85 research outputs found
CP-odd weak basis invariants and texture zeros
We construct the CP-odd weak basis invariants from the neutrino mass matrix
in a weak basis in which the charged lepton mass matrix is diagonal and find
the necessary and sufficient conditions for CP conservation. We study the
interrelationships between different CP-odd weak basis invariants to examine
their implications for the Dirac and Majorana type CP violating phases for the
phenomenologically allowed Frampton-Glashow-Marfatia texture zero structures of
the neutrino mass matrix.Comment: 9 pages, three tables, Phys. Rev. D (to appear
Quark-lepton complementarity model based predictions for with neutrino mass hierarchy
After the successful investigation and confirmation of non zero
by various experiments, we are standing at a square where
we still encounter a number of issues, which are to be settled. In this paper,
we have extended our recent work towards a precise prediction of the
mixing angle, taking into account the neutrino mass
hierarchy. We parameterize the non-trivial correlation between quark (CKM) and
lepton (PMNS) mixing matrices in quark-lepton complementarity (QLC) model as
, where is a diagonal phase matrix.
Monte Carlo simulations are used to estimate the texture of and compare
the results with the standard Tri-Bi-Maximal (TBM) and Bi-Maximal(BM)
structures of neutrino mixing matrix. We have predicted the value of
for normal and inverted neutrino mass hierarchies. The
value of obtained for two cases are about away
from each other, implying the better precision can give us a strong hint for
the type of neutrino mass hierarchy.Comment: 3 pages, 3 figure
Model Independent Constraints on Non-electronic Flavors in the Solar Boron Neutrino Flux
We perform the most general model independent analysis of the latest 391-Day
Salt Phase SNO Data Set incorporating the Super-Kamiokande ES flux measurement
and obtain bounds on the antineutrino and sterile neutrino flux in the solar
B neutrino flux reaching the detectors on the earth. The muon/ tauon
antineutrino flux is found to be disallowed at 1.4 C.L. The sterile
flux is found to be non-zero at about 1.26 standard deviations.Comment: 8 pages and no figur
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