We have searched for the decays B0→Ds+a0-, B0→Ds*+a0-, B0→Ds+a2- and B0→Ds*+a2- in a sample of about 230×106 Υ(4S)→BB̄ 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(B0→Ds+a0-)<1. 9×10-5, B(B0→Ds*+a0-)<3.6×10-5, B(B0→Ds+a2-)<1.9×10-4, and B(B0→Ds*+a2-) <2.0×10-4.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2006). Search for the rare decays B0 → Ds (*)+a0(2)-. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 73(7) [10.1103/PhysRevD.73.071103].

Search for the rare decays B0 → Ds (*)+a0(2)-

CARPINELLI, Massimo;
2006

Abstract

We have searched for the decays B0→Ds+a0-, B0→Ds*+a0-, B0→Ds+a2- and B0→Ds*+a2- in a sample of about 230×106 Υ(4S)→BB̄ 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(B0→Ds+a0-)<1. 9×10-5, B(B0→Ds*+a0-)<3.6×10-5, B(B0→Ds+a2-)<1.9×10-4, and B(B0→Ds*+a2-) <2.0×10-4.
Articolo in rivista - Articolo scientifico
BABAR detector
English
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2006). Search for the rare decays B0 → Ds (*)+a0(2)-. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 73(7) [10.1103/PhysRevD.73.071103].
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