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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/133581
Measurement of the ¯¯¯B0s Effective Lifetime in the J/ψf0(980) Final State
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The effective lifetime of the ¯¯¯ B 0 s meson in the decay mode ¯¯¯ B 0 s → J / ψ f 0 ( 980 ) is measured using 1.0 fb − 1 of data collected in p p 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 C P -odd, and C P 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 0 s mass eigenstate, Γ H = 0.588 ± 0.014 ± 0.009 ps − 1 .
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ABELLAN BETETA, Carlos, et al. Measurement of the ¯¯¯B0s Effective Lifetime in the J/ψf0(980) Final State. Physical Review Letters. 2012. Vol. 109, num. 15, pags. 152002. ISSN 0031-9007. [consulted: 14 of June of 2026]. Available at: https://hdl.handle.net/2445/133581