Disentangling the dynamical origin of P11 nucleon resonances

We show that two almost degenerate poles near the piDelta threshold and the next higher mass pole in the P11 partial wave of piN scattering evolve from a single bare state through its coupling with piN, etaN, and pipiN reaction channels. This finding provides new information on understanding the dyn...

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Veröffentlicht in:	Physical review letters 2010-01, Vol.104 (4), p.042302-042302
Hauptverfasser:	Suzuki, N, Juliá-Díaz, B, Kamano, H, Lee, T-S H, Matsuyama, A, Sato, T
Format:	Artikel
Sprache:	eng
Schlagworte:	Física de partícules Mass (Physics) Massa (Física) N-1440 BARYONS NUCLEONS PARTIAL WAVES Particle physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS RESONANCE
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