Change search
ReferencesLink to record
Permanent link

Direct link
A partial mu-tau symmetry and its prediction for leptonic CP violation
KTH, School of Engineering Sciences (SCI), Theoretical Physics. Institute of High Energy Physics, Chinese Academy of Sciences, China .
2014 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 737, 196-200 p.Article in journal (Refereed) Published
Abstract [en]

We find that the lepton flavor mixing matrix Ushould possess a partial mu-tau permutation symmetry vertical bar U-mu 1 vertical bar =vertical bar U-tau 1 vertical bar, and the latter predicts a novel correlation between the Dirac CP-violating phase delta and three flavor mixing angles theta(12), theta(13) and theta(23) in the standard parametrization. Inputting the best-fit values of these angles reported by Capozzi et al., we obtain the prediction delta similar or equal to 255 degrees. in the normal neutrino mass ordering, which is in good agreement with the best-fit result delta similar or equal to 250 degrees. In this connection the inverted neutrino mass ordering is slightly disfavored. If this partial mu-tau symmetry is specified to be vertical bar U-mu 1 vertical bar = vertical bar U-tau 1 vertical bar = 1/root 6, one can reproduce the phenomenologically-favored relation sin(2)theta(12) = (1 - 2 tan(2)theta(13))/3 and a viable two-parameter description of U which were first uncovered in 2006. Moreover, we point out that the octant of theta(23) and the quadrant of delta can be resolved due to the slight violation of vertical bar U-mu 2 vertical bar = vertical bar U-tau 2 vertical bar and vertical bar U-mu 3 vertical bar = vertical bar U-tau 3 vertical bar either at the tree level or from radiative corrections.

Place, publisher, year, edition, pages
2014. Vol. 737, 196-200 p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-155784DOI: 10.1016/j.physletb.2014.08.047ISI: 000342757700034ScopusID: 2-s2.0-84907400061OAI: diva2:763342

QC 20141114

Available from: 2014-11-14 Created: 2014-11-13 Last updated: 2014-11-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Zhou, Shun
By organisation
Theoretical Physics
In the same journal
Physics Letters B
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 21 hits
ReferencesLink to record
Permanent link

Direct link