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Study of B Meson Decays with Excited η and η' Mesons
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Using 383 × 10 6 B ¯¯¯ B pairs from the BABAR data sample, we report results for branching fractions of six charged B -meson decay modes, where a charged kaon recoils against a charmless resonance decaying to K ¯¯¯¯ K ∗ or η π π final states with mass in the range ( 1.2 - 1.8 ) GeV / c 2 . We observe a significant enhancement at the low K ¯¯¯¯ K ∗ invariant mass which is interpreted as B + → η ( 1475 ) K + , find evidence for the decay B + → η ( 1295 ) K + , and place upper limits on the decays B + → η ( 1405 ) K + , B + → f 1 ( 1285 ) K + , B + → f 1 ( 1420 ) K + , and B + → ϕ ( 1680 ) K + .
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GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Study of B Meson Decays with Excited η and η' Mesons. Physical Review Letters. 2008. Vol. 101, num. 9, pags. 091801. ISSN 0031-9007. [consulted: 6 of June of 2026]. Available at: https://hdl.handle.net/2445/139350