T2K indication of relatively large <I>θ</I><SUB>13</SUB> and a natural perturbation to the democratic neutrino mixing pattern

XING Zhi-Zhong

doi:10.1088/1674-1137/36/2/001

Chinese Physics C> 2012, Vol. 36> Issue(2) : 101-105 DOI: 10.1088/1674-1137/36/2/001

T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern

XING Zhi-Zhong ^,

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
The T2K Collaboration has recently reported a remarkable indication of the ν→ν oscillation which is consistent with a relatively large value of θ₁₃ in the three-flavor neutrino mixing scheme. We show that it is possible to account for such a result of θ₁₃ by introducing a natural perturbation to the democratic neutrino mixing pattern, without or with CP violation. A testable correlation between θ₁₃ and θ₂₃ is predicted in this ansatz. We also discuss the Wolfenstein-like parametrization of neutrino mixing, and comment on other possibilities of generating sufficiently large θ₁₃ at the electroweak scale.

References

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XING Zhi-Zhong. T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern[J]. Chinese Physics C, 2012, 36(2): 101-105. doi: 10.1088/1674-1137/36/2/001

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Received: 2011-08-31
Revised: 2011-05-06

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern

Corresponding author: XING Zhi-Zhong,

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2011-08-31

Accepted Date: 2011-05-06

Available Online: 2012-02-05

Abstract: The T2K Collaboration has recently reported a remarkable indication of the ν→ν oscillation which is consistent with a relatively large value of θ₁₃ in the three-flavor neutrino mixing scheme. We show that it is possible to account for such a result of θ₁₃ by introducing a natural perturbation to the democratic neutrino mixing pattern, without or with CP violation. A testable correlation between θ₁₃ and θ₂₃ is predicted in this ansatz. We also discuss the Wolfenstein-like parametrization of neutrino mixing, and comment on other possibilities of generating sufficiently large θ₁₃ at the electroweak scale.

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T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern

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T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern

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T2K indication of relatively large θ13 and a natural perturbation to the democratic neutrino mixing pattern

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T2K indication of relatively large θ13 and a natural perturbation to the democratic neutrino mixing pattern

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T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern

T2K indication of relatively large θ₁₃ and a natural perturbation to the democratic neutrino mixing pattern