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arXiv 0710.1869hep-ph
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从最小味违反得到味&一个可行的Randall-Sundrum模型

Flavor from Minimal Flavor Violation & a Viable Randall-Sundrum Model

A. Liam Fitzpatrick, Gilad Perez, Lisa Randall

摘要:

我们提出了一个变形的额外维度,兰德尔Sundrum(RS),框架,这是基于五个维度(5D)的最小味违反(MFV),其中唯一的来源味打破是两个5D无政府汤川矩阵。汤川矩阵还控制了体质量,这是负责在低能理论中产生的味道结构和质量层次。这种设置的一个有趣的结果是,在低能量下,理论流到MFV模型旁边,其中风味违反主要来自第三代。低能量味道违反进一步抑制了一个单一的参数,拨号的数量违反在向上或向下的部门。因此,有一个尖锐的限制,在那里没有味道破坏的下型夸克部门,值得注意的是,这是有利于当我们适合的味道参数。这种机制是用来消除目前的RS风味和CP的问题,即使卡鲁扎-克莱因规模低至2 TeV!我们的构造还表明,经济超对称和非超对称,强动态为基础的,风味模型可以建立在相同的概念。

英文摘要:

We present a variant of the warped extra dimension, Randall-Sundrum (RS), framework which is based on five dimensional (5D) minimal flavor violation (MFV), in which the only sources of flavor breaking are two 5D anarchic Yukawa matrices. The Yukawa matrices also control the bulk masses, which are responsible for the resulting flavor structure and mass hierarchy in the low energy theory. An interesting result of this set-up is that at low energies the theory flows to next to MFV model where flavor violation is dominantly coming from the third generation. Low energy flavor violation is further suppressed by a single parameter that dials the amount of violation in the up or down sector. There is therefore a sharp limit in which there is no flavor violation in the down type quark sector which, remarkably, is favored when we fit for the flavor parameters. This mechanism is used to eliminate the current RS flavor and CP problem even with a Kaluza-Klein scale as low as 2 TeV! Our construction also suggests that economic supersymmetric and non-supersymmetric, strong dynamic-based, flavor models may be built based on the same concepts.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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