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The Roper resonance as a meson-baryon molecular state (1812.02043v1)
Published 5 Dec 2018 in hep-ph and nucl-th
Abstract: The recently proposed mechanism for the formation of the Roper resonance, in which a dynamically generated state as well as a genuine three-quark resonant state play an equally important role, is confronted with the model proposed almost twenty years ago in which the Roper is pictured as a molecular state of the nucleon and the $\sigma$ meson.
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