YUKAWA MATRICES FROM A SPONTANEOUSLY BROKEN ABELIAN SYMMETRY

被引:192
作者
DUDAS, E [1 ]
POKORSKI, S [1 ]
SAVOY, CA [1 ]
机构
[1] WERNER HEISENBERG INST PHYS,MAX PLANCK INST PHYS,D-80805 MUNICH,GERMANY
关键词
D O I
10.1016/0370-2693(95)00795-M
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We classify all the phenomenologically viable fermion mass matrices coming from a spontaneously broken abelian symmetry U(1)x, with one and two additional chiral fields of opposite charges X = +/- 1. We find that the non-trivial Kahler metric can fill zeroes of the fermion mass matrices up to phenomenologically interesting values. A general anomaly analysis shows that for one additional chiral field the only way to achieve anomaly cancellation is by use of the Green-Schwarz mechanism. For two additional fields with X = +/- 1 and negative charge differences in the lepton sector the anomalies can however be directly put to zero. This case gives a unique prediction for the ratio of the two Higgs scalars of MSSM, tg beta similar to m(l)/m(b) (sine theta(c))(2), where theta(c) is the Cabibbo angle.
引用
收藏
页码:45 / 55
页数:11
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