8 papers
Towards an exact evaluation of the supersymmetric O(alpha_s tan beta) corrections to \bar{B} -> X_s gamma
Francesca Borzumati, Christoph Greub, Youichi Yamada
The charged-Higgs contributions to the decay \bar{B} -> X_s gamma are discussed in the minimal supersymmetric standard model at large tan beta. These contributions receive two-loop…
Improved Model-Independent Analysis of Semileptonic and Radiative Rare Decays
E. Lunghi
We study the impact of recent B-factories measurements and upper limit of radiative and semileptonic rare B-decays. We present model independent constraints on the relevant Wilson…
A New Model-Independent Analysis of in Supersymmetry
Thomas Besmer, Christoph Greub, Tobias Hurth
Using the example of the rare decay , we analyse the importance of interference effects for the bounds on the parameters in the squark mass matrices within the unconst…
Indirect search for supersymmetry in rare B decays
C. Greub, T. Hurth, D. Wyler
QCD corrections to the gluino induced contribution to b --> s gamma are shown to be important in order to extract reliable bounds on the off-diagonal elements of the squark mass ma…
Theory of rare B meson decays
C. Greub
I review the NLO QCD calculations of the branching ratio for B--> X_s gamma in the SM. Including the leading electromagnetic corrections, one obtaines BR(B-> X_s gamma)=(3.32 +- 0.…
Lessons from B -> X_s gamma in Two Higgs Doublet Models
F. Borzumati, C. Greub
The next--to--leading order predictions for the branching ratio BR(B -> X_s gamma) are given in a generalized class of two Higgs doublets models. Included are the recently calculat…