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))(-)

FERRONI, Fernando
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).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12571/3148
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