Applicability of ⁹Be global optical potential to description of ^8,10,11B elastic scattering *

Abstract

We achieved a set of 9Be global phenomenological optical model potentials by fitting a large experimental dataset of the elastic scattering observable for target mass numbers from 24 to 209. The obtained 9Be global optical model potential was applied to predict elastic-scattering angular distributions and total reaction cross-sections of 8,10,11B projectiles. The predictions are made by performing a detailed analysis comparing with the available experimental data. Furthermore, these elastic scattering observables are also predicted for some lighter targets outside of the given mass number range, and reasonable results are obtained. Possible physical explanations for the observed differences are also discussed.

Reaction 14C(11B, 12C)13B at Elab(11B) = 45 MeV, interaction of 13B + 12C versus that of 10,11,12B + 12C

“…In this work, we continue the investigation of reaction 14 C( 11 B, 12 C) 13 B at E lab ( 11 B) = 45 MeV with the main purpose as to deduce the Woods -Saxon (WS) potential for the final state interaction of 13 B + 12 C nuclei produced in the exit reaction channel, as well to compare it (study the isotopic differences) with the respective WS potentials deduced previously for the 12 B + 12 C [8], 11 B + 12 C [9] and 10 B + 12 C [10] interacting systems. As our recent publication [11] was focused on the study of spectroscopic properties of the interacting nuclei in this reaction 14 C( 11 B, 12 C) 13 B at E lab ( 11 B) = 45 MeV, namely the extraction of the asymptotic normalization coefficient (ANC) for the 14 C → 13 B + p overlap, so the experimental part was presented very briefly as well as the interaction potentials, used for the best-fit coupled reaction channels (CRC) calculations, were not compared with the respective interaction potentials of other neighbouring nuclei.…”

“…For the study of the nuclear structure of boron isotopes and properties of their interaction with other nuclei, a lot of experimental and theoretical work has been performed up to date, with the use of stable 10,11 B isotopes serving as projectiles or targets in many direct experiments, as much fewer experiments have been performed with secondary 8,[12][13][14][15][16][17] B beams, thus the properties of unstable boron isotopes were investigated mainly through reactions in which they were produced as outgoing or residual nuclei. In particular, secondary beams of 13 B and other unstable boron isotopes were used in [1] with the aim to determine the radii of proton point distributions in [12][13][14][15][16][17] B.…”

“…For the study of the nuclear structure of boron isotopes and properties of their interaction with other nuclei, a lot of experimental and theoretical work has been performed up to date, with the use of stable 10,11 B isotopes serving as projectiles or targets in many direct experiments, as much fewer experiments have been performed with secondary 8,[12][13][14][15][16][17] B beams, thus the properties of unstable boron isotopes were investigated mainly through reactions in which they were produced as outgoing or residual nuclei. In particular, secondary beams of 13 B and other unstable boron isotopes were used in [1] with the aim to determine the radii of proton point distributions in [12][13][14][15][16][17] B. Concerning the structure of 13 B, it was investigated in several indirect experiments such as [2] to probe the spectroscopy of [13][14][15][16] B using multi-nucleon transfer reactions, or in [3] via the 12 B(d, p) 13 B and in [4] via the 15 C(d, α) 13 B reactions performed in inverse kinematics, as well as in [5] by the use of the reaction 13 C(t, 3 He) 13 B.…”

“…In [6], spectroscopic information about the final states of 13 B and 14 B was obtained from the reactions 14,15 C(d, 3 He) 13,14 B also performed in inverse kinematics. In [7], the (d, p) reaction was used to determine the 11,12 B(n, γ) reaction rates and their influence on r-process nucleosynthesis for different astrophysical implications.…”

“…Thus, in this paper, we provide some more details and discussion regarding the above-mentioned issues. Finally, a test of the recently published global optical model (OM) potential for 8,10,11 B projectiles [12] is performed by its application to describe the interaction of 12 C + 13 B nuclei in the exit channel of the reaction 14 C( 11 B, 12 C) 13 B, as, at least, predicted matter radii of 10 B and 13 B differ by less than 0.1 fm 13 [13], so this potential with modifications proposed in [14] is used directly for the entrance 11 B + 14 C reaction channel and tested, with or without any modifications, for the exit 13 B + 12 C reaction channel.…”