Roper + Pion decays as a test of the radial resonances wavefunction

2006/10/17 by Pierre M Stassart, Pierre Stassart, Stassart, Pierre
Engineering · Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications #nucl-th

paper · pdf · doi:10.48550/arxiv.nucl-th/0610065

7 pages

arxiv created 2006/10/17 · openalex publication_date 2006/10/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate the decays of baryon resonances to the pion + Roper resonance channel in the frame of the flux-tube breaking model. The baryon and meson wavefunctions we use are obtained from a linear confinement semi-relativistic constituent quark model. The results, in good agreement with the existing data, provide a spectrum independant test on the radial form of the main component of the Roper resonance. They shed light on a likely orbital nature for the second delta resonance.

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