Accès ouvert
2004
article
OpenAlex
B Aubert, R Barate, D Boutigny, JM Gaillard et autres
We report a measurement of the CP-violation parameter sin 2β with B0J/ψKS0 decays in which the J/ψ decays to hadrons or to muons that do not satisfy our standard identification criteria. With a sample of 88 million BB̄ events collected by the …
Accès ouvert
2003
article
OpenAlex
B Aubert, R Barate, D Boutigny, JM Gaillard et autres
The neutral B meson lifetime is measured with the data collected by the BABAR detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosity of 20.7 fb-1. The decays B0 →D*-π+ and B0→D*-p+ are selected …
Accès ouvert
2002
article
OpenAlex
B Aubert, D Boutigny, JM Gaillard, A Hicheur et autres
We measure the branching fractions of the Ψ(2S) meson to the leptonic final states e+e- and μ+μ- relative to that for Ψ(2S)→J/Ψπ_. The method uses Ψ(2S) mesons produced in the decay of B mesons at the Y(45) resonance in a data sample …