TY - JOUR
T1 - Narrow three-meson resonances
AU - Garcilazo, Humberto
AU - Mathelitsch, Leopold
N1 - Funding Information:
This work was supported in part (H.G.) by the German Federal ministry for Research and Technology ( BMFT contract number MEP 0234 HAA ).
PY - 1990/1/11
Y1 - 1990/1/11
N2 - A three-body isobar model of type proposed by Aaron, Amado and Young is applied to the πππ-and ππη-systems in the channels with the quantum numbers of the ω- and η′-resonances, respectively. Using as two-body input separable potentials, which reproduce the wide resonances of the ππ-and πη-subsystems, the model predicts in a natural way the masses and, moreover, the very narrow widths of the ω- and η′-mesons. There are indications that our finding of a relation between the mass and the width of a resonance works also for resonances with higher mass. Our results also imply that the conjectured stable πNN bound state with isospin 2 does not exist.
AB - A three-body isobar model of type proposed by Aaron, Amado and Young is applied to the πππ-and ππη-systems in the channels with the quantum numbers of the ω- and η′-resonances, respectively. Using as two-body input separable potentials, which reproduce the wide resonances of the ππ-and πη-subsystems, the model predicts in a natural way the masses and, moreover, the very narrow widths of the ω- and η′-mesons. There are indications that our finding of a relation between the mass and the width of a resonance works also for resonances with higher mass. Our results also imply that the conjectured stable πNN bound state with isospin 2 does not exist.
UR - http://www.scopus.com/inward/record.url?scp=0347445148&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(90)91921-W
DO - 10.1016/0370-2693(90)91921-W
M3 - Artículo
SN - 0370-2693
VL - 234
SP - 243
EP - 247
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3
ER -