Photoabsorption on He4 with a realistic nuclear force

Doron Gazit*, Sonia Bacca, Nir Barnea, Winfried Leidemann, Giuseppina Orlandini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

The He4 total photoabsorption cross section is calculated with the realistic nucleon-nucleon potential Argonne V18 and the three-nucleon force (3NF) Urbana IX. Final state interaction is included rigorously via the Lorentz integral transform method. A rather pronounced giant resonance with peak cross sections of 3.0 (3.2) mb is obtained with (without) the 3NF. Above 50 MeV strong 3NF effects, up to 35%, are present. Good agreement with experiment is found close to threshold. A comparison in the giant resonance region is inconclusive, since data do not show a unique picture.

Original languageAmerican English
Article number112301
JournalPhysical Review Letters
Volume96
Issue number11
DOIs
StatePublished - 2006

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