Two-nucleon spectral function of {sup 16}O at high momenta

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.1144· OSTI ID:383325

Geurts, W J; Allaart, K ^[1]; Dickhoff, W H ^[2]; Muether, H ^[3]

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1. Department of Physics and Astronomy, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam (The Netherlands)
2. Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)
3. Institut fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

A procedure for the calculation of the two-body spectral function of a finite nucleus is presented. This spectral function is used to calculate the longitudinal part of the {sup 16}O({ital e},{ital e}{sup {prime}}{ital pp}) cross section assuming plane waves for the outgoing nucleons. Short-range correlation effects are included in the pair-removal amplitudes by adding corresponding defect wave functions that are obtained from the solution of the Bethe-Goldstone equation in the finite nucleus. The associated {ital G} matrix is used as the effective interaction in a large but finite model space to calculate the pair-removal amplitudes in a random-phase approach. The resulting spectral functions exhibit clear differences between different realistic interactions in the momentum range 2{endash}5 fm{sup {minus}1} for the initial proton momenta. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 383325
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 54; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BETHE-GOLDSTONE EQUATION
CORRELATIONS
CROSS SECTIONS
ELECTRON REACTIONS
ELECTRONS
G MATRIX
NUCLEONS
OXYGEN
OXYGEN 16
PROTONS
RANDOM PHASE APPROXIMATION
SPECTRAL FUNCTIONS
WAVE FUNCTIONS