arXiv:hep-ph/9703406·v2·High Energy Physics — Phenomenology
Nucleon Vector Strangeness Form Factors: Multi-pion Continuum and the OZI Rule
H.-W. Hammer (1 and 2)🇺🇸 · M.J. Ramsey-Musolf (1 and 3) ((1) INT, U. of Washington, (2) Inst. f. Kernphysik, U. Mainz, (3) U. of Connecticut)🇺🇸
Abstract
We estimate the 3 \pi continuum contribution to the nucleon strange quark vector current form factors, including the effect of a 3 \pi <----> \rho \pi resonance. We find the magnitude of this OZI-violating contribution to be comparable to that of typical OZI-allowed contributions. We also study the isoscalar electromagnetic form factors, and find that the presence of a \rho \pi resonance in the multi-pion continuum may generate an appreciable contribution.
Comments: 18 pages, LaTex, 4 PS figures, uses epsf.sty, rotate.sty, revised to include 3\pi -> \omega resonance and e^+ e^- data