Determination of the N N pi coupling constants in N N partial wave analyses
Jul, 19919 pages
Published in:
- Phys.Rev.C 44 (1991) R1258-R1261
Report number:
- THEF-NYM-91-07
Citations per year
Abstract: (APS)
The NNπ coupling constants are extracted in NN partial-wave analyses. The data base contains all pp and np scattering data below Tlab=350 MeV. Introducing different coupling constants at the different NNπ vertices, at the pion pole we find for the ppπ0 coupling fp2=0.0751(6), for the nnπ0 coupling fn2=0.075(2), and for the charged-pion coupling fc2=0.0741(5). These results allow only small charge-independence-breaking effects in the NNπ coupling constants. If we assume charge independence, we find f2=0.0749(4). The value found for fc2 is in agreement with the determination in a recent VPI&SU; analysis of the πN scattering data, and with its determination in an analysis of the charge-exchange reaction p¯p→n¯n.- nucleon nucleon: inelastic scattering
- inelastic scattering: nucleon nucleon
- partial wave analysis
- coupling constant: (2p pi)
- (2p pi): coupling constant
- coupling constant: (2n pi)
- (2n pi): coupling constant
- numerical calculations: interpretation of experiments
- 0.35 GeV
References(0)
Figures(0)
Loading ...