B lifetimes
•First measurements which CDF will perform in b
sector
•Necessary step towards
oscillation
•(Test of alignment, tracking,
tagging.)
•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
