Mechanisms of. cap alpha. -particle and deuteron production in the reaction /sup 6/Li+/sup 59/Co at 41 MeV

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5369645

Bochkarev, O V; Korsheninnikov, A A; Kuz'min, E A; Mukha, I G; Chulkov, L V; Yan'kov, G B

The ..delta..E--E technique is used to measure the spectra of the deuterons and ..cap alpha.. particles from the /sup 6/Li+/sup 59/Co reaction, and the two-particle correlation method is used to determine the cross sections for the reaction /sup 59/Co(/sup 6/Li, ..cap alpha..d) at 41 MeV. The contributions of the various fragmentation channels to the inclusive spectra are experimentally determined. The remaining nonequilibrium part is analyzed from the viewpoint of pre-equilibrium mechanism. The total ..cap alpha..-particle and deuteron yields are approx.400 and approx.120 mb, the fractions of equilibrium particles being approx.15 and approx.3%, respectively. The subsequent decay of /sup 6/Li via the 3/sup +/ (2.18 MeV) state yields approx.10% of the ..cap alpha..-particle yield and approx.40% of the deuteron yield. The combined contribution of the consecutive decay via the states 2/sup +/(4.3 MeV) and 1/sup +/(5.7 MeV) and of the direct disintegration of /sup 6/Li was less than 10% of the ..cap alpha..-particle yield and less than 25% of the deuteron yield. The coalescence model is used to calculate the pre-equilibrium component (approx.25% for ..cap alpha.. particles and approx.30% for deuterons). The sum of the contributions of the processes considered accounts for almost the total deuteron yields and can explain more than half the ..cap alpha..-particle yield.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy
• OSTI ID: 5369645
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 41:1; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

651625* -- Nuclear Properties & Reactions
A=59-89
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ALPHA SPECTRA
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COBALT 59 TARGET
CROSS SECTIONS
DATA
DEUTERON SPECTRA
DEUTERONS
ENERGY RANGE
EXPERIMENTAL DATA
FRAGMENTATION
HEAVY ION REACTIONS
INFORMATION
LITHIUM 6 REACTIONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUMERICAL DATA
PRECOMPOUND-NUCLEUS EMISSION
SPECTRA
TARGETS
YIELDS