The (pi(-), gamma gamma) reaction in nuclei and the sigma meson in the medium
NAGIOS: RODERIC FUNCIONANDO

The (pi(-), gamma gamma) reaction in nuclei and the sigma meson in the medium

DSpace Repository

The (pi(-), gamma gamma) reaction in nuclei and the sigma meson in the medium

Show full item record

View       (254.4Kb)

    
Roca Zamora, Luis; Oset Báguena, Eulogio Perfil
This document is a artículoDate2003

Este documento está disponible también en : http://hdl.handle.net/10550/46955
A theoretical analysis of the (π−,γγ) reaction in nuclei is made in order to find the viability of this reaction to test modifications of the σ meson mass in nuclear matter. The ππ correlation in the scalar-isoscalar channel in nuclear matter could, in principle, manifest itself in this reaction since it plays an important role in the ππ→γγ mechanism. But we conclude that this effect is hardly visible in this reaction due to the strong background of the pion-Bremsstrahlung terms. Only with some special cuts and for some polarization states are the effect visible at the cost of a strong reduction in the cross section.

    Roca Zamora, Luis Oset Báguena, Eulogio 2003 The (pi(-), gamma gamma) reaction in nuclei and the sigma meson in the medium Nuclear Physics A 723 1-2 129 144
http://dx.doi.org/10.1016/S0375-9474(03)01090-X

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse

Statistics