Heavy flavour physics: lifetimes
•First measurements which
CDF will perform in b sector
•Necessary step towards
oscillation
•Best
measurement of Bs0, Lb. (Unique)
HQET:
t(B+ )/ t (B0 )=1.05
t( Bs0)/ t (B0 )=1.00
t( Lb)/ t (B0 )=0.9 to 1.0
Experiment:
t( Lb)/ t (B0 ) is 0.78+-.04
2 fb-1:
3000 Bs => s(ct(Bs)) ~ 0.03 ps
2000 LB => s(ct(LB)) ~ 0.04 ps