Published August 26, 1991 | Version v1
Journal article Metadata-only

Relative strength (ΔS=1)/[(ΔS=0)+(ΔS=1)] of isovector spin excitations in the high-lying resonance region of 12C

Creators

  • 1. Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567 (Japan)
  • 2. Institute for Chemical Research, Kyoto University, Uji, Kyoto 611 (Japan)
  • 3. Kobe Tokiwa Junior College, Nagata, Kobe 653 (Japan)
  • 4. Department of Physics, Konan University, Higashinada, Kobe 658 (Japan)
  • 5. College of General Education, University of Tokushima, Tokushima 770 (Japan)

Description

The relative strength (ΔS=1)/[(ΔS=0)+(ΔS=1)] of isovector spin excitations, Psf, in the high-lying resonance region of 12C was investigated with the (7Li,7Be) reaction at EL=26 MeV/nucleon and θL=0 degree by separately measuring the (7Li,7Beg.s.) and (7Li,7Be0.43 MeV) reaction channels with the 7Be-γ coincidence technique. The relative strength Psf was derived up to an excitation energy of 18 MeV in 12B and found to have a constant value of 0.4--0.5 for the continuum irrespective of excitation energy and 0.5 for the isovector dipole resonance centered at Ex=7.6 MeV

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
67
Journal Issue
9
Series
Phys. Rev. Lett.
Journal Page Range
1082-1085
ISSN
0031-9007
CODEN
PRLTA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22087792
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
CARBON 12; CARBON 12 TARGET; COINCIDENCE METHODS; CROSS SECTIONS; ENERGY SPECTRA; ENERGY-LEVEL TRANSITIONS; GAMMA DETECTION; GIANT RESONANCE; INELASTIC SCATTERING; LITHIUM 7 REACTIONS; MEV RANGE 100-1000
Descriptors DEC
CARBON ISOTOPES; COUNTING TECHNIQUES; DETECTION; ENERGY RANGE; EVEN-EVEN NUCLEI; HEAVY ION REACTIONS; ISOTOPES; LIGHT NUCLEI; MEV RANGE; NUCLEAR REACTIONS; NUCLEI; RADIATION DETECTION; RESONANCE; SCATTERING; SPECTRA; STABLE ISOTOPES; TARGETS