The physics of the η-η ′ system versus B 0 → J/ψ η (η ′) and Bs→ J/ψ η (η ′) decays

M. A. Andreichikov, M. I. Eides, V. A. Novikov, M. I. Vysotsky

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


An approach to the properties of the η-η′ system developed to solve the famous U(1) problem is used to calculate the partial widths ratios to η and η′ in the B0 → J/ψη(η′,π) and Bs → J/ψη(η′) decays. We obtain the results in agreement with the experimental data.

Original languageEnglish
Article number2050111
JournalInternational Journal of Modern Physics A
Issue number21
StatePublished - Jul 30 2020

Bibliographical note

Funding Information:
We are grateful to A. E. Bondar for bringing the KLOE measurement19,20 to our attention. Short version of this paper was published in Ref. 26. M. A. Andreichikov, V. A. Novikov and M. I. Vysotsky are supported by RSF grant 19-12-00123, M. I. Eides is supported by the NSF grant PHY-1724638.

Publisher Copyright:
© 2020 World Scientific Publishing Company.


  • B-meson decays
  • Chiral anomaly

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics


Dive into the research topics of 'The physics of the η-η ′ system versus B 0 → J/ψ η (η ′) and Bs→ J/ψ η (η ′) decays'. Together they form a unique fingerprint.

Cite this