Phenomenological interpretation of low-energy pion-nucleon scattering
Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields(2008)
摘要
Summary Experimental results on pion-nucleon scattering near threshold are analysed in terms of a potential interaction. Radii and
depths are presented and discussed in the square-well approximation. It turns out that extrapolation of theP
11-amplitude at negative energies is consistent with a bound state showing the properties of the well-known nucleon state.
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关键词
phase shift,bound states
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