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

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1 Citation (Scopus)

Abstract

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
Pages443-446
Number of pages4
DOIs
Publication statusPublished - 2011 Nov 24
Externally publishedYes
EventInternational Conference on the Structure of Baryons, BARYONS'10 - Osaka, Japan
Duration: 2010 Dec 72010 Dec 11

Publication series

NameAIP Conference Proceedings
Volume1388
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on the Structure of Baryons, BARYONS'10
CountryJapan
CityOsaka
Period10/12/710/12/11

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Sasaki, S. (2011). Hyperon vector coupling f1(0) from 2+1 flavor lattice QCD. In International Conference on the Structure of Baryons, BARYONS'10 (pp. 443-446). (AIP Conference Proceedings; Vol. 1388). https://doi.org/10.1063/1.3647427