Role of the final-state interaction and three-body force on the longitudinal response function of He4

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

We present an ab initio calculation of the longitudinal electron scattering response function off He4 with two- and three-nucleon forces and compare to experimental data. The full four-body continuum dynamics is considered via the Lorentz integral transform method. The importance of the final-state interaction is shown at various energies and momentum transfers q. The three-nucleon force reduces the quasielastic peak by 10% for q between 300 and 500MeV/c. Its effect increases significantly at lower q, up to about 40% at q=100MeV/c. At very low q, however, data are missing.

Original languageEnglish
Article number162501
JournalPhysical Review Letters
Volume102
Issue number16
DOIs
StatePublished - 22 Apr 2009

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