( p , n ) reaction on Li isotopes for E sub p =60--200 MeV

Journal Article · Tue May 01 04:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.1920· OSTI ID:6848033

Rapaport, J ^[1]; Foster, C C; Goodman, C D ^[2]; Goulding, C A; Taddeucci, T N ^[3]; Horen, D J ^[4]; Sugarbaker, E R ^[5]; Gaarde, C; Larsen, J ^[6]; Carr, J A; Petrovich, F; Threapleton, M J ^[7]

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1. Physics Department, Ohio University, Athens, Ohio 45701 (USA)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (USA)
3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)
4. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 (USA)
5. Physics Department, Ohio State University, Columbus, Ohio 43215 (USA)
6. Niels Bohr Institute, University of Copenhagen, DK 2100 Copenhagen, Denmark (USA)
7. Physics Department and Supercomputer Computations Research Institute, The Florida State University, Tallahassee, Florida 32306 (USA)

Differential cross section angular distributions for the {sup 6,7}Li({ital p},{ital n}){sup 6,7}Be reactions have been measured at energies between 60 and 200 MeV. The experimental angular distributions are analyzed using a microscopic distorted wave impulse approximation. The results of self-consistent microscopic distorted wave calculations based on a complete set of weak and electromagnetic data for the mass 6 and 7 systems are also presented. Total observed Gamow-Teller strength up to about 40 MeV excitation energy is reported. Energy dependence of the {sigma}{tau} and {tau} effective interaction terms are presented up to 200 MeV. The measured ({ital p},{ital n}) cross sections for the {sup 7}Be (g.s.) and {sup 7}Be (0.43 MeV) transitions are used to obtain the branching ratio of the {sup 7}Be (g.s.) decay to the g.s. and 0.478 MeV states in {sup 7}Li. Zero degree polarization transfer ({ital D}{sub {ital N}{ital N}}) data at {ital E}{sub {ital p}}=80, 120, 160, and 200 MeV are reported for the {sup 6}Li({ital p},{ital n}){sup 6}Be (g.s.) and for the {sup 7}Li({ital p},{ital n}){sup 7}Be (g.s.+0.43 MeV) reactions. Energy dependence of total and zero degree differential cross section for the {sup 7}Li({ital p},{ital n}){sup 7}Be (g.s.+0.43 MeV) transitions are reported. Finally a comparison is presented for the ({ital n},{ital p}), ({ital p},{ital p}{prime}), and ({ital p},{ital n}) reaction in {sup 6}Li populating isospin triplets.

• OSTI ID: 6848033
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR DISTRIBUTION
BARYON REACTIONS
BERYLLIUM 6
BERYLLIUM 7
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BRANCHING RATIO
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DAYS LIVING RADIOISOTOPES
DIFFERENTIAL CROSS SECTIONS
DISTORTED WAVE THEORY
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GAMOW-TELLER RULES
HADRON REACTIONS
IMPULSE APPROXIMATION
INFORMATION
ISOTOPES
LIGHT NUCLEI
LITHIUM 6 TARGET
LITHIUM 7 TARGET
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PROTON REACTIONS
RADIOISOTOPES
TARGETS
TIME-OF-FLIGHT METHOD