The first measurement of the effective lifetime of the B(s)(0) meson in the decay B(s)(0) Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment. The measured value of the B(s)(0) Ds-Ds+ effective lifetime is 1.379 ± 0.026 ± 0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B(s)(0) mass eigenstate of GammaL = 0.725 ± 0.014 ± 0.009 ps(-1). The B(s)(0) lifetime is also measured using the flavor-specific B(s)(0) D-Ds+ decay to be 1.52 ± 0.15 ± 0.01 ps.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Albrecht, J., et al. (2014). Measurement of the Bs(0) Ds-Ds+ and Bs(0) D-Ds+ effective lifetimes. PHYSICAL REVIEW LETTERS, 112(11), 111802-111802.

Measurement of the Bs(0) Ds-Ds+ and Bs(0) D-Ds+ effective lifetimes

Archilli, F;CARBONI, GIOVANNI;SANTOVETTI, EMANUELE;
2014-01-01

Abstract

The first measurement of the effective lifetime of the B(s)(0) meson in the decay B(s)(0) Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment. The measured value of the B(s)(0) Ds-Ds+ effective lifetime is 1.379 ± 0.026 ± 0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B(s)(0) mass eigenstate of GammaL = 0.725 ± 0.014 ± 0.009 ps(-1). The B(s)(0) lifetime is also measured using the flavor-specific B(s)(0) D-Ds+ decay to be 1.52 ± 0.15 ± 0.01 ps.
2014
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Albrecht, J., et al. (2014). Measurement of the Bs(0) Ds-Ds+ and Bs(0) D-Ds+ effective lifetimes. PHYSICAL REVIEW LETTERS, 112(11), 111802-111802.
Aaij, R; Adeva, B; Adinolfi, M; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Ali, S; Alkhazov, G; Alvarez Cartelle, P; Alves, A; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/99027
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