TY - JOUR
T1 - Singular Kähler potential and heavy top quark in a democratic mass matrix model
AU - Kakizaki, Mitsuru
AU - Yamaguchi, Masahiro
N1 - Funding Information:
This work was supported in part by the Grant-in-Aid from the Ministry of Education, Culture, Sports, Science and Technology, Japan, No. 12047201. M.K. thanks the Japan Society for the Promotion of Science for financial support.
PY - 2003/10/30
Y1 - 2003/10/30
N2 - It is pointed out that heavy top quark mass can be attributed to a singular normalization of its kinetic term, in which rescaling into canonical one yields large top Yukawa coupling. We pursue this novel possibility in a democratic mass matrix model where only the normalization of the third generation can be different from that of the other two generations. With diagonal breaking of democratic S3 symmetry, we show that the singular normalization for the top quark is essential to reproduce observed quark masses and mixing angles. We also briefly argue other applications of this mechanism.
AB - It is pointed out that heavy top quark mass can be attributed to a singular normalization of its kinetic term, in which rescaling into canonical one yields large top Yukawa coupling. We pursue this novel possibility in a democratic mass matrix model where only the normalization of the third generation can be different from that of the other two generations. With diagonal breaking of democratic S3 symmetry, we show that the singular normalization for the top quark is essential to reproduce observed quark masses and mixing angles. We also briefly argue other applications of this mechanism.
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U2 - 10.1016/j.physletb.2003.08.040
DO - 10.1016/j.physletb.2003.08.040
M3 - Article
AN - SCOPUS:10744228358
VL - 573
SP - 123
EP - 130
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-4
ER -