Forward-angle cross sections for pion-nucleon charge exchange between 100 and 150 MeV/c
- 1 August 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 34 (2), 619-626
- https://doi.org/10.1103/physrevc.34.619
Abstract
The differential cross sections for the πN charge-exchange reaction, p→n, have been measured in an angular range corresponding to 0.99≥cos at 100.6, 106.7, 113.4, 125.2, 130.9, 136.4, and 147.1 MeV/c. A striking feature of the charge-exchange reaction at forward angles is the presence of a deep minimum near 120 MeV/c, caused by interference between s- and p-wave scattering. The parameters of this minimum, of interest both intrinsically and for applications to π-nucleus single- and double-charge-exchange reactions, are well determined by the measurements. Our data are compared with the results of existing partial-wave analyses, and the data are discussed in terms of the isospin-odd, s-wave scattering length, -.
Keywords
This publication has 20 references indexed in Scilit:
- Energy and Mass Dependence of Low-Energy Pion Single Charge Exchange to the Isobaric Analog StatePhysical Review Letters, 1985
- Pion-nucleon partial-wave analysis to 1100 MeVPhysical Review D, 1985
- Radiative capture and charge exchange of negative pions on protons at 26.4 and 39.3 MeVNuclear Physics A, 1984
- Low-energy πN partial wave analysisNuclear Physics A, 1980
- Isospin-violating mass differences and mixing angles: The role of quark massesPhysical Review D, 1980
- Isospin violation in πN scattering from π0−η mixingPhysics Letters B, 1979
- Energy-dependent phase shift analysis of pion-nucleon scattering below 400 MeVPhysical Review C, 1978
- A measurement of the pion-nucleon charge-exchange reaction π−+p→π°+n at 22.6, 32.9 and 42.6 MeVPhysics Letters B, 1973
- Dispersion theory of low-energy limitsAnnals of Physics, 1968
- Pion Scattering LengthsPhysical Review Letters, 1966