Nuclear Reactions (Optical Model. Deuteron Reactions)

1959 ◽  
pp. 58-65
Author(s):  
C. Landau ◽  
Ya. Smorodinsky
1958 ◽  
Vol 7 (6) ◽  
pp. 821-828 ◽  
Author(s):  
L. Verlet

2005 ◽  
Vol 14 (04) ◽  
pp. 663-673 ◽  
Author(s):  
I. BOZTOSUN ◽  
O. BAYRAK ◽  
Y. DAGDEMIR

Studying nuclear reactions near the Coulomb barrier shows a number of problems which have remained unsolved for a long time: The out-of-phase problem between theoretical predictions and experimental data; the reproductions of the oscillatory structure near the Coulomb barrier; the consistent description of angular distributions together with the excitation functions data are just some of these problems. In order to address and overcome these problems, by considering a comparative study of the shallow and deep optical potentials, the elastic scattering angular distributions and excitation functions data of the 12 C +24 Mg reaction have been analyzed within the framework of the optical model over a wide energy range. The potential depths near the Coulomb barrier according to the increasing energy and threshold anomaly are discussed in terms of the shallow and deep potentials. Excellent agreement between theoretical results and measured data is obtained by using the optical model.


1958 ◽  
Vol 10 (3) ◽  
pp. 505-519 ◽  
Author(s):  
L. Verlet ◽  
J. Gavoret

1959 ◽  
Vol 21 (1) ◽  
pp. 85-97
Author(s):  
Satio Hayakawa ◽  
Tatuya Sasakawa ◽  
Kazuhisa Tomita ◽  
Masaru Yasuno ◽  
Mario Yokota

1966 ◽  
Vol 21 (7) ◽  
pp. 969 ◽  
Author(s):  
B. Duelli ◽  
G. Mairle ◽  
U. Schmidt-Rohr ◽  
P. Turek ◽  
G. Wagner

The nuclear reactions of 52 MeV deuterons have been studied at some medium weight and heavy nuclei. The angular distributions of elastically scattered deuterons show sharp structures which are smoothed out — similar to the results at lower deuteron energies — for target nuclei near A = 100. The optical model analysis gives good fits with parameters extrapolated from the best values at lower energies. The „Smoothed Cut-off“ models do not describe the results properly. The influence of the nuclear interior on the elastic scattering is important.The proton spectra from the (d, p) and (d, pn) reactions are dominated by a broad „break up“ maximum. From the width of the maximum and the A-dependence of the cross section it is concluded that nuclear break up is more frequent at 52 MeV than COULOMB break up. The spectra of deuterons and tritons from the (d, d′) and (d, t) reactions show maxima up to Q-values of — 15 MeV. With these reactions it should be possible to study collective excitation up to high excitation energies and to get information about inner shells. The intensity of low energy inelastic deuterons is surprisingly large.


A nuclear emulsion method for studying scattering and nuclear reactions of particles from the Nuffield cyclotron of the University of Birmingham, in gaseous targets, is presented. This method has been developed from that described by Burrows, Powell & Rotblat (1951). The differential cross-sections for elastic scattering of 9∙5 MeV protons by He, C, N, O, F, Ne, A, Kr and Xe have been measured, and the results for all except Kr and Xe are discussed in terms of the optical model. Results for carbon obtained at four energies between 9∙37 MeV and 9∙58 MeV show marked dependence on energy. Differential cross-sections for inelastic scattering of 9∙5 MeV protons from C, N, Ne, A and F are also presented and discussed.


Sign in / Sign up

Export Citation Format

Share Document