• Editors' Suggestion
  • Open Access

Observation of a00(980)f0(980) Mixing

M. Ablikim et al. (BESIII Collaboration)
Phys. Rev. Lett. 121, 022001 – Published 11 July 2018

Abstract

We report the first observation of a00(980)f0(980) mixing in the decays of J/ψϕf0(980)ϕa00(980)ϕηπ0 and χc1a00(980)π0f0(980)π0π+ππ0, using data samples of 1.31×109J/ψ events and 4.48×108ψ(3686) events accumulated with the BESIII detector. The signals of f0(980)a00(980) and a00(980)f0(980) mixing are observed at levels of statistical significance of 7.4σ and 5.5σ, respectively. The corresponding branching fractions and mixing intensities are measured and the constraint regions on the coupling constants, ga0K+K and gf0K+K, are estimated. The results improve the understanding of the nature of a00(980) and f0(980).

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 6 February 2018
  • Revised 8 June 2018

DOI:https://doi.org/10.1103/PhysRevLett.121.022001

Published by the American Physical Society under the terms of the 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. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Click to Expand

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 121, Iss. 2 — 13 July 2018

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×