We present updated measurements of time-dependent CP asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465 +/- 5)x10(6) Upsilon(4S)-> B<overline>B</overline> decays collected with the BABAR detector at the PEP-II asymmetric energy e(+)e(-) storage rings operating at the SLAC National Accelerator Laboratory. The time-dependent CP asymmetry parameters measured from J psi K(S)(0), J psi K(L)(0), psi(2S)K(S)(0), eta(c)K(S)(0), chi(c1)K(S)(0), and J/psi K(*)(892)(0) decays are: C(f)=0.024 +/- 0.020(stat)+/- 0.016(syst) and -eta(f)S(f)=0.687 +/- 0.028(stat)+/- 0.012(syst).
Measurement of time-dependent CP asymmetry in B(0)-> c(c)over barK((*)0) decays RID C-5223-2009
ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CALDERINI, GIOVANNI;FORTI, FRANCESCO;GIORGI, MARCELLO;MORGANTI, MAURO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2009-01-01
Abstract
We present updated measurements of time-dependent CP asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465 +/- 5)x10(6) Upsilon(4S)-> BI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
