Inelastic Electron Scattering from 20,22Ne

1973 ◽  
Vol 51 (20) ◽  
pp. 2125-2137 ◽  
Author(s):  
R. P. Singhal ◽  
H. S. Caplan ◽  
J. R. Moreira ◽  
T. E. Drake
Keyword(s):  
Momentum Transfer ◽  
Excited States ◽  
Electron Scattering ◽  
Ground State ◽  
State Transition ◽  
Transition Probabilities ◽  
Limited Range ◽  
Particle Model ◽  
Inelastic Electron ◽  
Momentum Transfer Range

The scattering of electrons from the low lying excited states of 20Ne and 22Ne has been studied in the momentum transfer range from 0.41 fm−1 to 1.04 fm−1. Over a limited range of momentum transfer the study of 20Ne has been extended to excited states up to 8 MeV. A phase shift code has been used to extract the ground state transition probabilities of the states observed. The model dependence of the results is investigated. The experimental results have been compared with the predictions of the Nilsson and the alpha-particle model.

Inelastic Electron Scattering from 18O

1971 ◽  
Vol 49 (22) ◽  
pp. 2743-2753 ◽  
Author(s):  
J. L. Groh ◽  
R. P. Singhal ◽  
H. S. Caplan ◽  
B. S. Dolbilkin
Keyword(s):  
Electron Scattering ◽  
Cross Sections ◽  
Ground State ◽  
Transition Probabilities ◽  
Form Factors ◽  
Wave Functions ◽  
Inelastic Electron ◽  
Inelastic Electron Scattering ◽  
Momentum Transfer Range ◽  
Scattering Cross Sections

The inelastic electron scattering cross sections for the excitation of the levels in 18O lying below 6.0 MeV have been measured in the momentum transfer range 0.5 < q < 1.0 fm−1. Excitation of the following T = 1 levels was observed: 1.98 MeV (2+), 3.63 MeV (0+), 3.92 MeV (2+), 4.45 MeV (1−), 5.09 MeV (3−), 5.25 MeV (2+), and 5.33 MeV (0+). Estimates of transition probabilities to the ground state have been made through a parameterization of the data using the generalized Helm model. Longitudinal form factors calculated from the wave functions of Benson and Irvine show excellent agreement with the experimental form factors.

Inelastic electron scattering from the 13 MeV region in oxygen-16

1970 ◽  
Vol 48 (1) ◽  
pp. 83-93 ◽  
Author(s):  
J. C. Kim ◽  
R. P. Singhal ◽  
H. S. Caplan
Keyword(s):  
Momentum Transfer ◽  
Cross Section ◽  
Electron Scattering ◽  
Magnetic Monopole ◽  
Wave Functions ◽  
Inelastic Electron ◽  
Excitation Energies ◽  
Transfer Data ◽  
Upper Limit ◽  
Momentum Transfer Range

The cross section for the inelastic scattering of electrons from 16O was measured at excitation energies between 11.5 and 13.25 MeV and momentum transfers between 0.45 and 0.9 fm−1. This momentum transfer range bridges the gap between the previous high momentum transfer data of Bishop et al. and the low momentum transfer data of Stroetzel. The odd parity states are compared with the particle–hole predictions generated from Gillet's wave functions. The generalized Helm model fits the 11.5 MeV (2+) level fairly well. An upper limit is set on the excitation of the magnetic monopole (0−) level at 12.70 MeV.

High resolution inelastic electron scattering on 28Si at low momentum transfer and isovector m1 strength in 28Si

1979 ◽  
Vol 323 (1) ◽  
pp. 13-25 ◽  
Author(s):  
R. Schneider ◽  
A. Richter ◽  
A. Schwierczinski ◽  
E. Spamer ◽  
O. Titze ◽  
...  
Keyword(s):  
High Resolution ◽  
Momentum Transfer ◽  
Electron Scattering ◽  
Inelastic Electron ◽  
Inelastic Electron Scattering

scholarly journals Electron Scattering from the Ground and Excited States of Barium

1999 ◽  
Vol 52 (3) ◽  
pp. 603
Author(s):  
Dmitry V. Fursa
Keyword(s):  
Excited States ◽  
Electron Scattering ◽  
Cross Sections ◽  
Differential Cross ◽  
Ground State ◽  
Differential Cross Sections ◽  
Close Coupling ◽  
Angular Correlations ◽  
Electron Photon ◽  
Good Agreement

We have used the nonrelativistic convergent close-coupling (CCC) method to investigate electron scattering from the ground (6s2)1S state and excited (6s6p)1 Po1 and (6s5d)1,3De2 states of barium. For the scattering from the barium ground state, we have found very good agreement with measurements of (6s6p)1 Po1 apparent cross sections at all energies. Similarly, good agreement is found for differential cross sections for elastic scattering and (6s6p)1 Po and (6s5d)1 De2 excitations and with the (6s6p)1 Po1 state electron{photon angular correlations. For the scattering from excited states of barium we have found good agreement with elastic (6s6p)1 Po1 scattering and the (6s5d)1De2 → (6s6p)1 Po1 transition for both differential cross sections and electron–photon angular correlations.

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