We measure the branching fraction and the CP-violating asymmetry of B-0-> K(S)(0)pi(0) decays with 227 million Upsilon(4S)-> B (B) over bar events collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We obtain a branching fraction B(B-0-> K(0)pi(0))=(11.4 +/- 0.9 +/- 0.6)x10(-6) and CP-violating asymmetry parameters C(KS)(0)pi(0)=0.06 +/- 0.18 +/- 0.03 and S(KS)(0)pi(0)=0.35(-0.33)(+0.30)+/- 0.04, where the first error is statistical and the second systematic. RI Peters, Klaus/C-2728-2008; Patrignani, Claudia/C-5223-2009; Lista, Luca/C-5719-2008; Bellini, Fabio/D-1055-2009; Neri, Nicola/G-3991-2012; Monge, Maria Roberta/G-9127-2012; Sarti, Alessio/I-2833-2012
Measurement of the branching fraction and the CP-violating asymmetry for the decay B-0 -> K-S(0)pi(0)
ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CALDERINI, GIOVANNI;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2005-01-01
Abstract
We measure the branching fraction and the CP-violating asymmetry of B-0-> K(S)(0)pi(0) decays with 227 million Upsilon(4S)-> B (B) over bar events collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We obtain a branching fraction B(B-0-> K(0)pi(0))=(11.4 +/- 0.9 +/- 0.6)x10(-6) and CP-violating asymmetry parameters C(KS)(0)pi(0)=0.06 +/- 0.18 +/- 0.03 and S(KS)(0)pi(0)=0.35(-0.33)(+0.30)+/- 0.04, where the first error is statistical and the second systematic. RI Peters, Klaus/C-2728-2008; Patrignani, Claudia/C-5223-2009; Lista, Luca/C-5719-2008; Bellini, Fabio/D-1055-2009; Neri, Nicola/G-3991-2012; Monge, Maria Roberta/G-9127-2012; Sarti, Alessio/I-2833-2012I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
