Extrapolating ([ital e],[ital e][prime][ital p]) to ([ital e],[ital e][prime])

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.350· OSTI ID:7103813

Weinstein, L B ^[1]; Warren, G A ^[2]

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1. Department of Physics, Old Dominion University, Norfolk, Virginia 23529 (United States)
2. Department of Physics, Laboratory for Nuclear Science and Bates Accelerator Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Unexplained anomalies in quasielastic ([ital e],[ital e][prime]) measurements motivated ([ital e],[ital e][prime][ital p]) experiments to determine the reaction mechanisms (single-nucleon knockout, multinucleon knockout, delta production, etc.) involved in quasielastic electron scattering. In this paper we use various models to extrapolate from C([ital e],[ital e][prime][ital p]) measurements, where an outgoing proton is detected in a small solid angle centered around the virtual photon angle, to C([ital e],[ital e][prime]) measurements, which integrate over all knockedout particles at all angles. Extrapolated single nucleon knockout ([ital p] and [ital s] shell) only accounts for 25% of the ([ital e],[ital e][prime]) cross section in the dip region and only 40--60 % in the quasielastic region. This indicates that the quasielastic'' region has a large nonquasielastic component. Various multinucleon knockout models (two-nucleon correlations, six-quark bags, and qualitative final state rescattering) are compared to C([ital e],[ital e][prime][ital p]) missing energy spectra and to the difference between the ([ital e],[ital e][prime]) cross section and the extrapolated single-nucleon knockout; none completely describe the data.

• DOE Contract Number: AC02-76ER03069
• OSTI ID: 7103813
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663120 -- Nuclear Structure Models & Methods-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663420* -- Lepton-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CHARGED-PARTICLE REACTIONS
DIRECT REACTIONS
ELECTRON REACTIONS
ELEMENTARY PARTICLES
EXTRAPOLATION
FERMIONS
HADRONS
INELASTIC SCATTERING
KNOCK-OUT REACTIONS
LEPTON REACTIONS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL SOLUTION
PROTONS
QUASI-ELASTIC SCATTERING
QUASI-FREE REACTIONS
SCATTERING
SPECTROSCOPIC FACTORS