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Multiple solutions in extracting physics information from experimental data


Multiple solutions exist in many experimental situations when several interfering amplitudes are summed to fit experimentally measured distributions, such as cross sections, mass spectra, and/or the angular distributions. We show a few examples where multiple solutions are found, but only one solution is reported in the publications. Since there is no standard rule for choosing one among the solutions as the physics one, we propose a simple rule that agrees with what has been adopted in previous literatures: the solution corresponding to the minimal magnitudes of the amplitudes must be the physical solution. We suggest test this rule in the future analyses.
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Recommended references: C. Z. Yuan,X. H. Mo,P. Wang.(2017).Multiple solutions in extracting physics information from experimental data.[ChinaXiv:201703.00611] (Click&Copy)
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[V1] 2017-03-26 19:36:59 chinaXiv:201703.00611V1 Download
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