Radiative¹⁰Be(n,γ)¹¹Be capture at thermal and astrophysical energies

Abstract

The modified potential cluster model with the forbidden states and the classification of states according to the Young tableaux, which are irreducible representations of permutation symmetric group SU(4), was used in this paper. Within the framework of this model the possibility of describing the experimental data available for the total reaction cross sections and the reaction rate of neutron radiative capture on 10 Be at thermal and astrophysical energies has been shown.

Study of the nucleon radiative captures 8Li(n,γ)9Li, 9Be(p,γ)10B, 10Be(n,γ)11Be, 10B(p,γ)11C, and 16O(p,γ)17F at thermal and astrophysical energies

“…Results for A NC of Ref. 113 are presented in Table 5 from paper 116 -with additional results from another study. 39 In addition to this, a relatively large amount of data for the spectroscopic factors of the n 10 Be channel of 11 Be is contained in a further study, 110 so we give their values in the separate Table 6.…”

“…11 by the dashed line. 116 The cross sections for the Е1 transition No. 2 from the 2 S 1/2 + 2 D 3/2 scattering wave with the potential (19) for L = 0 and 2 to the 2 P 1/2 FES with the potential (22) are shown by the dotted line.…”

New results for radiative proton capture on 16O at astrophysical energies

“…Furthermore, in [13,14] in the MPCM with tensor forces the possibility of the correct reproduction practically of all characteristics of 6 Li was demonstrated, including its quadrupole momentum. Subsequently, in [15][16][17][18] on the basis of the MPCM we have presented the possibility of description of the astrophysical S-factors or the total cross sections of almost 30 radiative capture processes, namely, p 2 H, n 2 H, p 3 H, p 6 Li, n 6 Li, p 7 Li, n 7 Li, p 9 Be, n 9 Be, p 10 B, n 10 B, p 11 B, n 11 B, p 12 C, n 12 C, p 13 C, n 13 C, p 14 C, n 14 C, n 14 N, p 15 N, n 15 N, n 16 O and 2 H 4 He, 3 He 4 He, 3 H 4 He, 4 He 12 C systems at thermal and astrophysical energies (see also [2][3][4][5][6][7]). Continuing study of thermonuclear reactions in the frame of the modified potential cluster model with forbidden states [15][16][17][18] let us consider the 16 O(p,) 17 F process, which takes part of the CNO cycle [15,16] and has additional interest, since it is the reaction at the last nucleus of 1p-shell with the forming of 17 F that get out its limit.…”

Radiative p 16O Capture at Astrophyiscal Energies

“…Previously, in [1] on the basis of the modified potential cluster model (MPCM) [2][3][4][5][6][7][8] the possibility of description the coulomb form-factors of lithium nuclei was shown. This model uses intercluster potentials obtained on the basis of the elastic scattering phase shifts [9], taking into account the presence of the forbidden states (FSs) in wave functions (WFs) of system [10,11].…”

“…Furthermore, in [15,16] in the MPCM with tensor forces the possibility of the correct reproduction practically of all characteristics of 6 Li was demonstrated, including its quadrupole moment. Subsequently, in [17][18][19][20] on the basis of the MPCM we have presented the possibility of description of the astrophysical S-factors or the total cross sections of almost 30 He, 4 He 12 C systems at thermal and astrophysical energies (see also [3][4][5][6][7][8]). …”