Jul 20 – 27, 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Long-Distance Contribution to Delta Gamma_s in the B_s-Bbar_s System

Not scheduled
Dauphine (Alpes Congrès - Alpexpo)


Alpes Congrès - Alpexpo

Poster Flavour Physics and Fundamental Symmetries


Prof. Chun-Khiang Chua (Chung Yuan Christian University)


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.

Primary author

Prof. Chun-Khiang Chua (Chung Yuan Christian University)


Mr Chia-Hsien Shen (National Taiwan University) Prof. Wei-Shu Hou (National Taiwan University)

Presentation materials