Charged lepton correction to tribimaximal lepton mixing and its implications to neutrino phenomenology

Gollu, Srinu; Deepthi, K.N.; Mohanta, R.

doi:10.1142/S0217732313501319

Charged lepton correction to tribimaximal lepton mixing and its implications to neutrino phenomenology

Mar 14, 2013

13 pages

Published in:

Mod.Phys.Lett.A 28 (2013) 1350131

Published: 2013

e-Print:

1303.3393 [hep-ph]

DOI:

10.1142/S0217732313501319

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Abstract: (arXiv)

The recent results from Daya Bay and RENO reactor neutrino experiments have firmly established that the smallest reactor mixing angle

\theta_{13}

is non-vanishing at the

5 \sigma

level, with a relatively large value, i.e.,

\theta_{13}\approx 9^{\circ}

. Using the fact that the neutrino mixing matrix can be represented as

V_{\rm PMNS}=U_l^{\dagger} U_{\nu} P_\nu

, where

U_l

and

U_\nu

result from the diagonalization of the charged lepton and neutrino mass matrices and

P_\nu

is a diagonal matrix containing the Majorana phases and assuming the tri-bimaximal form for

U_\nu

, we investigate the possibility of accounting for the large reactor mixing angle due to the corrections of the charged lepton mixing matrix. The form of

U_{l}

is assumed to be that of CKM mixing matrix of the quark sector. We find that with this modification it is possible to accommodate the large observed reactor mixing angle

\theta_{13}

. We also study the implications of such corrections on the other phenomenological observables.

Note:

15 pages, 5 figures, minor modification in the text, added few more references, to appear in MPLA

14.60.Lm
14.60.Pq
Neutrino physics
lepton: mixing
neutrino: nuclear reactor
neutrino: mixing
neutrino: mass
Daya Bay
RENO

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