O ct 2 00 0 Fermilab – Pub – 00 / 242 – T CERN-TH / 2000-295 SCIPP 00 / 34 ANL-HEP-PR-00-104 EFI-2000-35 hep-ph / 0010003 b → sγ and supersymmetry with large tan β

@inproceedings{Carena2000OC2,
  title={O ct 2 00 0 Fermilab – Pub – 00 / 242 – T CERN-TH / 2000-295 SCIPP 00 / 34 ANL-HEP-PR-00-104 EFI-2000-35 hep-ph / 0010003 b → sγ and supersymmetry with large tan β},
  author={M. Carena and David Garc{\'i}a and Ulrich Nierste and C. E. M. Wagner},
  year={2000}
}
We discuss the constraints on the supersymmetric parameter space from the decay mode b → sγ for large values of tan β. We improve the theoretical prediction for the decay rate by summing very large radiative corrections to all orders in perturbation theory. This extends the validity of the perturbative calculation to the large tanβ regime. This resummation of terms of order α s tan β is based on a recently proposed effective lagrangian for the Yukawa interaction of bottom quarks. Moreover, we… CONTINUE READING