Pion Cloud and Nucleon Mass in Finite Nuclei
| dc.creator | Harey, Andrew J. | |
| dc.creator | Kisslinger, Leonard S. | |
| dc.date | 2000-05-01 | |
| dc.date.accessioned | 2026-07-07T05:38:03Z | |
| dc.date.available | 2026-07-07T05:38:03Z | |
| dc.description | We study the mass of a nucleon in a nucleus using a model recently introduced for a nucleon current with a pion cloud component. The method of QCD sum rules is used to determine the mass shifts for nucleons to first order in nuclear density in oxygen-16 and calcium-40, with the pion propagator determined by an optical potential for pion-nucleus scattering. Mass shifts due to the pionic contributions range from negligible in oxygen to -100 MeV in calcium at central nuclear density, with larger shifts in the nuclear surface. The consistency of this model with chiral perturbation theory is demonstrated. | |
| dc.description | 19 pages, 14 figures, revtex, epsf | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0005005 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0005005 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/81486 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Pion Cloud and Nucleon Mass in Finite Nuclei | |
| dc.type | text |