Journal article
Pion-nucleon scattering: The P11 channel
Abstract
A simple model is presented for the πN scattering in the P11 channel from the threshold to the Roper resonance N(1470). The model starts with the πBB′ coupling of the Yukawa type where B (and B') stands for N, R or Δ. A unitarized scattering amplitude is constructed from the K-matrix which is obtained perturbatively. With appropriate coupling constants and form factors for the πBB′ interactions, which conform to the quark model, the P11 …
Authors
Akira S; Nogami Y; Ohtsuka N
Journal
Nuclear Physics A, Vol. 395, No. 2, pp. 301–312
Publisher
Elsevier
Publication Date
March 1983
DOI
10.1016/0375-9474(83)90045-3
ISSN
0375-9474