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(γ,n) study of the isovector quadrupole resonance in 40Ca

Sims, D. A. ; O'Keefe, G. J. ; Rassool, R. P. ; Kuzin, A. ; Thompson, M. N. ; Adler, Jan-Olof LU ; Andersson, B-E ; Fissum, Kevin LU ; Hansen, Kurt LU and Isaksson, Lennart LU , et al. (1997) In Physical Review C: covering nuclear physics 55(3). p.1288-1294
Abstract
The forward-to-backward asymmetry of neutrons emitted in the 40Ca(γ,n0) reaction was measured at photon energies in the range of 27–50 MeV. An energy-dependent asymmetry was observed that is interpreted as evidence of interference between the isovector quadrupole resonance and the giant dipole resonance. Data analysis in terms of semiclassical and direct-semidirect models estimate the isovector quadrupole resonance to be at an excitation energy of 31.0±1.5 MeV, with a width of 16.0±1.5 MeV, and exhausting most of the energy-weighted sum rule for the isovector quadrupole resonance.
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Contribution to journal
publication status
published
subject
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Physical Review C: covering nuclear physics
volume
55
issue
3
pages
1288 - 1294
publisher
American Physical Society
ISSN
2469-9985
DOI
10.1103/PhysRevC.55.1288
project
Charge-Symmetry Breaking in the Giant Dipole Resonance Region
Nucleon Knockout with Electromagnetic Beams
language
English
LU publication?
yes
id
95a7cc5f-35aa-42d6-b0d7-58d79b5546ca
date added to LUP
2019-06-25 11:19:48
date last changed
2019-09-25 04:01:10
@article{95a7cc5f-35aa-42d6-b0d7-58d79b5546ca,
  abstract     = {The forward-to-backward asymmetry of neutrons emitted in the 40Ca(γ,n0) reaction was measured at photon energies in the range of 27–50 MeV. An energy-dependent asymmetry was observed that is interpreted as evidence of interference between the isovector quadrupole resonance and the giant dipole resonance. Data analysis in terms of semiclassical and direct-semidirect models estimate the isovector quadrupole resonance to be at an excitation energy of 31.0±1.5 MeV, with a width of 16.0±1.5 MeV, and exhausting most of the energy-weighted sum rule for the isovector quadrupole resonance.},
  author       = {Sims, D. A.  and O'Keefe, G. J. and Rassool, R. P. and Kuzin, A. and Thompson, M. N. and Adler, Jan-Olof and Andersson, B-E and Fissum, Kevin and Hansen, Kurt and Isaksson, Lennart and Nilsson, Björn and Ruijter, H. and Sandell, Anders and Schröder, Bent and Annand, J. R.M. and Crawford, G. I.  and Harty, P. D. and McGeorge, J. C. and Miller, G J},
  issn         = {2469-9985},
  language     = {eng},
  number       = {3},
  pages        = {1288--1294},
  publisher    = {American Physical Society},
  series       = {	Physical Review C: covering nuclear physics},
  title        = {(γ,n) study of the isovector quadrupole resonance in 40Ca},
  url          = {http://dx.doi.org/10.1103/PhysRevC.55.1288},
  doi          = {10.1103/PhysRevC.55.1288},
  volume       = {55},
  year         = {1997},
}