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We conduct a numerical analysis of the permissible parameter space that aligns with the data on neutrino mixing angles within the perturbed tribimaximal (TBM) framework. Our investigation includes the corrections of the forms \(U_{ij} \cdot U_{\text {TBM}} \cdot U_{kl}\) , \(U_{\text {TBM}} \cdot U_{ij} \cdot U_{kl}\) , and \(U_{ij} \cdot U_{kl} \cdot U_{\text {TBM}}\) for both normal and inverted hierarchy scenarios. In this context, \(U_{\text {TBM}}\) represents a tribimaximal mixing matrix, while U denotes a two-dimensional unitary correction matrix that can be characterized by a mixing angle and a phase parameter. We assess the constraints on leptonic CP-violating phases derived from the allowed parameter space.

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Restricting CP Violating Phases in Tribimaximal Limit

  • 会议论文

  • 发表日期：

    2025年

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  • Sumit K. Garg,
  • Athula D. V.,
  • Chaitanya Sampara

摘要

We conduct a numerical analysis of the permissible parameter space that aligns with the data on neutrino mixing angles within the perturbed tribimaximal (TBM) framework. Our investigation includes the corrections of the forms \(U_{ij} \cdot U_{\text {TBM}} \cdot U_{kl}\) , \(U_{\text {TBM}} \cdot U_{ij} \cdot U_{kl}\) , and \(U_{ij} \cdot U_{kl} \cdot U_{\text {TBM}}\) for both normal and inverted hierarchy scenarios. In this context, \(U_{\text {TBM}}\) represents a tribimaximal mixing matrix, while U denotes a two-dimensional unitary correction matrix that can be characterized by a mixing angle and a phase parameter. We assess the constraints on leptonic CP-violating phases derived from the allowed parameter space.