Energy levels of light nuclei A = 18–19

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)Fujita1, Fujita2, Adachi3 et al. 2015Phys. Rev. C4391090View full textAdd to dashboardCite

“…of the neighboring T z = ±1 nuclei, are also strong. Strong GT transitions are actually observed in the 6 Li(p, n) 6 Be reaction [76] and the 18 F → 18 O β decay [74].…”

“…of final nuclei. These GT transitions have very small logf t values of 2.9059 (7) [corresponding to the B(GT) value of 4.73 (2)] and 3.091 (4) [corresponding to the B(GT) value of 3.09(3)], respectively [73,74]. In addition, from the 18 O(p, n) 18 F spectrum at 0 • measured up to E x = 20 MeV [75], we can confirm that the main part of the GT strength is concentrated in the g.s.…”

Nuclear astrophysics in the laboratory and in the universe

“…For example, in explosive Ne/C burning, the 26 Al abundance depends almost linearly on the rate of the 25 Mg(α,n) 28 Si reaction (assuming that the ground state and the isomeric first-excited state of 26 Al are in thermal equilibrium). 17 The reason for this is that the (α,n) reaction reduces the reservoir of 25 Mg that can be converted to 26 Al via the 25 Mg(p,γ ) 26 Al. Sensitivity studies of this sort are necessary precursors to future experiments.…”

Measurement of Charged-Particle Emission Double-Differential Cross Section of Fluorine for 14.2MeV Neutrons

“…In the upper side of the graphs, the ground and excited states of the residual nuclei that can contribute to these reactions are indicated. [14][15][16] In Figs. 10 and 13, the energy ranges where charged particles emitted in the 19 F(n,n 0 +p) 18 O and 19 F(n,n 0 + ) 15 N reactions can kinematically appear are also indicated.…”