Multiple solutions in extracting physics information from experimental data

Details Multiple solutions in extracting physics information from experimental data Multiple solutions in extracting physics information from experimental data

2009-11-25

arxiv.org/abs/0911.4791v1

Int.J.Mod.Phys.A25:5963-5972,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 3 figures

Scientific paper

10.1142/S0217751X10051153

Multiple solutions exist in various experimental situations whenever the sum of several amplitudes is used to fit the experimentally measured distributions, such as the cross section, the mass spectrum, or the angular distribution. We show a few examples where multiple solutions were found, while only one solution was reported in the publications. Since there is no existing rules found in choosing any one of these solutions as the physics one, we propose a simple rule which agrees with what have 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 experiments.

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