arXiv:1106.6000·v1·High Energy Physics — Lattice
The axial charge and form factors from lattice QCD
C. Alexandrou (Univ. of Cyprus & Cyprus Inst.)🇨🇾 · E. B. Gregory (Univ. of Cyprus)🇨🇾 · T. Korzec (Humboldt Univ. Berlin)🇩🇪 · G. Koutsou (Cyprus Inst.)🇨🇾 · J. W. Negele (MIT)🇺🇸 · T. Sato (Osaka Univ.)🇯🇵 · A. Tsapalis (Hellenic Naval Acad. & National Tech. Univ. of Athens)🇬🇷
Abstract
We present the first calculation on the 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 axial transition coupling constant and axial charge.
Comments: 5 pages, 4 figures