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Chiral symmetry constraints on resonant amplitudes

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Bruns, Peter C. ; Mai, Maxim
Date of publication of this fulltext: 27 Apr 2018 09:24


We discuss the impact of chiral symmetry constraints on the quark-mass dependence of meson resonance pole positions, which are encoded in non-perturbative parametrizations of meson scattering amplitudes. Model-independent conditions on such parametrizations are derived, which are shown to guarantee the correct functional form of the leading quark-mass corrections to the resonance pole positions. ...


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