Light particle emission in /sup 16/O-induced reactions at 140, 215, and 310 MeV

Journal Article · Sat May 01 04:00:00 EDT 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.25.2361· OSTI ID:5016746

Awes, T C; Saini, S; Poggi, G; Gelbke, C K; Cha, D; Legrain, R; Westfall, G D

Double differential cross sections have been measured for energetic p, d, t, and ..cap alpha.. particles emitted in /sup 16/O-induced reactions on targets of Al, Zr, and Au at incident energies of 140, 215, and 310 MeV. The energy and angular distributions are well described by isotropic emission from a moving thermal source. The extracted temperature and velocity parameters are found to vary systematically with the incident energy per nucleon above the Coulomb barrier. The observed trends cannot be explained by compound nucleus emission but instead suggest emission from a source which consists of comparable contributions from target and projectile. Alternatively, the proton energy spectra are compared with a precompound model and with a simple knockout model. The d, t, and ..cap alpha..-particle cross sections are also described in terms of a generalized coalescence relation which takes into account Coulomb repulsion from the target nucleus.

• Research Organization: Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
• OSTI ID: 5016746
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 25:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651425* -- Nuclear Properties & Reactions
A=20-38
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651725 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651925 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ALUMINIUM 27 TARGET
ANGULAR DISTRIBUTION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COULOMB FIELD
CROSS SECTIONS
DATA
DEUTERONS
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
ELECTRIC FIELDS
ENERGY RANGE
ENERGY SPECTRA
EXPERIMENTAL DATA
GOLD 197 TARGET
HEAVY ION REACTIONS
INFORMATION
KNOCK-OUT REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUMERICAL DATA
OXYGEN 16 REACTIONS
PRECOMPOUND-NUCLEUS EMISSION
PROTON SPECTRA
SPECTRA
TARGETS
TRITONS
ZIRCONIUM 90 TARGET