A measurement of the B0s lifetime using reconstructed D-s mesons

The OPAL Collaboration

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


We report a measurement of the B0s meson lifetime from B0s → D-sX decays, where D-s mesons are reconstructed in the D-s → φπ- and D-s → K*0K- decay channels. From approximately 3.7 million hadronic Z0 decays recorded by the OPAL detector at LEP a sample is selected containing 911 ± 83 candidates, of which 519 ± 136 are estimated to be from B0s meson decays. Fitting the distribution of the distance from the beam spot to the decay vertex of the D-s candidates with an unbinned likelihood function we measure π(B0s) = 1 72+0.20+0.18-0.19-0.17 ps, where the errors are statistical and systematic, respectively.

Original languageEnglish
Pages (from-to)407-416
Number of pages10
JournalEuropean Physical Journal C
Issue number3
StatePublished - 1 Jan 1998
Externally publishedYes

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'A measurement of the B0s lifetime using reconstructed D-s mesons'. Together they form a unique fingerprint.

Cite this