Now showing items 14-14 of 14

    • Taming the anti-B ---> X(s) gamma spectrum by dressed gluon exponentiation. 

      Andersen, Jeppe R.; Gardi, Einan (HEP, Cavendish Laboratory, University of Cambridge, 2005-02)
      We show that the ¯B −→ Xsγ photon energy (E ) spectrum can be reliably computed by resummed perturbation theory. Our calculation is based on Dressed Gluon Exponentiation (DGE) incorporating Sudakov and renormalon ...