We present a search for the rare B-meson decay B0→a1±ρ∓ with a1±→π+π-π±. We use (110±1.2)×10^6 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We obtain an upper limit of 30×10-6 (90%C.L.) for the branching fraction product B(B0→a1±ρ∓)B(a1±→π+π-π±), where we assume that the a1± decays exclusively to ρ0π±.
Search for the decay B0→a1±ρ∓
SIMI, GABRIELE;GAZ A;MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;
2006
Abstract
We present a search for the rare B-meson decay B0→a1±ρ∓ with a1±→π+π-π±. We use (110±1.2)×10^6 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We obtain an upper limit of 30×10-6 (90%C.L.) for the branching fraction product B(B0→a1±ρ∓)B(a1±→π+π-π±), where we assume that the a1± decays exclusively to ρ0π±.
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