Explicit CP violation in the Dine-Seiberg-Thomas model

Details Explicit CP violation in the Dine-Seiberg-Thomas model Explicit CP violation in the Dine-Seiberg-Thomas model

2009-09-28

arxiv.org/abs/0909.5098v1

Eur.Phys.J.C65:517-522,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures

Scientific paper

10.1140/epjc/s10052-009-1213-x

The possibility of explicit CP violation is studied in a supersymmetric model proposed by Dine, Seiberg, and Thomas, with two effective dimension-five operators. The explicit CP violation may be triggered by complex phases in the coefficients for the dimension-five operators in the Higgs potential, and by a complex phase in the scalar top quark masses. Although the scenario of explicit CP violation is found to be inconsistent with the experimental data at LEP2 at the tree level, it may be possible at the one-loop level. For a reasonable parameter space, the masses of the neutral Higgs bosons and their couplings to a pair of $Z$ bosons are consistent with the LEP2 data, at the one-loop level.

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