  An improved analysis of the $b\to s+\gamma$ decay in the minimal flavor
violating case is given taking into account additional contributions in the
supersymmetric sector which enter in the next-to-leading-order (NLO) and are
enhanced by $\tan\beta$ factors. Specifically, we compute a set of twenty
one-loop diagrams to give the most complete analysis to date of the NLO
supersymmetric corrections. These modifications are computed from the effective
charged Higgs and neutral Higgs couplings involving twelve loop diagrams for
the charged Higgs sector and eight loop diagrams for the neutral Higgs sector.
While the computations of these corrections are available in the literature,
their full forms including the complex phase dependence has not be considered.
  Our analysis takes account of the full allowed set of twenty one-loop
diagrams and is more general since it also includes the full dependence on CP
phases in non universal sugra and MSSM models. A numerical analysis is carried
out to estimate the size of the corrections to $b\to s+\gamma$. We also briefly
discuss the implications of these results for the search for supersymmetry.

High Energy Physics - Phenomenology