Nucleon resonances and the quark model
Abstract
We study the level ordering of the nucleon resonances in the non-relativistic quark model. With any plausible phenomenological potential, the orbital excitation with negative parity always turns out to have the lowest mass contrary to the experimental situation where the Roper resonance with positive parity comes first.
- Publication:
-
Physics Letters B
- Pub Date:
- May 1983
- DOI:
- 10.1016/0370-2693(83)91565-4
- Bibcode:
- 1983PhLB..124..520H