arXiv:nucl-th/0306014·v1·Nuclear Theory
Breit - Wigner parameters of nucleon resonance S11(1535)
E.V.Balandina🇷🇺 · E.M.Leikin🇷🇺 · N.P. Yudin🇷🇺
Abstract
The result of partial - wave analysis of angular distributions for the process gamma+p -> eta +p at the energies upto 2 GeV are given. From the energy dependence of the regression coefficient a0(W) the reliable estimates of Breit - Wigner parameters of S11(1535) - resonance and energy dependence of real and imagenery parts of electric dipol amplitude E0+ and its phase were obtained
Comments: 12 pages, 11 figures