Short range interaction of nucleons inside the nucleus via [sup 4]He([ital e],[ital e][prime][ital p])[ital R] reactions

Journal Article · Tue Nov 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.2278· OSTI ID:6904964

Le Goff, J M; Bernheim, M; Brussel, M K; Capitani, G P; Danel, J F; De Sanctis, E; Frullani, S; Garibaldi, F; Gerard, A; Jodice, M; Magnon, A; Marchand, C; Morgenstern, J; Picard, J; Reffay, D; Vernin, P; Zghiche, A ^[1]

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1. Service de Physique Nucleaire (SPhN), CEN Saclay, F-91191 Gif-sur-Yvette Cedex (France) Department of Physics, University of Illinois at Urbana Champaign, Urbana, Illinois 61081 (United States) Laboratori Nazionali di Frascati, Istituto Nazionale de Fisica Nucleare, I-00044 Frascati (Italy) Laboratori di Fisica, Istituto Superiore di Sanita and Istituto Nazionale di Fisica Nucleare, Sezione Sanita I-00161 Roma (Italy)

Cross sections for the [sup 4]He([ital e],[ital e][prime][ital p])[ital R] reaction have been measured for recoil momenta between 225 and 500 MeV/[ital c]. We find (1) that in the continuum channel a peak in the missing energy spectrum appears which shifts with increasing recoil momentum in a predictable way, and (2) that for the highest recoil momenta (above 300 or 350 MeV/[ital c]) overall agreement is obtained with microscopic calculations in which the scattering on nucleon pairs predominates. These results strongly suggest that the highest recoil momenta are generated by the scattering on one of a pair of nucleons. This interpretation is reinforced by an observed continuum momentum distribution which, for high recoil momenta, resembles the momentum distribution of deuterium. We infer that the high momentum part of the momentum distributioon of a nucleon pair appears unmodified when embedded in a nuclear medium.

• OSTI ID: 6904964
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:5; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663420* -- Lepton-Induced Reactions & Scattering-- (1992-)
663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
DEUTERONS
DIRECT REACTIONS
ELECTRON REACTIONS
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
HADRONS
HELIUM 4 TARGET
INELASTIC SCATTERING
KNOCK-OUT REACTIONS
LEPTON REACTIONS
NUCLEAR FORCES
NUCLEAR REACTIONS
NUCLEONS
PARTICLE PROPERTIES
PROTONS
SCATTERING
TARGETS