Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-12-19
Phys.Rev. D73 (2006) 113003
Physics
High Energy Physics
High Energy Physics - Phenomenology
40 pages, 9 figures. Minor changes, matches version in PRD
Scientific paper
10.1103/PhysRevD.73.113003
We analyze the constraints on neutrino mass spectra with extra sterile neutrinos as implied by the LSND experiment. The various mass related observables in neutrinoless double beta decay, tritium beta decay and cosmology are discussed. Both neutrino oscillation results as well as recent cosmological neutrino mass bounds are taken into account. We find that some of the allowed mass patterns are severely restricted by the current constraints, in particular by the cosmological constraints on the total sum of neutrino masses and by the non-maximality of the solar neutrino mixing angle. Furthermore, we estimate the form of the four neutrino mass matrices and also comment on the situation in scenarios with two additional sterile neutrinos.
Goswami Srubabati
Rodejohann Werner
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