Deformation of the nucleon and delta in excited states
- 25 February 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 54 (8) , 745-748
- https://doi.org/10.1103/physrevlett.54.745
Abstract
A quark model for baryons, in which the valence quarks are moving in a deformable mean field, is considered. A q-q interaction, consisting of one-gluon-exchange and one-pion-exchange potentials, is diagonalized exactly in the model space of deformed orbitals. With four model parameters, the masses of both the even- and odd-parity states and the radiative transition amplitudes for the L=0 excited states are obtained in fair agreement with experiment.Keywords
This publication has 9 references indexed in Scilit:
- Rotational bands in the baryon spectrum. IIPhysical Review D, 1984
- Quark axial coupling quenching and nucleon coupling constantsPhysics Letters B, 1984
- A potential quark model with a cloudPhysics Letters B, 1984
- Rotational bands in the baryon spectrumPhysical Review D, 1984
- Review of particle propertiesReviews of Modern Physics, 1984
- A quark model of baryons with natural flavorThe European Physical Journal C, 1983
- Incorporating pion effects into the naive quark modelPhysical Review D, 1982
- Is theResonance Evidence for New Baryonic Degrees of Freedom?Physical Review Letters, 1980
- -wave baryons in the quark modelPhysical Review D, 1978