Two-body photodisintegration of UHe in the 100-360 MeV region

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.33.50· OSTI ID:6172697

Schumacher, R A; Matthews, J L; Sapp, W W; Turley, R S; Adams, G S; Owens, R O

Measurements of the differential cross sections for the UHe(el,n)THe and UHe(el,p)TH reactions have been performed for photon energies in the 100-360 MeV region. Results were obtained for nucleon center-of-mass angles close to 60, 90, and 120 by detecting the recoiling nuclei with a magnetic spectrometer. Both (el,p) and (el,n) cross sections are forward peaked and fall rapidly as a function of photon energy. The (el,p) to (el,n) cross section ratio is in the range 0.7-1.3 at each angle and tends to increase with photon energy. The data are compared with a calculation by Gari and Hebach which includes meson exchange contributions. The magnitude and energy dependence of the cross sections are approximately reproduced, but the theory fails to describe the angular dependence and the cross section ratios.

• Research Organization: Department of Physics and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 6172697
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 33:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYON-BARYON INTERACTIONS
BARYONS
BOSON-EXCHANGE MODELS
CHARGED PARTICLES
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FERMIONS
FRAGMENTATION
HADRON-HADRON INTERACTIONS
HADRONS
HELIUM 3
HELIUM 4 TARGET
HELIUM ISOTOPES
INFORMATION
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 100-1000
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
PHOTONUCLEAR REACTIONS
PROTONS
RANDOM PHASE APPROXIMATION
RECOILS
SPECTROMETERS
STABLE ISOTOPES
TARGETS
TRITONS