Radiative Decay in the Technicolor with a Massless Scalar Doublet Model

Autor: Yi-Gang, Cao, Zheng-Kuan, Jiao
Zdroj: Communications in Theoretical Physics; July 2002, Vol. 38 Issue: 1 p47-52, 6p
Abstrakt: Applying perturbative QCD, we study the process in the technicolor with a massless scalar doublet model (TCMLSM). There are mainly two mechanisms contributing to the process. One proceeds through the short distance transition and the other through weak annihilation accompanied by a photon emission. We find that, compared with the standard model, the modification of from ?p(the physical pions in the TCMLSM) is so small that can be neglected for the allowed mass of ?p. The weak-annihilation contribution is found to be about one order larger than that of the electromagnetic penguin diagrams.
Databáze: Supplemental Index