Direct neutron decay of the isoscalar giant dipole resonance
Journal Article
·
· Physics of Atomic Nuclei
- University of Groningen, Kernfysisch Versneller Instituut (Netherlands)
- Institute of Nuclear Research of the Hungarian Academy of Sciences (Debrecen) (Hungary)
- University of Notre Dame (United States)
- Osaka University, Research Center for Nuclear Physics (Japan)
- INFN (Italy)
The direct and statistical neutron decay of the isoscalar giant dipole resonance has been studied in {sup 90}Zr, {sup 116}Sn, and {sup 208}Pb using the ({alpha}, {alpha}' n) reaction at a bombarding energy of 200 MeV. The spectra of fast decay neutrons populating valence hole states of the Z, N - 1 nuclei were analyzed, and estimates for the branching ratios were determined. The observation of the nucleon-direct-decay channels helped to select giant-resonance strengths and suppress the underlying background and continuum, which led to an indication of the existence of a new mode with L 2 character, presumably the overtone of the isoscalar giant quadrupole resonance.
- OSTI ID:
- 21075747
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 8 Vol. 70; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evidence for direct neutron decay of the isoscalar giant dipole resonances in {sup 90}Zr, {sup 116}Sn, and {sup 208}Pb
Gamma decay of isoscalar and isovector giant resonances following heavy-ion inelastic scattering
Isoscalar breathing mode state in /sup 90/Zr and /sup 116/Sn
Journal Article
·
Sun Jan 14 23:00:00 EST 2007
· Physical Review. C, Nuclear Physics
·
OSTI ID:20990962
Gamma decay of isoscalar and isovector giant resonances following heavy-ion inelastic scattering
Conference
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:5616287
Isoscalar breathing mode state in /sup 90/Zr and /sup 116/Sn
Journal Article
·
Mon Mar 31 23:00:00 EST 1980
· Phys. Rev., C; (United States)
·
OSTI ID:5409204