Role of the Final-State Interaction and Three-Body Force on the Longitudinal Response Function of {sup 4}He

Journal Article · Fri Apr 24 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.162501· OSTI ID:21316636

Bacca, Sonia ^[1]; Barnea, Nir ^[2]; Leidemann, Winfried; Orlandini, Giuseppina ^[3]

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1. TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C. V6J 2A3 (Canada)
2. Racah Institute of Physics, Hebrew University, 91904, Jerusalem (Israel)
3. Dipartimento di Fisica, Universita di Trento and INFN (Gruppo Collegato di Trento), via Sommarive 14, I-38100 Trento (Italy)

We present an ab initio calculation of the longitudinal electron scattering response function off {sup 4}He 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 500 MeV/c. Its effect increases significantly at lower q, up to about 40% at q=100 MeV/c. At very low q, however, data are missing.

• OSTI ID: 21316636
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRON DIFFRACTION
ELECTRONS
FINAL-STATE INTERACTIONS
FOUR-BODY PROBLEM
HELIUM 4
INTEGRAL TRANSFORMATIONS
MEV RANGE 100-1000
MOMENTUM TRANSFER
NUCLEONS
RESPONSE FUNCTIONS
THREE-BODY PROBLEM