Author/Authors :
Buonomo، نويسنده , , E. and Gianturco، نويسنده , , F.A. and Schneider، نويسنده , , F. and De Lara-Castells، نويسنده , , P. and Delgado-Barrio، نويسنده , , G. and Miret-Artés، نويسنده , , S. and Villarreal، نويسنده , , P.، نويسنده ,
Abstract :
Highly correlated calculations of the collinear, symmetric break-up of helium trimer ions are carried out using an MRD-CI expansion and over a broad range of fragment relative distances. The general features of the lower roots of Σg, Σu, Πg, and Πu symmetries are analysed in relation to recent experimental findings and are found to provide an explanation for the observed behaviour of the experimental fragmentation peaks.