Theoretical Analysis of Pion-nucleon Scattering
نویسندگان
چکیده
منابع مشابه
Effect of Pion-Pion Scattering Resonance on Nucleon Structure and Pion-Nucleon Scattering at Low Energies
The effect of pion-pion scattering resonance on the isovector part of nucleon structure is analysed by a method similar to that of Frazer and Fulco, but with one more subtraction for dispersion relations on helicity amplitudes of nucleon·aritinucleon production process in order to remedy the divergence regarding the left-hand cut. If the subtracted spectral representations are used for the form...
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An analysis of low-energy charged pion-nucleon data from recent pp experiments is presented. From the scattering lengths and the Goldberger-Miyazawa-Oehme ~GMO! sum rule we find a value of the pion-nucleon coupling constant of f 50.075660.0007. We also find, contrary to most previous analyses, that the scattering volumes for the P31 and P13 partial waves are equal, within errors, corresponding ...
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I discuss low–energy pion–nucleon scattering in the framework of chiral perturbation theory. I argue that using this theoretical method one is able to match the in some cases impressive experimental accuracy (for the low partial waves). I then show how strong and electromagnetic isospin violation can be treated simultaneously. Some first results for neutral pion scattering and the σ–term are gi...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1954
ISSN: 0033-068X
DOI: 10.1143/ptp.12.79