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The elastic scattering angular distribution (AD) for the 15N + 11B system at Elab(15N) = 22.5 MeV has been measured at the DC-60 cyclotron located at INP RK. In addition to our newly measured data, we have reanalyzed the previously measured 15N + 11B cross sections at Elab = 43 MeV using a range of phenomenological and microscopic potentials. The measured AD at 22.5 MeV did not exhibit a significant increase in differential cross sections (DCs) at backward angles (θ > 90°), similar to the previously measured data at Elab = 18.75 MeV and contrary to the measured data at 43 MeV. The measured DC data at backward angles are fairly described using the distorted wave Born approximation (DWBA) method. The α-spectroscopic amplitude (SA) for the 15N → 11B + α configuration was extracted and compared to the available one in the literature. [ABSTRACT FROM AUTHOR]

New experimental measurements for 16O + 12C elastic scattering angular distribution at Elab = 27 MeV were performed at the cyclotron DC-60 INP RK. The measured data as well as the previous measurements for 16O + 12C angular distributions in the energy range Elab = 20–140 MeV are subjected to detailed analysis using the double folding optical potential. For this purpose, different models of interaction potentials are used, such as the BDM3Y1-Reid and the CDM3Y1-Paris based on the M3Y interactions. The new B3Y-Fetal potentials are also tested, and the efficiency of the DDB3Y1-Fetal interaction to increase the saturation properties of cold nuclear matter was studied in comparison with the well-known BDM3Y1-Reid and CDM3Y1-Paris interactions. [ABSTRACT FROM AUTHOR]

The angular distributions of 13 C elastically scattered by 9 Be nuclei were measured at E Lab ( 13 C) = 16.25 and 19.5 MeV. The measured angular distributions were analyzed via the optical model and the DWBA within the coupled reaction channels methods. In addition to this, the previously obtained data were reanalyzed at energies E Lab = 22.75, 28.12, 36.15, 57.77 and 72.88 MeV. The aim of the study was to elucidate the role of the α -cluster transfer mechanism in the large-angle scattering. As a result of these calculations, the optimal parameters of the potentials and their energy dependence were obtained for 13 C+ 9 Be nuclear system. The data at the backward angles are fairly well reproduced. The spectroscopic amplitudes were extracted for the 13 C → 9 Be + α configuration at various energies. The results are compared with previously reported values. [ABSTRACT FROM AUTHOR]

Elastic scattering angular distribution was measured for the 10B+12C system at Elab= 17.5MeV in the angular range ofθcm= 15°–165°. The analysis of the experimental data was carried out in the framework of the optical model and the distorted-wave method (FRDWBA) using the FRESCO code. The optical model describes well the experimental crosssections in the region of the angles of the forward hemisphere, but it is notable to reproduce the observed rise of the cross sections at large angles. Only accounting for the exchange mechanism with a deuteron transfer allows us to describe the experiment in the full angular range. Spectroscopicamplitude has been extracted from the analysis for the 12C→10B +dconfiguration [ABSTRACT FROM AUTHOR]

In this study, the angular distribution of the 16O+10B elastic scattering was measured at Elab(16O) = 24 MeV. In addition to our experimental data, this nuclear system was theoretically analyzed at different energies to study the dynamics of scattering for this system. The data were analyzed within the framework of the double-folding optical potential model. The values of the spectroscopic amplitudes (SA) for the configuration 16O↑10 B+6Li were extracted at the energies at which the effect of the 6Li cluster transfer on the cross sections at backward angles is observed. The energy dependence of the reaction cross section for this system was also investigated. [ABSTRACT FROM AUTHOR]

The main purpose of this work is to find optimal optical parameters and to investigate the transfer mechanism at low energy, close to the Coulomb barrier energy for 15N+16O nuclear systems. Angular distributions were measured at the energy Ecm = 11:59 MeV using stable 15N beams and target Al2O3 with thickness 30 μg/cm². The beam of 15N was accelerated on cyclotron DC-60 (INP, Astana). Registration and identification of charged particles was conducted by ΔE-E method. The data were analyzed within the optical model (OM) and coupled reaction channels (CRC) method. The CRC calculation was used by the program code Fresco [I.J. Thompson, Comput. Phys. Rep. 7, 167 (1988)]. [ABSTRACT FROM AUTHOR]

We have measured the angular distributions for 16O elastically scattered on 12C nuclei at energy 28 MeV and also for 12C ion beam elastically scattered on 11B target nuclei at energy 18 MeV. These measurements were performed in the cyclotron DC-60 INP NNC RK. Calculations were performed using both empirical Woods-Saxon and double folding optical model potentials. Both elastic scattering and transfer reaction were taken into consideration. We have extracted the spectroscopic factors for the configurations 16O → 12C + α and 12C → 11B + p and compared them with other calculated or extracted values at different energies from literature. The extracted spectroscopic factor for the configuration 12C → 11B + p from the current work is in the range 2.7-3.1, which is very close to Cohen-Kurath prediction. While for the configuration 16O → 12C + α, spectroscopic factors show fluctuation with energy which could be due to the well-known resonant-like behavior observed in 16O + 12C excitation function. [ABSTRACT FROM AUTHOR]

This paper includes the experimental measurements for the angular distributions of 16O ion beam elastically scattered by 16O nuclei at energies 20, 24 and 28 MeV. The experimental results were analyzed within the framework of both the optical model using different complex potential and the double folding (DF) potential obtained with different density-dependent nucleon–nucleon interactions which give the corresponding values of the nuclear incompressibility K in the Hartree–Fock calculation of nuclear matter. The agreement between the experimental results and the theoretical predictions in the whole angular range is fairly good. In DF calculations, the obtained normalization coefficient Nr is in the range 0.833–1.07. [ABSTRACT FROM AUTHOR]

The main aim of this work was to describe the reactions of elastic scattering of O + C over a wide range of energies in an optical model with an l-dependent core. We obtained a value for the compressibility coefficient that agreed with the one found from data on the giant monopole resonance. We considered the elastic transfer of an α particle to reproduce the cross section in the reverse hemisphere. [ABSTRACT FROM AUTHOR]