Hyperon vector coupling f1(0) from 2+1 flavor lattice QCD

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We present results for the hyperon vector form factor f1 for Ξ0→Σ+lν̄ and Σ -→nlν̄ semileptonic decays from dynamical lattice QCD with domain-wall quarks. Simulations are performed on the 2+1 flavor gauge configurations generated by the RBC and UKQCD Collaborations with a lattice cutoff of a-1=1.7GeV. Our preliminary results, which are calculated at the lightest sea quark mass (pion mass down to approximately 330 MeV), show that a sign of the second-order correction of SU(3) breaking on hyperon vector coupling f1(0) is likely negative.

Original languageEnglish
Title of host publicationInternational Conference on the Structure of Baryons, BARYONS'10
Number of pages4
Publication statusPublished - 2011
Externally publishedYes
EventInternational Conference on the Structure of Baryons, BARYONS'10 - Osaka, Japan
Duration: 2010 Dec 72010 Dec 11

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherInternational Conference on the Structure of Baryons, BARYONS'10


  • CKM unitarily
  • SU(3) breaking
  • lattice QCD

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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