Δ(1232) axial charge and form factors from lattice QCD

Δ(1232) axial charge and form factors from lattice QCD

We present the first calculation on the Δ axial vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined. A combined chiral fit is performed to the nucleon axial charge, N to Δ axial transition coupling constant and Δ axial charge.

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Veröffentlicht in:Physical review letters 2011-09, Vol.107 (14), p.141601-141601, Article 141601
Hauptverfasser: Alexandrou, Constantia, Gregory, Eric B, Korzec, Tomasz, Koutsou, Giannis, Negele, John W, Sato, Toru, Tsapalis, Antonios
Format: Artikel
Sprache:eng
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Zusammenfassung:We present the first calculation on the Δ axial vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined. A combined chiral fit is performed to the nucleon axial charge, N to Δ axial transition coupling constant and Δ axial charge.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.107.141601