Measurements and a direct-reaction--plus--Hauser-Feshbach analysis of /sup 89/Y(p,n)/sup 89/Zr, /sup 89/Y(p,2n)/sup 88/, and /sup 89/Y(p,pn)/sup 88/Y reactions up to 40 MeV

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.38.1624· OSTI ID:6792766

Mustafa, M G; West, Jr, H I; O'Brien, H; Lanier, R G; Benhamou, M; Tamura, T

We report measurements and analyses of cross sections up to 40 MeV for the reactions /sup 89/Y(p,n)/sup 89/Zr, /sup 89/Y(p,2n)/sup 88/Zr, and /sup 89/Y(p,pn)/sup 88/Y obtained by the foil-activation method. The data are compared with other measurements and analyzed by the Hauser-Feshbach plus one- and two-step direct reactions. The analysis shows that Hauser-Feshbach plus one-step direct reaction is adequate to explain the data. The cross sections are also calculated with phenomenological preequilibrium models (exciton, hybrid, and geometry-dependent hybrid models), using global parameters. However, to get a good fit to the data with these phenomenological models, some adjustments of the global parameters were necessary. A discussion on the differences between the direct-reaction theory and preequilibrium models is given.

• Research Organization: Nuclear Chemistry Division, Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
• OSTI ID: 6792766
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651720* -- Nuclear Properties & Reactions
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DATA
DAYS LIVING RADIOISOTOPES
DIRECT REACTIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
EVAPORATION MODEL
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
FERMIONS
FUNCTIONS
HADRON REACTIONS
HADRONS
HAUSER-FESHBACH THEORY
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
ODD-ODD NUCLEI
PRECOMPOUND-NUCLEUS EMISSION
PROTON REACTIONS
PROTONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SEMICLASSICAL APPROXIMATION
TARGETS
YTTRIUM 88
YTTRIUM 89 TARGET
YTTRIUM ISOTOPES
ZIRCONIUM 88
ZIRCONIUM 89
ZIRCONIUM ISOTOPES