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Search for the decay B0 → a±1ρ∓ Graugés Pous, Eugeni BABAR Collaboration Física de partícules Experiments Particle physics Experiments We present a search for the rare B -meson decay B 0 → a ± 1 ρ ∓ with a ± 1 → π + π − π ± . We use ( 110 ± 1.2 ) × 10 6     Υ ( 4 S ) → B ¯¯¯ B 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 ( B 0 → a ± 1 ρ ∓ ) B ( a ± 1 → π + π − π ± ) , where we assume that the a ± 1 decays exclusively to ρ 0 π ± . 2019-04-04T12:53:09Z 2019-04-04T12:53:09Z 2006-08-11 2019-04-04T12:53:09Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.031104 Physical Review D, 2006, vol. 74, num. 3, p. 031104(R) https://doi.org/10.1103/PhysRevD.74.031104 (c) American Physical Society, 2006 info:eu-repo/semantics/openAccess American Physical Society Articles publicats en revistes (Física Quàntica i Astrofísica)