TY - JOUR
T1 - Democratic (s)fermions and lepton flavor violation
AU - Hamaguchi, K.
AU - Kakizaki, Mitsuru
AU - Yamaguchi, Masahiro
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - The democratic approach to account for fermion masses and mixing is known to be successful not only in the quark sector but also in the lepton sector. Here we extend this ansatz to supersymmetric standard models, in which the Kähler potential obeys the underlying S3 flavor symmetries. The requirement of neutrino bi-large mixing angles constrains the form of the Kähler potential for left-handed lepton multiplets. We find that right-handed sleptons can have nondegenerate masses and flavor mixing, while left-handed sleptons are argued to have universal and hence flavor-blind masses. This mass pattern is testable in future collider experiments when superparticle masses will be measured precisely. Lepton flavor violation arises in this scenario. In particular, μ→eγ is expected to be observed in a planned future experiment if supersymmetry breaking scale is close to the weak scale.
AB - The democratic approach to account for fermion masses and mixing is known to be successful not only in the quark sector but also in the lepton sector. Here we extend this ansatz to supersymmetric standard models, in which the Kähler potential obeys the underlying S3 flavor symmetries. The requirement of neutrino bi-large mixing angles constrains the form of the Kähler potential for left-handed lepton multiplets. We find that right-handed sleptons can have nondegenerate masses and flavor mixing, while left-handed sleptons are argued to have universal and hence flavor-blind masses. This mass pattern is testable in future collider experiments when superparticle masses will be measured precisely. Lepton flavor violation arises in this scenario. In particular, μ→eγ is expected to be observed in a planned future experiment if supersymmetry breaking scale is close to the weak scale.
UR - http://www.scopus.com/inward/record.url?scp=0142151394&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0142151394&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.68.056007
DO - 10.1103/PhysRevD.68.056007
M3 - Article
AN - SCOPUS:0142151394
VL - 68
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 0556-2821
IS - 5
M1 - 056007
ER -