Improved description of the Roper resonance in a constituent quark model
- 1 February 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 41 (3) , 916-919
- https://doi.org/10.1103/physrevd.41.916
Abstract
Within a semirelativistic constituent quark model based on linear confinement, we propose a new radial form for the main component of the Roper resonance. This lowers its position by about 100 MeV compared to previous studies, where the radial excitation was of harmonic-oscillator type, and brings it much closer to the experiment.Keywords
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