Implications of equalities among the elements of CKM and PMNS matrices

Hong-Wei Ke; Song-Xue Zhao; Xue-Qian Li

doi:10.1088/1674-1137/40/5/053101

Chinese Physics C> 2016, Vol. 40> Issue(5) : 053101 DOI: 10.1088/1674-1137/40/5/053101

Implications of equalities among the elements of CKM and PMNS matrices

1.
School of Science, Tianjin University, Tianjin 300072, China
2.
School of Physics, Nankai University, Tianjin 300071, China

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Abstract：
Investigating the CKM matrix in different parameterization schemes, it is noticed that those schemes can be divided into a few groups where the sine values of the CP phase for each group are approximately equal i.e. there exist several relations among the CP phases. Using those relations, several approximate equalities among the elements of CKM matrix are established. The case can also be generalized to the PMNS matrix for the lepton sector. Assuming them to be exact, there are infinite numbers of solutions and by choosing special values for the free parameters in those solutions, several textures presented in the literature are obtained. Other authors have derived several mixing textures by using presumed symmetries; amazingly, some, though not all, of their forms are the same as those we obtained. This hints at the existence of a hidden symmetry which is broken in the practical world. Nature makes its own selection of the underlying symmetry and the way to break it, while we just guess what it is.
- CKM ,
- PMNS ,
- symmetry ,
- parameterization scheme

References

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Hong-Wei Ke, Song-Xue Zhao and Xue-Qian Li. Implications of equalities among the elements of CKM and PMNS matrices[J]. Chinese Physics C, 2016, 40(5): 053101. doi: 10.1088/1674-1137/40/5/053101

Hong-Wei Ke, Song-Xue Zhao and Xue-Qian Li. Implications of equalities among the elements of CKM and PMNS matrices[J]. Chinese Physics C, 2016, 40(5): 053101. doi: 10.1088/1674-1137/40/5/053101 shu

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Received: 2015-09-28

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Supported by National Natural Science Foundation of China(11375128, 11135009)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Implications of equalities among the elements of CKM and PMNS matrices

Corresponding author: Hong-Wei Ke,

Corresponding author: Xue-Qian Li,

1. School of Science, Tianjin University, Tianjin 300072, China

2. School of Physics, Nankai University, Tianjin 300071, China

Received Date: 2015-09-28

Available Online: 2016-05-05

Fund Project: Supported by National Natural Science Foundation of China(11375128, 11135009)

Abstract: Investigating the CKM matrix in different parameterization schemes, it is noticed that those schemes can be divided into a few groups where the sine values of the CP phase for each group are approximately equal i.e. there exist several relations among the CP phases. Using those relations, several approximate equalities among the elements of CKM matrix are established. The case can also be generalized to the PMNS matrix for the lepton sector. Assuming them to be exact, there are infinite numbers of solutions and by choosing special values for the free parameters in those solutions, several textures presented in the literature are obtained. Other authors have derived several mixing textures by using presumed symmetries; amazingly, some, though not all, of their forms are the same as those we obtained. This hints at the existence of a hidden symmetry which is broken in the practical world. Nature makes its own selection of the underlying symmetry and the way to break it, while we just guess what it is.

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Implications of equalities among the elements of CKM and PMNS matrices

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通讯作者: 陈斌, bchen63@163.com

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