Model-independent resonance parameter extraction using the trace of K and T matrices
classification
✦ hep-ph
keywords
matricesmatrixmethodmodel-independentresonancetraceanalyzingbasis
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A model-independent method for the determination of Breit-Wigner resonance parameters is presented. The method is based on eliminating the dependence on the choice of channel basis by analyzing the trace of the K and T matrices in the coupled-channel formalism, rather than individual matrix elements of the multichannel scattering matrix.
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