A study on the rare radiative decay $B_c \to D_s^*\gamma$ in technicolor with scalars
Abstract
Applying the perturbative QCD (PQCD), we study the process $B_c\rightarrow D_s^*\gamma$ in the technicolor with a massless scalar doublet model (TCMLSM) recently presented by C. D. Carone and H. Georgi; and compare the results with that estimated in the standard model (SM). There are two mechanisms which contribute to the $B_c\rightarrow D_s^* \gamma$ process. One proceeds through the short distance $b\rightarrow s \gamma$ transition, the other through weak annihilation accompanied by a photon emission. In the SM, these two processes are found to contribute with the same order of magnitude. In the TCMLSM, the modification of $B_c\rightarrow D_s^*\gamma$ from $\pi_p$ (the physical pions in this model) is small for the allowed mass of $\pi_p$.
 Publication:

arXiv eprints
 Pub Date:
 September 1996
 arXiv:
 arXiv:hepph/9609272
 Bibcode:
 1996hep.ph....9272L
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 16 pages, Latex, no macros, 3 figures(in Latex), hard copy is available upon request. to appear in Z. Phys. C