论文标题

在PA-2HDM中的通用纹理上

On the Universal Texture in the PA-2HDM for the V-SPIN case

论文作者

Carrillo-Monteverde, A., Gómez-Ávila, S., López-Lozano, L.

论文摘要

在部分对齐的两个Higgs Doublet模型中,仅允许在第三代和第二代费米子之间违反风味,我们提出了一种机制,通过在夸克和lept子的质量矩阵上通过统一的V-Spin风味转化生成第二个Yukawa矩阵。另外,我们假设这种风味转化是通用的,这是,我们使用相同的参数来生成两个扇区中的Yukawa矩阵元素,从而大大减少了自由参数的数量。结果,我们获得了Yukawa矩阵元素之间的关系,我们称之为普遍性约束。同样,我们获得了第二个Yukawa矩阵元素的值间隔,该元素以Cheng和Sher Ansatz表示,以$τ\ to \muμ^+μ^ - $和$τ\ to的γμ$来自普遍性约束和实验性界限。最后,我们显示了从$ b_s \ to n of $ b_s \ $衰减的风味转化的参数区域,$ b_s^0- \ bar {b} _s^0 $混合,$τ\ \ $τ\ tomum^+μ^ - $和$τ\ $τ\toγμ$实验界。

In a Partially Aligned Two Higgs Doublet Model, where only is allowed flavor violation between third and second generation of fermions, we propose a mechanism to generate the second Yukawa matrix through a Unitary V-Spin flavor transformation on the mass matrix for quarks and leptons. Also we assume that this flavor transformation is universal, this is, we use the same parameters to generate Yukawa matrix elements in both sectors, reducing drastically the number of free parameters. As consequence we obtained a serie of relations between Yukawa matrix elements, that we called the Universality Constraint. Also, we obtained an interval of values for the second Yukawa matrix elements, expressed in terms of the Cheng and Sher ansatz, for $τ\to\ muμ^+μ^-$ and $τ\toγμ$ coming from the Universality Constraint and experimental bounds for light scalar masses. Finally, we show the allowed region of parameters for the flavor transformation from $B_s\toμμ$ decays, $B_s^0-\bar{B}_s^0$ mixing, $τ\toμμ^+μ^-$ and $τ\toγμ$ experimental bounds.

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