Mostra el registre complet de l'element
Roca Zamora, Luis; Oset Báguena, Eulogio; Vicente Vacas, Manuel José | |||
Aquest document és un/a article, creat/da en: 2002 | |||
|
|||
We present theoretical results for (gamma, pi(0)pi(0)) production on nucleons and nuclei in the kinematical region where the scalar isoscalar pipi amplitude is influenced by the a pole. The final-state interaction of the pions modified by the nuclear medium produces a spectacular shift of strength of the two pion invariant mass distribution induced by the moving of the sigma pole to lower masses and widths as the nuclear density increases. | |||
Veure al catàleg Trobes | |||