Approach for calculating multistep direct reactions of continuum and discrete levels

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

DOI:https://doi.org/10.1103/PhysRevC.50.2473· OSTI ID:6947782

Shen, Q; Zhang, J ^[1]

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1. China Institute of Atomic Energy, P.O. Box 275 (41), Beijing 102413 (China)

A method for calculating multistep direct reactions for both continuum and discrete levels is proposed. The energy-angle correlation scattering kernel is adopted for continuum and discrete levels in the semiclassical approach, in which the angular momentum and parity conservations are considered. Then, following the Feshbach, Kerman, and Koonin quantum multistep direct reactions theory, the Legendre coefficients of the angular distributions are calculated based on one-step distorted-wave Born approximation instead of nucleon-nucleon scattering expressions in nuclear matter. Since the quantum effects are properly considered, we call it the quasiquantum multistep direct reactions theory. For the specific reaction considered here, the calculated discrete level neutron angular distributions of the [sup 11]B([ital p],[ital n][sub 0])[sup 11]C reaction and the cross sections of the [sup 11]B([ital p],[ital n][sub 0])[sup 11]C and the [sup 11]B([ital p],[ital n])[sup 11]C reactions reproduce the experimental data reasonably. This approach can also be used to composite particle emissions.

• OSTI ID: 6947782
• 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

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663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON REACTIONS
BORN APPROXIMATION
BORON 11 TARGET
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
DISTORTED WAVE THEORY
DISTRIBUTION
HADRON REACTIONS
INVARIANCE PRINCIPLES
NUCLEAR REACTIONS
NUCLEON REACTIONS
P INVARIANCE
PROTON REACTIONS
TARGETS