Measurement of the Lifetime Difference in the B0s System
- DO Collaboration, The
- Bertram, Iain A.
- Borissov, Guennadi V.
- Ratoff, Peter N.
- Sopczak, Andre
Publication date
October 2005
DOI Publisher
American Physical Society (APS)Abstract
We present a study of the decay BJ/. We obtain the CP-odd fraction in the final state at time zero, R=0.16±0.10(stat)±0.02(syst), the average lifetime of the (B, ) system, (B)=1.39(stat)(syst) ps, and the relative width difference between the heavy and light mass eigenstates, /(L-H)/=0.24(stat)(syst). With the additional constraint from the world average of the B lifetime measurements using semileptonic decays, we find (B)=1.39±0.06 ps and /=0.25. For the ratio of the B and B0 lifetimes we obtain =0.91±0.09(stat)±0.00
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