:	We calculate the absorption probability of photons radiated from the surface of the Sun by a left-handed neutrino with definite mass and a typical momentum for which we choose \|p₁\| = 0.2 MeV, producing a heavier right-handed antineutrino. Considering the two transitions $\nu_1 \to \nu_2$ and $\nu_2 \to \nu_3$ we obtain the two oscillation lengths L₁₂ = 4960.8 m, L₂₃ = 198.4 m, the two absorption probabilities P₁₂^abs. = 2.5 x 10^-67, P₂₃^abs. = 1.2 x 10^-58 and the two absorption ranges $R_{12}^{\mathrm {abs.}} = 4.47\times 10^4 R_{\odot} = 208.0$ au, $R_{23}^{\mathrm {abs.}} = 0.89\times 10^4 R_{\odot} = 41.4$ au, using a neutrino mass differences of $\sqrt{\vert\Delta m^2_{12}\vert} = 10$ meV, $\sqrt{\vert\Delta m^2_{23}\vert} = 50$ meV and associated transition dipole moments. We collect all necessary theoretical ingredients, i.e. neutrino mass and mixing scheme, induced electromagnetic transition dipole moments, quadratic charged lepton mass asymmetries and their interdependence.Received: 4 November 2003, Revised: 23 March 2004, Published online: 5 May 2004

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