scholarly journals GDR Contribution to Coulomb Excitation. II. 17O

1982 ◽  
Vol 35 (3) ◽  
pp. 301 ◽  
Author(s):  
FC Barker

The contribution to the Coulomb excitation of the first excited state of 170 due to virtual excitation of the giant dipole resonance (GDR) is calculated, using shell model wavefunctions for the ground and first excited states. A large value is obtained.

1982 ◽  
Vol 35 (3) ◽  
pp. 283 ◽  
Author(s):  
WJ Vermeer ◽  
TH Zabel ◽  
MT Esat ◽  
JA Kuehner ◽  
RH Spear ◽  
...  

Coulomb excitation of the O' 718 MeV, In = 1 +, first excited state of lOB has been studied using projectile excitation by 208Pb and observing the backward scattered particles. The results give a clear indication of the virtual excitation of the giant dipole resonance (GDR) as a second-order effect. The observed magnitude is consistent with the usual hydrodynamic model estimate and with a recent shell-model calculation.


1982 ◽  
Vol 35 (3) ◽  
pp. 291 ◽  
Author(s):  
FC Barker

The contributions to the Coulomb excitation of the first excited states of 6Li, 7Li, lOB and 12C due to virtual excitation of the giant dipole resonance (GDR) are calculated, using shell model wavefunctions for the ground and first excited states. When the radial integrals are renormalized in order to fit the experimental B(E2) values for the transitions between these states, the calculated GDR contributions agree reasonably with the measured values in 6Li, 7Li and lOB.


1982 ◽  
Vol 35 (4) ◽  
pp. 377 ◽  
Author(s):  
FC Barker

The discrepancy between the values of B(E2) for the transition between the ground and first excited states in 180 as obtained from Coulomb excitation measurements and from other measurements is here attributed to the giant dipole resonance (GDR) contribution to Coulomb excitation; an estimate based on shell model calculations predicts this contribution to be much larger than previously assumed.


1969 ◽  
Vol 47 (20) ◽  
pp. 2255-2259 ◽  
Author(s):  
M. Salomon ◽  
C. Hojvat

Coulomb excitation of Br targets and the reaction 80Se(p,γ)81Br were used to populate the low lying excited states of 81Br and an energy level scheme is proposed. The reduced transition probability from the ground state to the first excited state of 81Br (276 keV) has been measured to be B(E2) = 410 ± 40 e2 f4.


1980 ◽  
Vol 33 (3) ◽  
pp. 509 ◽  
Author(s):  
RH Spear ◽  
MP Fewell

The reorientation effect in Coulomb excitation has been used to measure the static quadrupole moment Q2+ and B(E2;0+->2+) for the 1�779 MeV first excited state of 28Si. The results obtained are Q2+ = +15�5�3�4 efm2 and B(E2;0+->2+) = 326�20 e2fm4 ? The value obtained for Q2+ confirms the results of other recent determinations using the reorientation effect, and the B(E2; 0+ -> 2 +) value is in excellent agreement with the mean value deduced from previous lifetime determinations. Shell model and Hartree-Fock calculations of Q2+ both give a good account of the experimental result.


1969 ◽  
Vol 29 (10) ◽  
pp. 660-662 ◽  
Author(s):  
D. Pelte ◽  
O. Häusser ◽  
T.K. Alexander ◽  
B.W. Hooton ◽  
H.C. Evans

2000 ◽  
Vol 284 (1) ◽  
pp. 167-177 ◽  
Author(s):  
M.S. Hussein ◽  
A.F.R. de Toledo Piza ◽  
O.K. Vorov

1982 ◽  
Vol 115 (6) ◽  
pp. 437-440 ◽  
Author(s):  
J.A. Kuehner ◽  
R.H. Spear ◽  
W.J. Vermeer ◽  
M.T. Esat ◽  
A.M. Baxter ◽  
...  

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