Measurement of the B̄s0 effective lifetime in the J/ψf 0(980) final state

The LHCb Collaboration

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Abstract

The effective lifetime of the B̄s0 meson in the decay mode B̄s0→J/ψf 0(980) is measured using 1.0fb -1 of data collected in pp collisions at √s=7TeV with the LHCb detector. The result is 1.700±0.040±0.026ps, where the first uncertainty is statistical and the second systematic. As the final state is CP-odd, and CP violation in this mode is measured to be small, the lifetime measurement can be translated into a measurement of the decay width of the heavy B̄s0 mass eigenstate, Γ H=0.588±0.014±0.009ps -1.

Original languageEnglish
Article number152002
Number of pages8
JournalPhysical Review Letters
Volume109
Issue number15
DOIs
Publication statusPublished - 9 Oct 2012
Externally publishedYes

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