Relating quarks and leptons without grand-unification
Relating quarks and leptons without grand-unification
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DOI：
10.1103/physrevd.84.036003
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发表时间：
2011-04
影响因子：
5
通讯作者：
S. Morisi;E. Peinado;J. Valle;Yusuke Shimizu
中科院分区：
文献类型：
--
作者：
S. Morisi;E. Peinado;J. Valle;Yusuke Shimizu
结合超对称性，味对称性可以将夸克与轻子联系起来，即使在没有大统一群的情况下。我们提出了一个SU（3）xSU（2）xU（1）模型，其中超对称性和假设的A4味对称性都是软破缺的，很好地再现了观测到的费米子质量等级，并预言：（i）下型夸克和带电轻子质量之间的关系，（ii）夸克扇区中的Cabibbo角和表征中微子振荡中CP破坏的反应器角之间的相关性。
In combination with supersymmetry, flavor symmetry may relate quarks with leptons, even in the absence of a grand-unification group. We propose an SU(3)xSU(2)xU(1) model where both supersymmetry and the assumed A4 flavor symmetries are softly broken, reproducing well the observed fermion mass hierarchies and predicting: (i) a relation between down-type quarks and charged lepton masses, and (ii) a correlation between the Cabibbo angle in the quark sector, and the reactor angle characterizing CP violation in neutrino oscillations.