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Model independent analysis of Dirac CP violating phase for some well-known mixing scenarios
International Journal of Modern Physics A ( IF 1.6 ) Pub Date : 2021-06-18 , DOI: 10.1142/s0217751x21501189
Sumit K. Garg 1
Affiliation  

In this paper, we present a model independent analysis of Leptonic CP violation for some well-known mixing scenarios. In particular, we considered modified schemes for bimaximal (BM), democratic (DC), hexagonal (HG) and tribimaximal (TBM) mixing for our numerical investigation. These model independent corrections to mixing matrices are parametrized in terms of complex rotation matrices (U) with related modified PMNS matrix of the forms Uijl V M,VM Uijr where Uijl,r is a complex rotation in ij sector and VM is unperturbed mixing scheme. We present generic formulae for mixing angles, Dirac CP phase (δCP) and Jarlskog invariant (JCP) in terms of correction parameters. The parameter space of each modified mixing case is scanned for fitting neutrino mixing angles using χ2 approach and the corresponding predictions for Leptonic CP phase (δCP) and Jarlskog invariant (JCP) has been evaluated from allowed parameter space. The obtained ranges are reported for all viable cases.

中文翻译:

一些著名混合场景的狄拉克 CP 违反相位的模型独立分析

在本文中,我们针对一些著名的混合场景提出了一种与轻子 CP 违规的模型无关的分析。特别是,我们考虑了双极大 (BM)、民主 (DC)、六边形 (HG) 和三极大 (TBM) 混合的改进方案,用于我们的数值研究。这些对混合矩阵的模型独立校正是根据复杂的旋转矩阵参数化的(ü)具有相关的修改后的 PMNS 矩阵形式 ü一世jl , ü一世jr在哪里ü一世jl,r是一个复杂的旋转一世j部门和是无扰动混合方案。我们提出了混合角的通用公式,Dirac CP 相位(δCP)和 Jarlskog 不变量(ĴCP)在校正参数方面。扫描每个修改混合情况的参数空间,以使用以下方法拟合中微子混合角χ2轻子 CP 相的方法和相应的预测(δCP)和 Jarlskog 不变量(ĴCP)已从允许的参数空间进行评估。报告了所有可行案例的获得范围。
更新日期:2021-06-18
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