Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-03-31
Phys.Rev. D62 (2000) 053009
Physics
High Energy Physics
High Energy Physics - Phenomenology
Revtex, 12 pages
Scientific paper
10.1103/PhysRevD.62.053009
We show that, for Majorana neutrinos propagating in a constant magnetic field, the flavour survival probabilities for left-handed neutrinos is the same as for right-handed neutrinos, i.e., $P^M (\nu_{\alpha L}\to\nu_{\alpha L}) = P^M (\nu_{\alpha R}\to\nu_{\alpha R})$, where $\alpha = e, \mu, \tau$, whereas in the Dirac case the corresponding probabilities $P^D (\nu_{\alpha L}\to\nu_{\alpha L})$ and $P^D (\bar\nu_{\alpha R}\to\bar\nu_{\alpha R})$ are in general different. This might lead to a novel way to search for the nature of neutrinos. We also discuss how this relation for Majorana neutrinos gets modified when the magnetic field is not constant. However, if matter effects become important the relation does not hold anymore.
Balaji K. R. S.
Grimus Walter
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