The role of the Roper in chiral perturbation theory
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Data
2011-11-01
Autores
Long, Bingwei
van Kolck, U. [UNESP]
Título da Revista
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Título de Volume
Editor
Elsevier B.V.
Resumo
We include the Roper excitation of the nucleon in a version of heavy-baryon chiral perturbation theory recently developed for energies around the delta resonance. We find significant improvement in the P(11) channel. (C) 2011 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Chiral perturbation theory, Effective field theory, The Roper resonance
Como citar
Nuclear Physics A. Amsterdam: Elsevier B.V., v. 870-71, p. 72-82, 2011.