Flavour geometry and effective Yukawa couplings in the MSSM
Flavour geometry and effective Yukawa couplings in the MSSM
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MSSM 中的风味几何和有效汤川耦合
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
A. Pilaftsis
中科院分区：
文献类型：
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作者：
J. Ellis;R. N. Hodgkinson;Jae Sik Lee;A. Pilaftsis
我们提出了一种新的几何方法的味道分解的任意软超临界破坏部门的MSSM。我们的方法是基于夸克和轻子Yukawa耦合的几何结果，并使我们能够得到一个线性独立的矩阵基的必要和充分条件，与内部[SU（3）<$U（1）]5味空间的完备性。在第二步中，我们计算了有效的汤川耦合，增强在大值的tan β一般软超临界质量参数。我们强调了非普适项在超费米子质量矩阵味分解中的贡献。我们提出的数值例子说明如何诱导这些条款的重整化群演化从通用输入边界条件，并证明其重要性的味道违反有效汤川耦合的夸克。
We present a new geometric approach to the flavour decomposition of an arbitrary soft supersymmetry-breaking sector in the MSSM. Our approach is based on the geometry that results from the quark and lepton Yukawa couplings, and enables us to derive the necessary and sufficient conditions for a linearly-independent basis of matrices related to the completeness of the internal [SU(3)⊗U(1)]5 flavour space. In a second step, we calculate the effective Yukawa couplings that are enhanced at large values of tan β for general soft supersymmetry-breaking mass parameters. We highlight the contributions due to non-universal terms in the flavour decompositions of the sfermion mass matrices. We present numerical examples illustrating how such terms are induced by renormalization-group evolution starting from universal input boundary conditions, and demonstrate their importance for the flavour-violating effective Yukawa couplings of quarks.