The s-wave scattering lengths for the pion - proton interaction
- 1 February 1965
- journal article
- Published by IOP Publishing in Proceedings of the Physical Society
- Vol. 85 (2), 257-265
- https://doi.org/10.1088/0370-1328/85/2/307
Abstract
From an analysis of charge exchange and elastic scattering of 35 MeV negative pions using a liquid hydrogen bubble chamber, the charge-exchange total cross section is found to be 5.61 ± 0.40 mbn and the s-wave scattering lengths a1 = +0.187 ± 0.009 a3 = -0.082 ± 0 011 in units of = c = mπ = 1. The quantity a1 - a3 is found by a method free from systematic error and independent of Coulomb corrections. It is compared with that of the analysis of pion-proton scattering data, using dispersion relations, by Hamilton and Woolcock. The agreement is reasonable.Keywords
This publication has 7 references indexed in Scilit:
- Determination of Pion-Nucleon Parameters and Phase Shifts by Dispersion RelationsReviews of Modern Physics, 1963
- Low-Energy Pion PhenomenaPhysical Review B, 1960
- Systematic track distortion in a 10 in. diameter liquid hydrogen bubble chamberPhilosophical Magazine, 1960
- Pion-Proton Scattering below 150 Mev. IPhysical Review B, 1960
- A note on the apparent inconsistency among measurements of threshold pion interactionsIl Nuovo Cimento (1869-1876), 1958
- Differential cross-sections for photoproduction of positive pions in hydrogenIl Nuovo Cimento (1869-1876), 1956
- A Diffusion Cloud-Chamber Study of Pion Interactions in Hydrogen and HeliumPhysical Review B, 1953