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Measurement of the B¯(s)(0) effective lifetime in the J/ψf0(980) final state.

Abstract:
The effective lifetime of the B ¯(s)(0) meson in the decay mode B¯(s)(0)→J/ψf(0)(980) is measured using 1.0 fb(-1) of data collected in pp collisions at √s=7 TeV with the LHCb detector. The result is 1.700±0.040±0.026 ps, 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 B¯(s)(0) mass eigenstate, Γ(H)=0.588±0.014±0.009 ps(-1).
Publication status:
Published

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Journal:
Physical review letters
Volume:
109
Issue:
15
Pages:
152002
Publication date:
2012-10-09
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:99dff8d0-4a22-4858-8d28-02022f036fbe
Source identifiers:
341350
Local pid:
pubs:341350
Language:
English
Keywords:

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