Li6(n,d)He

Abstract

The angular distributions of deuterons for 7' &8, & 60' have been measured for 56.3 MeV neutrons incident on targets of Li and Li. Transitions corresponding to the pickup of 1p-shell and ls-shell protons are strong with the latter exhibiting structure indicative of groups of excited states in 'He and He. In 'He these have excitation energies of 16.7, 18.5, and 20.5 MeV, and in He an average excitation energy of 15.6MeV. The spectroscopic factors deduced from the measurements are in good agreement with theoretical values where the latter are available.NUCLEAR REACTIONS 6Li(g, d),~Li(n, d); 56.3 MeV neutrons, measured o (0), deduced spectroscopic factors.

First measurement of the 2H(6He,7Li)n angular distribution and proton spectroscopic factor in 7Li

“…[12] and [40]. Comparing with the experimental results, ours is 34% smaller than that extracted from the 7 Li(n, d) 6 He reaction [13], and in good agreement with that from the 7 Li(e, e p) reaction by Lapikás et al [14]. …”

“…In the calculations of ( 7 Li,6 He) reactions [7][8][9][10][11], the spectroscopic factor of the 7 Li ground state was taken to be 0.59 [12]. Brady et al [13] extracted the spectroscopic factor of the 7 Li ground state to be S(p 3/2 ) = 0.62 from the 7 Li(n, d) 6 He reaction with 56.3 MeV neutrons. Lapikás et al [14] deduced the proton spectroscopic factor of 7 Li to be 0.42 ± 0.04 via the measurement of the 7 Li(e, e p) reaction.…”

Experimental evidence of the6He level atE*=18.3MeV via thePovoroznyk1, Горпинич2, Jachmenjov3 et al. 2012Phys. Rev. C102110View full textAdd to dashboardCite

“…[5] it was impossible to solve the various resonance contributions of excited states present in the region of 6 He levels included in the range between the threshold energy of 12.31 MeV for the decay into the t+t channel and the excitation energy of about 22 MeV.…”

“…In the same work, the investigation of the 6 Li( 7 Li, 6 Be) 7 He reaction at incident energy of 450 MeV has shown for the mirror 6 Be nucleus the analogous resonance at E * = 18.0 ± 1.2 MeV with a Γ width of 9.2 ± 1.0 MeV by the 6 Be * decay into the τ +τ channel. On the other hand, in the deuteron inclusive energy spectra obtained by investigation of the 7 Li(n,d) 6 He reaction [5] the 6 He states at 0.0 and 1. 6 He energy levels in the Ajzemberg-Selove (a) [2] and Tilley et al (b) [3] compilations.…”

Single nucleon transfer reactions in6Li+6Li collisions at 156 MeV

“…In fact, when analysing [1] measured 6Li(p,d)SLi [2] and 6Li(n,d)SHe [3] differential cross sections on the basis of a conventional distorted waves Born approximation (DWBA) approach, it has been found that the experimental data rather sensitively require optical potentials in the exit channels which are significantly different from the 6Li+d optical potential. By such effects, some information about optical potentials of unstable systems, otherwise hard to explore, seems to be accessible.…”