2026-04-13T01:29:52Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1314052025-12-05T16:48:49Zcom_2072_1057col_2072_478823col_2072_478917

00925njm 22002777a 4500 dc Graugés Pous, Eugeni author BABAR Collaboration author 2019-04-04T12:49:20Z 2019-04-04T12:49:20Z 2006-08-14 2019-04-04T12:49:20Z We describe searches for decays of B mesons to the charmless final states η ′ η ′ K . The data consist of 228 × 10 6 B ¯¯¯ B pairs produced in e + e − annihilation, collected with the BABAR detector at the Stanford Linear Accelerator Center. The 90% confidence level upper limits for the branching fractions are B ( B 0 → η ′ η ′ K 0 ) < 31 × 10 − 6 and B ( B + → η ′ η ′ K + ) < 25 × 10 − 6 . Física de partícules Experiments Mesons (Física nuclear) Particle physics Experiments Mesons (Nuclear physics) Search for B meson decays to η′η′K