 |
|
|
|
|
 |
|
|
Theoretical Uncertainties and Phenomenological Aspects of B->Xsg Decay
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
We analyze uncertainties in the theoretical prediction for the inclusive branching ratio BR[B-> Xsg]. We find that the dominant uncertainty in the leading order expression comes from its m-dependence. We discuss a next-to-leading order calculation B-> Xsg in general terms and check to what extent the m-dependence can be reduced in such a calculation. We present constraints on the Standard and Two-Higgs-Doublet Model parameters coming from the measurement of b->sg decay. The current theoretical uncertainties do not allow one to definitively restrict the Standard Model parameters much beyond the limits coming from other experiments. The bounds on the Two-Higgs-Doublet Model remain very strong, though significantly weaker than the ones present in the recent literature. In the Two-Higgs-Doublet Model case, the b->sg, Z->bb and b->crvr processes are enough to give the most restrictive bounds in the MH+-tanB plane.
|
|
|
|
|
|
|
|
For the newest resources, visit Wolfram Repositories and Archives »
