FIZIKA B 8 (1999) 1, 153-164

USE OF REALISTIC INTERACTIONS TO CALCULATE nt-nt,dd-pt AND dd-dd SCATTERING OBSERVABLES

ANTUNIO C. FONSECA

Centro de Física Nuclear da Universidade de Lisboa, Av. Prof. Gama Pinto, No. 2,
1699 Lisboa, Codex, Portugal

Received 5 January 1999; Accepted 7 June 1999

The four-body equations of Alt, Grassberger and Sandhas are solved for a system of four nucleons, using realistic NN interactions in channels ¹S₀, ³S₁-³D₁, ¹P₁, ³P₀, ³P₁ and ³P₂. The results of the calculation are compared with data for the reactions dd®dd, dd®p³H and n³H®n³H. The calculations indicate that the nucleon-nucleon p-waves have a strong effect on 4N observables, but one finds some disagreement with data that indicates a possible failure of known realistic interactions.

PACS numbers: 21.45.+v, 25.10.+s
UDC 539.128, 539.142, 539.17

Keywords: nuclear system of four nucleons, realistic NN interactions, channels ¹S₀, ³S₁-³D₁, ¹P₁, ³P₀, ³P₁ and ³P₂, reactions dd®dd, dd®p³H and n³H®n³H

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