Angular Distributions of Deuteron-Induced Reactions in Lithium

Mechanism of the $^{7}$Li($d,t$)$^{6}$Li Reaction at 25 MeV Energy of Deuterons, Values of Spectroscopic Factors and Asymptotic Normalization Coefficients for the $^{7}$Li $\rightarrow $ $^{6}$Li + $n$ Vertex

“…Current technologies of thermonuclear synthesis require knowledge of the interaction cross sections of light nuclei (Z ≤ 4) with high accuracy. The 7 Li(d, t) 6 Li reaction with the production of tritium is of particular interest for applications [1]. Unfortunately, information about it is very limited, as we shall see below.…”

“…Unfortunately, information about it is very limited, as we shall see below. Another aspect is related to the problem of lithium isotopes in the standard big bang nucleosynthesis: overestimation of 7 Li and underestimation of 6 Li abundances [2,3]. In particular, all reactions which come to 6,7 Li formation or destroy should be inspected.…”

“…Another aspect is related to the problem of lithium isotopes in the standard big bang nucleosynthesis: overestimation of 7 Li and underestimation of 6 Li abundances [2,3]. In particular, all reactions which come to 6,7 Li formation or destroy should be inspected. Previously obtained values of the asymptotic normalization coefficient (ANC) for the 7 Be → 6 Li + p system would be useful to compare with the value of ANC for the mirror configuration 7 Li → 6 Li + n, which can be obtained from the analysis of the experimental cross sections of the 7 Li(d, t) 6 Li reaction with potentials describing the interaction of deuterons with 7 Li and t ( 3 He) with 6 Li nuclei.…”

“…In particular, all reactions which come to 6,7 Li formation or destroy should be inspected. Previously obtained values of the asymptotic normalization coefficient (ANC) for the 7 Be → 6 Li + p system would be useful to compare with the value of ANC for the mirror configuration 7 Li → 6 Li + n, which can be obtained from the analysis of the experimental cross sections of the 7 Li(d, t) 6 Li reaction with potentials describing the interaction of deuterons with 7 Li and t ( 3 He) with 6 Li nuclei. Such analysis is usually carried out in the framework of the optical model and distorted-wave Born approximation (DWBA).…”

“…The (d, t) reaction on the 7 Li nuclei were previously studied at 12 MeV [4,5], 15 MeV [6,7], 18 MeV [8], 20 MeV [9] and 28 MeV [10] energies. The measurements in the full angular range were done at E d = 12 MeV [4] only.…”