Modular Weights, U(1)'s and Mass Matrices

Details Modular Weights, U(1)'s and Mass Matrices Modular Weights, U(1)'s and Mass Matrices

1997-09-30

arxiv.org/abs/hep-ph/9709510v2

Phys.Lett. B419 (1998) 206-210

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex file, 11 pages, 1 Figure.Typos corrected and a reference has been added. Accepted in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)01412-3

We derive the scalar mass matrices in effective supergravity models augmented
by a $U(1)_F$ family symmetry. Simple relations between $U(1)_F$ charges and
modular weights of the superfields are derived and used to express the matrices
with a minimum number of parameters. The model predicts a branching ratio for
the $\mu\to e\gamma$ process close to the present experimental limits.

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