Double pion photoproduction on the nucleon: Study of the isospin channels
NAGIOS: RODERIC FUNCIONANDO

Double pion photoproduction on the nucleon: Study of the isospin channels

DSpace Repository

Double pion photoproduction on the nucleon: Study of the isospin channels

Show full item record

View       (492.4Kb)

    
Gómez Tejedor, José Antonio; Oset Báguena, Eulogio Perfil
This document is a artículoDate1996

Este documento está disponible también en : http://hdl.handle.net/10550/46863
A model for the gamma p ----> pion+ pion- p reaction developed earlier is extended to account for all isospin channels. The model includes N, Delta(1232), N^*(1440) and N^*(1520) as intermediate baryonic states and the rho-meson as an intermediate two pion resonance. Although many terms contribute to the cross section, some channels exhibit particular sensitivity to certain mechanisms of resonance excitation or decay and the reactions provide novel information on such mechanisms. In particular the gamma N ----> N^*(1520) ----> Delta(1232) pion process affects all the channels and is a key ingredient in the interpretation of the data. Comparison is made with all available data and the agreement is good in some channels. The remaining discrepancies in some other channels are discussed.

    Gómez Tejedor, José Antonio Oset Báguena, Eulogio 1996 Double pion photoproduction on the nucleon: Study of the isospin channels Nuclear Physics A 600 4 413 435
http://dx.doi.org/10.1016/0375-9474(95)00492-0

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse

Statistics