Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-12-19
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, latex+sprocl.sty, 2 figures uuencoded. Based on a talk given by J.M. Moreno at the International Workshop on Elementa
Scientific paper
In the absence of any additional assumption it is natural to conjecture that sizeable flavour-mixing mass entries, $\Delta m^2$, may appear in the mass matrices of the scalars of the MSSM, i.e. $\Delta m^2\sim O(m^2)$. This flavour violation can still be reconciled with the experiment if the gaugino mass, $M_{1/2}$, is large enough to yield (through the renormalization group running) a sufficiently small $\Delta m^2 / m^2$ at low energy. This leads to a gaugino dominance framework (i.e. $M_{1/2}^2\gg m^2$), which permits a remarkably model--independent analysis. We study this possibility focussing our attention on the $\mu\rightarrow e,\gamma$ decay. In this way we obtain very strong and general constraints, in particular $\frac{M_{1/2}^2}{\Delta m} \simgt 34\ {\rm TeV}$.
Carlos Beatriz de
Casas Alberto J.
Moreno Jesus M.
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