Title:
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Disentangling the Dynamical Origin of P11 Nucleon Resonances
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Author:
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Suzuki, N.; Juliá-Díaz, Bruno; Kamano, H.; Lee, T. S. H.; Matsuyama, A.; Sato, T.
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Other authors:
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Universitat de Barcelona |
Abstract:
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We show that two almost degenerate poles near the π Δ threshold and the next higher mass pole in the P 11 partial wave of π N scattering evolve from a single bare state through its coupling with π N , η N , and π π N reaction channels. This finding provides new information on understanding the dynamical origins of the Roper N ∗ ( 1440 ) and N ∗ ( 1710 ) resonances listed by Particle Data Group. Our results for the resonance poles in other π N partial waves are also presented. |
Subject(s):
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-Física de partícules -Massa (Física) -Particle physics -Mass (Physics) |
Rights:
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(c) American Physical Society, 2010
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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