Observation of Π (4S) →η′ Π (1S)

(Belle Collaboration)

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10 Citations (Scopus)


We report the first observation of the hadronic transition Π(4S)→η′ Π (1S), using 496 fb-1 data collected at the Π (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct the η′ meson through its decays to ρ0γ and to π+π-η, with η→γγ. We measure B(Π(4S)→η′Π(1S))=[3.43±0.88(stat)±0.21(syst)]×10-5, with a significance of 5.7σ.

Original languageEnglish
Article number062001
JournalPhysical review letters
Issue number6
Publication statusPublished - 2018 Aug 6

Bibliographical note

Publisher Copyright:
© 2018 American Physical Society. Published by the American Physical Society under the terms of the «https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

ASJC Scopus subject areas

  • General Physics and Astronomy


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