Fermi and Gamow-Teller strength in p-shell nuclei from (p,n) reactions at 492 and 590 MeV

Journal Article · Mon May 01 00:00:00 EDT 1989 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.39.1929· OSTI ID:6166950

Rapaport, J; Lisowski, P W; Ullmann, J L; Byrd, R C; Carey, T A; McClelland, J B; Rybarcyk, L J; Taddeucci, T N; Haight, R C; King, N S.P.; others, and

Zero-degree (p,n) cross sections, measured with approximately 1-MeV energy resolution at E/sub p/ = 492 MeV, are reported for /sup 7/Li, /sup 11/B, and /sup 12,13,14/C. Measurements for /sup 11/B(p,n) and /sup 13/C(p,n) were also obtained at 590 MeV. The cross sections for Gamow-Teller and Fermi type transitions are used to estimate the strengths of the isovector spin-dependent (J/sub sigma//sub tau/) and spin-independent (J/sub tau/) terms of the effective interaction. The measured zero-degree cross sections for the /sup 14/C(p,n)/sup 14/N transitions to the 2.31 MeV isobaric analog state and the 3.95-MeV J/sup ..pi../ = 1/sup +/ state are compared with calculated values. Values for the unit cross-section ratio R/sup 2/ = sigma-circumflex/sub GT//sigma-circumflex/sub F/ = (J/sub sigma//sub tau//J/sub tau/)/sup 2/ (N/sub sigma//sub tau//N/sub tau/) obtained from the present data are compared with results for other energies.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6166950
• Journal Information: Phys. Rev. C; (United States), Vol. 39:5
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON 11 TARGET
PROTON REACTIONS
CARBON 12 TARGET
CARBON 13 TARGET
CARBON 14 TARGET
LITHIUM 7 TARGET
NITROGEN 14
ENERGY-LEVEL TRANSITIONS
ISOBARIC ANALOGS
CHARGE-EXCHANGE REACTIONS
CROSS SECTIONS
FERMI LEVEL
GAMOW-TELLER RULES
LAMPF LINAC
MEV RANGE 100-1000
NEUTRONS
PARITY
SPIN
ACCELERATORS
ANGULAR MOMENTUM
BARYON REACTIONS
BARYONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
FERMIONS
HADRON REACTIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
LINEAR ACCELERATORS
MESON FACTORIES
MEV RANGE
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
ODD-ODD NUCLEI
PARTICLE PROPERTIES
STABLE ISOTOPES
TARGETS
651320* - Nuclear Properties & Reactions
A=6-19
Experimental