We have evaluated the short distance QCD corrections to the B̃→Xse+e− process in a quark spectator model within an effective hamiltonian framework. The dependence of the rate on the top-quark mass is examined in the minimal standard model. We have found a light suppression of the differential width for a large invariant mass of the e+e− pair; the integrated width is slightly enhanced.
QCD corrections to the →X s e+ e− decay
VICERE', ANDREA
1991
Abstract
We have evaluated the short distance QCD corrections to the B̃→Xse+e− process in a quark spectator model within an effective hamiltonian framework. The dependence of the rate on the top-quark mass is examined in the minimal standard model. We have found a light suppression of the differential width for a large invariant mass of the e+e− pair; the integrated width is slightly enhanced.File in questo prodotto:
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