Vacuum effects on the properties of nuclear matter under an external magnetic field
The effects of the Dirac sea of the nucleons are investigated within a covariant model of the hadronic interaction. I extend the usual Mean Field Approximation and present a procedure to deal with divergences which are proportional to polynomials on the magnetic field intensity. For this purpose a n...
Guardado en:
| Autor principal: | |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/124888 |
| Aporte de: |
| Sumario: | The effects of the Dirac sea of the nucleons are investigated within a covariant model of the hadronic interaction. I extend the usual Mean Field Approximation and present a procedure to deal with divergences which are proportional to polynomials on the magnetic field intensity. For this purpose a nucleon propagator is used which takes account of the full effect of the magnetic field as well as the presence of the anomalous magnetic moments of both protons and neutrons. I examine single-particle properties and bulk thermodynamical quantities and conclude that within a reasonable range of densities and magnetic intensities the effects found are moderate. |
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