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Scherk-Schwarz Supersymmetry Breaking for Quasi-localized Matter Fields and Supersymmetry Flavor Violation

机译:准局域物质场的scherk-schwarz超对称破缺   和超对称风味违规

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摘要

We examine the soft supersymmetry breaking parameters induced by theScherk-Schwarz (SS) boundary condition in 5-dimensional orbifold field theoryin which the quark and lepton zero modes are quasi-localized at the orbifoldfixed points to generate the hierarchical Yukawa couplings. In such theories,the radion corresponds to a flavon to generate the flavor hierarchy and at thesame time plays the role of the messenger of supersymmetry breaking. As aconsequence, the resulting soft scalar masses and trilinear $A$-parameters ofmatter zero modes at the compactification scale are highly flavor-dependent,thereby can lead to dangerous flavor violations at low energy scales. Weanalyze in detail the low energy flavor violations in SS-dominatedsupersymmetry breaking scenario under the assumption that the compactificationscale is close to the grand unification scale and the 4-dimensional effectivetheory below the compactification scale is given by the minimal supersymmetricstandard model. Our analysis can be applied to any supersymmetry breakingmechanism giving a sizable $F$-component of the radion superfield, e.g. thehidden gaugino condensation model.
机译:我们在5维双折场理论中研究了由Scherk-Schwarz(SS)边界条件引起的软超对称破坏参数,其中夸克和轻子零模在双折点处准定位,以生成分层的Yukawa耦合。在这样的理论中,radion对应于黄酮以生成风味层次,并同时扮演着超对称破坏的使者的角色。结果,在紧实度下,最终的软标量质量和质点零模式的三线性$ A $参数高度依赖于风味,因此在低能级下可能导致危险的风味违背。在压实度接近大统一度,而压实度以下的4维有效理论由最小超对称标准模型给出的假设下,详细分析了SS主导的超对称破坏情景下的低能风味违规。我们的分析可以应用到任何超对称的断裂机制上,从而给出相当大的$ F $分量的光子超场,例如隐藏的高更诺缩合模型。

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