We have measured the process B+/-->(K*+/--> K(+/-)pi(0))pi(0) with 232x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a signal yield of 89 +/- 26 events we obtain the branching fraction B(B+/--> K(*+/-)pi(0))=[6.9 +/- 2.0(stat)+/- 1.3(syst)]x10(-6) with a statistical significance of 3.6 standard deviations including systematic uncertainties, and a charge asymmetry of 0.04 +/- 0.29(stat)+/- 0.05(syst). 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
Evidence for the decay B-+/--> K-*+/-pi(0)
ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CALDERINI, GIOVANNI;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2005-01-01
Abstract
We have measured the process B+/-->(K*+/--> K(+/-)pi(0))pi(0) with 232x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a signal yield of 89 +/- 26 events we obtain the branching fraction B(B+/--> K(*+/-)pi(0))=[6.9 +/- 2.0(stat)+/- 1.3(syst)]x10(-6) with a statistical significance of 3.6 standard deviations including systematic uncertainties, and a charge asymmetry of 0.04 +/- 0.29(stat)+/- 0.05(syst). 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.
