Orateur
Prof.
Chun-Khiang Chua
(Chung Yuan Christian University)
Description
We estimate the long-distance contribution to the width difference Delta Gamma_s in the B_s- Bbar_s system from color-allowed two-body and three-body modes. For two-body modes, in addition to the usual D_s^(*) Dbar^(*)_s states, modes with excited states, D^(*)_{s0,s1}, are also included. We find that the contributions from the latter and three-body D^(*)_s Dbar^(*) Kbar^(*) modes are non-negligible. Our result is compared to short-distance calculation and data.
Auteur principal
Prof.
Chun-Khiang Chua
(Chung Yuan Christian University)
Co-auteurs
M.
Chia-Hsien Shen
(National Taiwan University)
Prof.
Wei-Shu Hou
(National Taiwan University)
