Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-03-15
Phys.Lett. B530 (2002) 179-187
Physics
High Energy Physics
High Energy Physics - Phenomenology
To match the version in Phys. Lett. B (two references added, result/conclusion un-changed)
Scientific paper
10.1016/S0370-2693(02)01330-8
The squark mass-matrix from the soft supersymmetry (SUSY) breaking sector contains a rich flavor-mixing structure that allows O(1) mixings among top- and charm-squarks while being consistent with all the existing theoretical and experimental bounds. We formulate a {\it minimal} flavor-changing-neutral current scheme in which the squark mixings arise from the non-diagonal scalar trilinear interactions. This feature can be realized in a class of new models with horizontal U(1)_H symmetry which generates realistic quark-mass matrices and provides a solution to the SUSY \mu-problem. Finally, without using the mass-insertion approximation, we analyze SUSY radiative corrections to the bcH^+ and tch^0 couplings, and show that these couplings can reveal exciting new discovery channels for the Higgs boson signals at the Tevatron and the LHC.
Diaz-Cruz Lorenzo J.
He Hong-Jian
Yuan C.--P.
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