We have searched for the decays B-0-> D(s)(+)a(0)(-), B-0-> D(s)(*+)a(0)(-), B-0-> D(s)(+)a(2)(-) and B-0-> D(s)(*+)a(2)(-) in a sample of about 230x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find no evidence for these decays and set upper limits at 90% C.L. on the branching fractions: B(B-0-> D(s)(+)a(0)(-))< 1.9x10(-5), B(B-0-> D(s)(*+)a(0)(-))< 3.6x10(-5), B(B-0-> D(s)(+)a(2)(-))< 1.9x10(-4), and B(B-0-> D(s)(*+)a(2)(-))< 2.0x10(-4).
Search for the rare decays B-0 -> D(s)(()+)a(0(2))(-) RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009
ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CALDERINI, GIOVANNI;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2006-01-01
Abstract
We have searched for the decays B-0-> D(s)(+)a(0)(-), B-0-> D(s)(*+)a(0)(-), B-0-> D(s)(+)a(2)(-) and B-0-> D(s)(*+)a(2)(-) in a sample of about 230x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find no evidence for these decays and set upper limits at 90% C.L. on the branching fractions: B(B-0-> D(s)(+)a(0)(-))< 1.9x10(-5), B(B-0-> D(s)(*+)a(0)(-))< 3.6x10(-5), B(B-0-> D(s)(+)a(2)(-))< 1.9x10(-4), and B(B-0-> D(s)(*+)a(2)(-))< 2.0x10(-4).File in questo prodotto:
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