A non-renormalizable $B-L$ model with $Q_4\times Z_4\times Z_2$ flavor symmetry for cobimaximal neutrino mixing

2021 ◽  
Author(s):  
Vien Van Vo
2012 ◽  
Vol 857 (3) ◽  
pp. 219-253 ◽  
Author(s):  
Gui-Jun Ding ◽  
Lisa L. Everett ◽  
Alexander J. Stuart

2013 ◽  
Vol 87 (5) ◽  
Author(s):  
Gui-Jun Ding ◽  
S. Morisi ◽  
J. W. F. Valle

2015 ◽  
Vol 30 (26) ◽  
pp. 1530020 ◽  
Author(s):  
Ernest Ma ◽  
Rahul Srivastava

The gauged [Formula: see text] symmetry is one of the simplest and well-studied extension of Standard Model. In the conventional case, addition of three singlet right-handed neutrinos each transforming as [Formula: see text] under the [Formula: see text] symmetry renders it anomaly-free. It is usually assumed that the [Formula: see text] symmetry is spontaneously broken by a singlet scalar having two units of [Formula: see text] charge, resulting in a natural implementation of Majorana seesaw mechanism for neutrinos. However, as we discuss here, there is another simple anomaly-free solution which leads to Dirac or inverse seesaw masses for neutrinos. These new possibilities are explored along with an application to neutrino mixing with [Formula: see text] flavor symmetry.


2011 ◽  
Vol 84 (7) ◽  
Author(s):  
Qing-Hong Cao ◽  
Shaaban Khalil ◽  
Ernest Ma ◽  
Hiroshi Okada

2000 ◽  
Vol 62 (1) ◽  
Author(s):  
Alfredo Aranda ◽  
Christopher D. Carone ◽  
Richard F. Lebed

2015 ◽  
Vol 30 (21) ◽  
pp. 1550117 ◽  
Author(s):  
Vo Van Vien ◽  
Hoang Ngoc Long

We propose a 3-3-1 model with neutral fermions based on [Formula: see text] flavor symmetry responsible for fermion masses and mixings with nonzero [Formula: see text]. To get realistic neutrino mixing, we just add a new [Formula: see text] triplet being in [Formula: see text] under [Formula: see text]. The neutrinos get small masses from two [Formula: see text] antisextets and one [Formula: see text] triplet. The model can fit the present data on neutrino masses and mixing as well as the effective mass governing neutrinoless double beta decay. Our results show that the neutrino masses are naturally small and a little deviation from the tri-bimaximal neutrino mixing form can be realized. The Dirac CP violation phase [Formula: see text] is predicted to either [Formula: see text] or [Formula: see text] with [Formula: see text].


2016 ◽  
Vol 26 (1) ◽  
pp. 1
Author(s):  
Phi Quang Van ◽  
Nguyen Thi Hong Van

Neutrino masses and mixing in an extended standard model acquiring an A4 flavour symmetry are considered. The corresponding three-neutrino mixing matrix obtained via a pertur- bative method allows us to determine the Dirac CP violation phase (\delta_{CP}) as a function of the mixing angles (\theta_{12}, \theta_{23}, \theta_{13}). Then, numerical values and distributions of \delta_{CP} are given. The latter values are quite close to the global fits of the experimental data for both the normal ordering and inverse ordering of the neutrino masses.


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