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Mass and width of the Roper resonance using complex-mass renormalization
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✦ hep-ph
keywords
masscomplex-massrenormalizationresonanceroperwidthapplyingcalculated
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The pole mass and the width of the Roper resonance are calculated as functions of the pion mass in the framework of low-energy effective field theory of the strong interactions. We implement a systematic power-counting procedure by applying the complex-mass renormalization scheme.
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