Remarks on calculating the pion-nucleus first-order optical potential |
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Authors: | T-SH Lee |
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Institution: | Argonne National Laboratory, Argonne, Illinois 60439, USA |
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Abstract: | It is shown that the factorization approximation should not be used in any serious theoretical effort to calculate the first order optical potential for low energy π-nucleus scattering. In contrast to earlier work, the required off-shell πN t matrix for non-zero total momentum is consistently evaluated using relativistic particle quantum mechanics. |
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