A prediction of δCP for a normal neutrino mass hierarchy in an extended standard model with an A4 flavour symmetry

IWTCP-2; NCTP-39

Dinh, Dinh Nguyen^1 ; Ky, Nguyen Anh^1,2 ; Vn, Phi Quang^1 ; Vân, Nguyen Thi Hng^1

Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Hanoi, Viet Nam^1

Laboratory for High Energy Physics and Cosmology, College of Science (VNU University of Science), Vietnam National University, 334 Nguyen Trai, Thanh Xuan, Hanoi, Viet Nam^2

关键词: Best fit;    CP violations;    Diagonalizations;    Dirac phase;    Mixing angle;    Neutrino mass;    Neutrino mass matrix;    Standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/627/1/012003/pdf
DOI  :  10.1088/1742-6596/627/1/012003

来源: IOP

【 摘 要 】

A method of diagonalization of a general neutrino mass matrix in an extended standard model with an A4 flavour symmetry is used. The method allows us to determine a relation between the mixing angles (θ12, θ23, θ13) and the CP-violation Dirac phase (δCP). The current prediction of δCPis quite good, near the 1σ region of the best fit of the experimental data at a normal neutrino mass hierarchy.