Abstract
({sup 3}He, {sup 7}Be) reaction have been measured and re-analysed on some A = 4n target nuclei between {sup 12}C and {sup 90}Zr. An exact finite-range DWBA calculations, with spin-orbit term in the optical potentials, have been carried out assuming a single-step alpha-cluster transfer. The question of the observed characteristic difference between two {sup 7}Be-states has been discussed in some detail. It is apparent that, despite the deficiencies in the details of the quality of the description to the angular distribution, the spin-orbit term represents the major reason for the characteristic difference between the two {sup 7}Be-states. Both absolute and relative alpha-spectroscopic factors are deduced. It is concluded that staying in the same potential family, variations of S{sub {alpha}} between {sup 12}C and {sup 40}Ca are but moderate with possible existence for local variations, S{sub {alpha}} being lower in the middle of the sd shell and higher for {sup 40}Ca. At relatively higher beam energy, i.e., at 70 MeV in the present case and with increasing mass number, S{sub {alpha}}-values, in general decrease, implying a decrease in surface alpha-clustering for heavier nuclei. (author). 30 refs, 11 figs, 3 tabs.
Rahman, M A;
[1]
Lezoch, P;
Trost, H J;
Strohbusch, U
[2]
- International Centre for Theoretical Physics, Trieste (Italy)
- Hamburg Univ. (Germany, F.R.). 1. Inst. fuer Experimentalphysik
Citation Formats
Rahman, M A, Lezoch, P, Trost, H J, and Strohbusch, U.
The ({sup 3}He, {sup 7}Be) reaction on light and medium mass nuclei.
IAEA: N. p.,
1991.
Web.
Rahman, M A, Lezoch, P, Trost, H J, & Strohbusch, U.
The ({sup 3}He, {sup 7}Be) reaction on light and medium mass nuclei.
IAEA.
Rahman, M A, Lezoch, P, Trost, H J, and Strohbusch, U.
1991.
"The ({sup 3}He, {sup 7}Be) reaction on light and medium mass nuclei."
IAEA.
@misc{etde_10106173,
title = {The ({sup 3}He, {sup 7}Be) reaction on light and medium mass nuclei}
author = {Rahman, M A, Lezoch, P, Trost, H J, and Strohbusch, U}
abstractNote = {({sup 3}He, {sup 7}Be) reaction have been measured and re-analysed on some A = 4n target nuclei between {sup 12}C and {sup 90}Zr. An exact finite-range DWBA calculations, with spin-orbit term in the optical potentials, have been carried out assuming a single-step alpha-cluster transfer. The question of the observed characteristic difference between two {sup 7}Be-states has been discussed in some detail. It is apparent that, despite the deficiencies in the details of the quality of the description to the angular distribution, the spin-orbit term represents the major reason for the characteristic difference between the two {sup 7}Be-states. Both absolute and relative alpha-spectroscopic factors are deduced. It is concluded that staying in the same potential family, variations of S{sub {alpha}} between {sup 12}C and {sup 40}Ca are but moderate with possible existence for local variations, S{sub {alpha}} being lower in the middle of the sd shell and higher for {sup 40}Ca. At relatively higher beam energy, i.e., at 70 MeV in the present case and with increasing mass number, S{sub {alpha}}-values, in general decrease, implying a decrease in surface alpha-clustering for heavier nuclei. (author). 30 refs, 11 figs, 3 tabs.}
place = {IAEA}
year = {1991}
month = {Jun}
}
title = {The ({sup 3}He, {sup 7}Be) reaction on light and medium mass nuclei}
author = {Rahman, M A, Lezoch, P, Trost, H J, and Strohbusch, U}
abstractNote = {({sup 3}He, {sup 7}Be) reaction have been measured and re-analysed on some A = 4n target nuclei between {sup 12}C and {sup 90}Zr. An exact finite-range DWBA calculations, with spin-orbit term in the optical potentials, have been carried out assuming a single-step alpha-cluster transfer. The question of the observed characteristic difference between two {sup 7}Be-states has been discussed in some detail. It is apparent that, despite the deficiencies in the details of the quality of the description to the angular distribution, the spin-orbit term represents the major reason for the characteristic difference between the two {sup 7}Be-states. Both absolute and relative alpha-spectroscopic factors are deduced. It is concluded that staying in the same potential family, variations of S{sub {alpha}} between {sup 12}C and {sup 40}Ca are but moderate with possible existence for local variations, S{sub {alpha}} being lower in the middle of the sd shell and higher for {sup 40}Ca. At relatively higher beam energy, i.e., at 70 MeV in the present case and with increasing mass number, S{sub {alpha}}-values, in general decrease, implying a decrease in surface alpha-clustering for heavier nuclei. (author). 30 refs, 11 figs, 3 tabs.}
place = {IAEA}
year = {1991}
month = {Jun}
}