The rare K-decays in the Multiscale Walking Technicolor Model
Z.J.Xiao1,2 - L.X.Lü2 - H.K.Guo2 - G.R.Lu1,2
1 CCAST(World Laboratory) P.O. Box 8730, Beijing 100080,
2 Department of Physics, Henan Normal University, Xinxiang, 453002 P.R. China
Received: 17 June 1998 / Revised version: 12 August 1998 / Published online: 6 November 1998
We calculate the one-loop Z0-penguin contributions to the rare K-decays, , and ,from the unit-charged technipions and in the framework of the Multiscale Walking Technicolor Model. We find that: (a) the and can provide one to two orders enhancements to the branching ratios of the rare K-decays; (b) by comparing the experimental data of with the theoretical prediction one finds the lower mass bounds, for and ;(c) by comparing the experimental data of with the theoretical predictions one finds the lower bounds on mp1 and mp8, if only the contribution from is taken into account, and for , assuming ;(d) the assumed ranges of the masses mp1 and mp8 in the Multiscale Walking Technicolor Model are excluded by the rare K-decay data.