arXiv:0910.5617·v1·High Energy Physics — Lattice
N to Delta transition form factors with Nf=2+1 domain wall fermions
C. Alexandrou (Univ. of Cyprus & The Cyprus Institute)🇨🇾 · G. Koutsou (Univ. of Wuppertal/Forschungszentrum Juelich)🇩🇪 · J. W. Negele (MIT)🇺🇸 · A. O'Cais (The Cyprus Institute)🇨🇾 · Y. Proestos (The Cyprus Institute)🇨🇾 · A. Tsapalis (IASA and Hellenic Naval Academy)🇬🇷
Abstract
The electromagnetic, axial and pseudoscalar nucleon to Delta form factors are calculated using dynamical domain wall fermions at a lattice spacing of a = 0.114 fm on a lattice of spatial size 2.74 fm and pion mass of 331 MeV. Pion pole dominance and the Goldberger-Treiman relations are examined.
Comments: 8 pages, 8 figures, Presented at the XXVII International Symposium on Lattice Field Theory, LATTICE 2009, July 26-31, 2009, Peking University, Beijing, China