Measurement of the Bs0 Lifetime Using Semileptonic Decays
Abstract
We report a measurement of the Bs0 lifetime in the semileptonic decay channel Bs0→Ds-μ+νX (and its charge conjugate), using approximately 0.4fb-1 of data collected with the D0 detector during 2002 2004. Using 5176 reconstructed Ds-μ+ signal events, we have measured the Bs0 lifetime to be τ(Bs0)=1.398±0.044(stat)-0.025+0.028(syst)ps. This is the most precise measurement of the Bs0 lifetime to date.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 2006
- DOI:
- 10.1103/PhysRevLett.97.241801
- arXiv:
- arXiv:hep-ex/0604046
- Bibcode:
- 2006PhRvL..97x1801A
- Keywords:
-
- 13.25.Hw;
- 14.40.Nd;
- Decays of bottom mesons;
- Bottom mesons;
- High Energy Physics - Experiment
- E-Print:
- To appear in Phys. Rev. Lett., 7 pages, 2 figures