Stripping with 28-Mev Deuterons

Abstract

A study of a (d,t) and several (d,p) reactions was performed using 28-Mev deuterons. The outgoing particles were analyzed with a scintillation spectrometer. The absolute differential cross section of the following processes was measured: Li 7 (d,t)Li Q , Be 9 (^)Be 10 , Be 9 (<^)Be 10 *-3.37 Mev, B 10 (^)B U , C 12 (d,p)C ls , and C 12 (^)C 13 *-3.68 Mev.The angular distributions were fitted by means of directinteraction plane-wave theoretical curves. All the reactions reported here take place between states of known spin and parity. The Li 7 (d,/)Li 6 reaction can be fitted with a "pickup" curve corresponding to /= 1 and a = 5 f, where I is the angular momentum change and a is the interaction radius. With the exception of the reaction C 12 (d,p)C lz * -3.68 Mev, the stripping angular distributions exhibit a secondary oscillation that was interpreted as due to a second value of I contributing to the cross section. Therefore the angular distributions of the following processes were fitted by superimposing the theoretical curves of 1=1 and 1 = 3: Be 9 (d,p)BQ 10 with an interaction radius a = 3.5 f, Be 9 (c^>)Be 10 * -3.37 Mev with a = 3.8 f,B 10 (^)B n with a=3.6 f, and C 12 (d,p)C u with a = 3.5 f. Finally the C 12 (d,p)C lz *-3.68 Mev angular distribution was fitted with a theoretical curve of 1=1 and a=3A f. The stripping reduced widths were calculated for the different I contributions to the experimental cross section. The appearance of the / component in addition to the p component predicted by the shell model in the differential cross sections, tentatively assumed here, could be due to configuration mixing, and the levels connected by the transitions should not be pure shell-model states.

Systematic extraction of spectroscopic factors fromC12(d,p)CLiu1, Famiano2, Lynch3 et al. 2004Phys. Rev. C764850View full textAdd to dashboardCite

“…We did not analyze data at E d =28 [37] and 56 MeV [15], and at E p =65 MeV [17] because those angular distributions did not include the first peak. Greenless [21], was found to lead to very similar results to those of the CH set.…”

Neutronics analysis of the International Fusion Materials Irradiation Facility using the PHITS code

“…A preliminary result is presented in figure 6 for deuteron elastic scattering from 7 Li at 28 MeV together with experimental data [19]. Neutron and proton OMPs are taken from refs.…”

Study of the ReactionC12(d, p)C13with the Weak

“…We use the same approximations as in previous calculations. 31 " 32 The zero-range approximation for the neutron-proton interaction V np is made in the neutron-capturing interaction V(r n , kpO = J | XP+(K>, *P) \*V np (T n -T p )dr p , (3) which is replaced by V (r" M = -(p/m) (Z 2 +T 2 ) | XpHtn, kp-) | 2 (4) with K=|k^-k p . The bound-neutron wave function is evaluated in a local Woods-Saxon potential, and contributions from the d-state component of the deuteron are neglected.…”

“…1,2 Many measurements have since been made. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] Most of them have yet to be explained.…”