Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1998-04-29
Phys.Lett. B431 (1998) 270-276
Physics
Nuclear Physics
Nuclear Theory
14 pages, 4 figures (7 postscript files). Some referencess added
Scientific paper
10.1016/S0370-2693(98)00574-7
We study the electromagnetic transitions of the Roper N(1440) resonance. Our results, when combined with the previously obtained for the mass and the pionic strong decay widths of the Roper, show that within a non-relativistic constituent quark model scheme, a comprehensible understanding of the Roper phenomenology can be achieved. They also seem to support the view of the Roper as a radial excitation of the nucleon, though more experimental data are needed to reach a definitive conclusion.
Cano Felipe
Gonzalez Pablo
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