Systematics of low-energy πN scattering |
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| Authors: | MG Olsson ET Osypowski |
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| Institution: | Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA;Department of Physics, University of Wisconsin, Marathon County Campus, Wausau, Wisconsin 54401, USA |
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| Abstract: | A simple current algebra model is shown to account for a wide range of low-energy πN experimental data including twenty-eight subthreshold expansion coefficients, six scattering lengths, and the scattering phase shifts below Tπ = 300 MeV. A sigma term of σNN = 62 ± 10 MeV is obtained. |
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