Quasielastic reaction mechanism studied using the reaction sup 12 C( e , e prime p )

Journal Article · Mon Apr 02 04:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.1646· OSTI ID:6828121

Weinstein, L B; Baghaei, H; Bertozzi, W; Finn, J M; Glickman, J; Hyde-Wright, C E; Kalantar-Nayestanaki, N; Lourie, R W; Nelson, J A; Sapp, W W; Sargent, C P; Ulmer, P E; Cottman, B H; Ghedira, L; Winhold, E J; Calarco, J R; Wise, J; Boberg, P; Chang, C C; Zhang, D ; Aniol, K; Epstein, M B; Margaziotis, D J; Perdrisat, C; Punjabi, V ^[1]

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1. Department of Physics; Massachusetts Institute of Technology; Cambridge; Massachusetts 02139 (USA) Department of Physics; Rensselaer Polytechnic Institute; Troy; New York 12181 (USA) Department of Physics; University of New Hampshire; Durham; New Hampshire 03824 (USA) Department of Physics and Astronomy; University of Maryland; College Park; Maryland 20742 (USA) Department of Physics Astronomy; California State University; Los Angeles; California 90032 (USA) Department of Physics; College of William and Mary; Williamsburg; Virginia 23185 (USA)

We have measured missing-energy spectra for the reaction {sup 12}C({ital e},{ital e}{prime}{ital p}) in the quasielastic region in parallel kinematics at momentum transfers {ital q} of 585, 775, and 827 MeV/{ital c}. We observed {sup 1}{ital p} and {sup 1}{ital s} single-proton knockout peaks and large broad strength attributed to multinucleon knockout. We saw no increase in strength at pion threshold. The ratio of single-particle knockout to a distorted-wave impulse-approximation calculation is approximately constant with {ital q}. Multinucleon knockout is 25%--40% of the total cross section; it increases with {ital q}. This quasielastic non-single-nucleon knockout is much stronger than previously observed.

• OSTI ID: 6828121
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:14; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DISTORTED WAVE THEORY
ELECTRON REACTIONS
ENERGY RANGE
EXPERIMENTAL DATA
IMPULSE APPROXIMATION
INFORMATION
KNOCK-OUT REACTIONS
LEPTON REACTIONS
MASS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 100-1000
MISSING MASS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE KINEMATICS
SPECTROMETERS
TARGETS