The effective lifetime of the anti-B0s meson in the decay mode anti-B0s → J/ψ f0(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 anti-B0s mass eigenstate, Γ_H = 0.588 ± 0.014 ± 0.009 ps^−1.

R. Aaij, C. Abellan Beteta, A. Adametz, B. Adeva, M. Adinolfi, C. Adrover, et al. (2012). Measurement of the anti-B0s Effective Lifetime in the J/ψ f0(980) Final State. PHYSICAL REVIEW LETTERS, 109(15), 1-8 [10.1103/PhysRevLett.109.152002].

Measurement of the anti-B0s Effective Lifetime in the J/ψ f0(980) Final State

CARBONE, ANGELO;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2012

Abstract

The effective lifetime of the anti-B0s meson in the decay mode anti-B0s → J/ψ f0(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 anti-B0s mass eigenstate, Γ_H = 0.588 ± 0.014 ± 0.009 ps^−1.
2012
R. Aaij, C. Abellan Beteta, A. Adametz, B. Adeva, M. Adinolfi, C. Adrover, et al. (2012). Measurement of the anti-B0s Effective Lifetime in the J/ψ f0(980) Final State. PHYSICAL REVIEW LETTERS, 109(15), 1-8 [10.1103/PhysRevLett.109.152002].
R. Aaij; C. Abellan Beteta; A. Adametz; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/127641
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