NAGIOS: RODERIC FUNCIONANDO

Renormalization of the f(0)(980) and a(0)(980) scalar resonances in a nuclear medium

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Renormalization of the f(0)(980) and a(0)(980) scalar resonances in a nuclear medium

Mostra el registre complet de l'element

Visualització (295.8Kb)

Oset Báguena, Eulogio; Vicente Vacas, Manuel José

Aquest document és un/a article, creat/da en: 2000

The meson-meson interaction in the scalar sector in the presence of a nuclear medium is studied with particular attention to the change of the properties of the f(0)(980) and a(0)(980) resonances. By using a chiral unitary approach which generates the f(0) and a(0) resonances and reproduces their free properties, we find that the position of the resonances in the medium is barely changed but their widths are considerably broadened. New many body corrections generating from higher orders in the chiral Lagrangian plus the contribution from N*h excitations, not considered before in connection with the pi pi interaction in the nuclear medium, are also investigated.

Veure al catàleg Trobes