Isocalar Roper excitation in the pp --> pp pi0 reaction close to threshold
Nuclear Theory
2009-10-31 v1
Abstract
A new mechanism for the pp --> pp pi0 reaction close to threshold is suggested coming from the isoscalar excitation of the Roper and its decay into N(pi pi)S-wave, with one of the pi0 emitted and the other one reabsorbed on the second nucleon. The mechanism can lead to important interference with other mechanisms and, together with experiment, serves to exclude large ranges of the 2pi N* decay parameters allowed by the N* partial decay widths.
Keywords
Cite
@article{arxiv.nucl-th/9808017,
title = {Isocalar Roper excitation in the pp --> pp pi0 reaction close to threshold},
author = {E. Hernandez and E. Oset},
journal= {arXiv preprint arXiv:nucl-th/9808017},
year = {2009}
}
Comments
11 LaTeX pages, 4 postscript figures