Are deviation from bi-maximal mixing and non-zero Ue3 related to non-degeneracy of heavy Majorana neutrinos?

Sin Kyu Kang; C. S. Kim

doi:10.1016/j.physletb.2006.02.022

Are deviation from bi-maximal mixing and non-zero U_e3 related to non-degeneracy of heavy Majorana neutrinos?

Sin Kyu Kang, C. S. Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We propose a scenario that the mass splitting between the first generation of the heavy Majorana neutrino and the other two generations of degenerate heavy neutrinos in the seesaw framework is responsible for the deviation of the solar mixing angle from the maximal mixing, while keeping the maximal mixing between the tau and muon neutrinos as it is. On top of the scenario, we show that the tiny breaking of the degeneracy of the two heavy Majorana neutrinos leads to the non-zero small mixing angle Ue3 in the PMNS matrix and the little deviation of the atmospheric neutrino mixing angle from the maximal mixing.

Original language	English
Pages (from-to)	520-525
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	634
Issue number	5-6
DOIs	https://doi.org/10.1016/j.physletb.2006.02.022
Publication status	Published - 2006 Mar 23

Bibliographical note

Funding Information:
S.K.K. was supported in part by BK21 program of the Ministry of Education in Korea and in part by KOSEF Grant No. R01-2003-000-10229-0. C.S.K. was supported in part by CHEP-SRC Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030, and in part by JSPS.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2006.02.022

Cite this

@article{26f04b95dd644d0da226f4eb29ddb425,

title = "Are deviation from bi-maximal mixing and non-zero Ue3 related to non-degeneracy of heavy Majorana neutrinos?",

abstract = "We propose a scenario that the mass splitting between the first generation of the heavy Majorana neutrino and the other two generations of degenerate heavy neutrinos in the seesaw framework is responsible for the deviation of the solar mixing angle from the maximal mixing, while keeping the maximal mixing between the tau and muon neutrinos as it is. On top of the scenario, we show that the tiny breaking of the degeneracy of the two heavy Majorana neutrinos leads to the non-zero small mixing angle Ue3 in the PMNS matrix and the little deviation of the atmospheric neutrino mixing angle from the maximal mixing.",

author = "Kang, {Sin Kyu} and Kim, {C. S.}",

note = "Funding Information: S.K.K. was supported in part by BK21 program of the Ministry of Education in Korea and in part by KOSEF Grant No. R01-2003-000-10229-0. C.S.K. was supported in part by CHEP-SRC Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030, and in part by JSPS.",

year = "2006",

month = mar,

day = "23",

doi = "10.1016/j.physletb.2006.02.022",

language = "English",

volume = "634",

pages = "520--525",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",