State mixing and masses of the π0, η and η′ mesons from nf=1+1+1 lattice QCD+QED

CSSM QCDSF UKQCD Collaborations

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We present a lattice analysis of the light pseudoscalar mesons with consideration for the mixing between the flavor-neutral states π0, η and η′. We extract the masses and flavor compositions of the pseudoscalar meson nonet in nf=1+1+1 lattice QCD+QED around an SU(3)-flavor symmetric point, and observe flavor-symmetry features of the extracted data, along with preliminary extrapolation results for the flavor compositions at the physical point. A key result of this work is the observed mass splitting between the π0 and η on our ensembles, which is found to exhibit behavior that is simply related to the corresponding flavor compositions.
Original languageEnglish
Article number114514
Pages (from-to)1-9
Number of pages9
JournalPhysical Review D, particles, fields, gravitation, and cosmology
Issue number11
Publication statusPublished - 29 Dec 2021

Keywords / Materials (for Non-textual outputs)

  • hep-lat
  • hep-ph
  • nucl-th


Dive into the research topics of 'State mixing and masses of the π0, η and η′ mesons from nf=1+1+1 lattice QCD+QED'. Together they form a unique fingerprint.

Cite this