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. © 2012 CERN.

Aaij, R., Abellan Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2012). Measurement of the B̄s0 effective lifetime in the J/ψf 0(980) final state. PHYSICAL REVIEW LETTERS, 109(15) [10.1103/PhysRevLett.109.152002].

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

CALVI, MARTA;KUCHARCZYK, MARCIN;Martinelli, M;PEREGO, DAVIDE LUIGI;PESSINA, GIANLUIGI EZIO;
2012

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. © 2012 CERN.
Articolo in rivista - Articolo scientifico
Heavy Flavour Physics, LHC Collider
English
2012
109
15
152002
none
Aaij, R., Abellan Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2012). Measurement of the B̄s0 effective lifetime in the J/ψf 0(980) final state. PHYSICAL REVIEW LETTERS, 109(15) [10.1103/PhysRevLett.109.152002].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/70168
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