Coupled reaction channels effects in the elastic scattering ofS32,36+58,64Ni

1990 ◽  
Vol 41 (3) ◽  
pp. 1018-1030 ◽  
Author(s):  
A. M. Stefanini ◽  
A. Tivelli ◽  
G. Montagnoli ◽  
D. R. Napoli ◽  
D. Bonamini ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Reaction Channels ◽  
Coupled Reaction

scholarly journals Elastic and inelastic scattering of 15N ions by 13C nuclei at energy 84 MeV

2021 ◽  
Vol 22 (1) ◽  
pp. 10-18
Author(s):  
A.T. Rudchik ◽  
◽  
A.A. Rudchik ◽  
O.E. Kutsyk ◽  
K. Rusek ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Inelastic Scattering ◽  
Transfer Reactions ◽  
Coupling Scheme ◽  
Elastic And Inelastic Scattering ◽  
Deformation Parameters ◽  
Cluster Transfer ◽  
Reaction Channels ◽  
Potential Parameters ◽  
Coupled Reaction

New experimental data of the 15N + 13C elastic and inelastic scattering were obtained at the energy Elab(15N) = 84 MeV. The data were analyzed within the coupled-reaction-channels method. The elastic and inelastic scattering of nuclei 15N + 13С as well as the more important nucleon and cluster transfer reactions were included in the channels-coupling scheme. The WS potential parameters for the 15N + 13С nuclei interactions in ground and excited states as well as deformation parameters of these nuclei were deduced. The contributions of one- and two-step transfers in the 15N + 13C elastic and inelastic scattering were estimated. The results of the 15N + 13С elastic scattering at the energy Elab(15N) = 84 MeV, obtained in this work, were compared with that of the 15N + 12С elastic scattering at the energy Elab(15N) = 81 MeV.

Comparison of 7Li , 7Be + 9Be elastic scattering in the coupled-reaction-channels approach

2009 ◽  
Vol 41 (1) ◽  
pp. 31-37 ◽  
Author(s):  
A. T. Rudchik ◽  
K. W. Kemper ◽  
V. O. Romanyshyn ◽  
O. A. Ponkratenko ◽  
V. M. Kyryanchuk ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Reaction Channels ◽  
Coupled Reaction

scholarly journals Study of cluster structures in nuclei through the ratio method

2020 ◽  
Vol 56 (12) ◽  
Author(s):  
Pierre Capel ◽  
Ronald C. Johnson ◽  
Filomena M. Nunes
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Intermediate Energy ◽  
Halo Nuclei ◽  
Ratio Method ◽  
Angular Distributions ◽  
Neutron Halo ◽  
Target Interaction ◽  
Nuclear Systems ◽  
Reaction Channels

AbstractFor one-neutron halo nuclei, the cross sections for elastic scattering and breakup at intermediate energy exhibit similar angular dependences. The Recoil Excitation and Breakup (REB) model of reactions elegantly explains this feature. It also leads to the idea of a new reaction observable to study the structure of loosely-bound nuclear systems: the Ratio. This observable consists of the ratio of angular distributions for different reaction channels, viz. elastic scattering and breakup, which cancels most of the dependence on the reaction mechanism; in particular it is insensitive to the choice of optical potentials that simulate the projectile-target interaction. This new observable is very sensitive to the structure of the projectile. In this article, we review a series of previous papers, which have introduced the Ratio Method and its extension to low beam energies and proton-halo nuclei.

scholarly journals ELASTIC AND INELASTIC ALPHA TRANSFER IN THE 16O+12C SCATTERING

2021 ◽  
Vol 31 (4) ◽  
Author(s):  
Phuc Hoang Nguyen ◽  
Phuc Tri Toan Nguyen ◽  
Khoa Tien Dao
Keyword(s):  
Cross Section ◽  
Heavy Ion ◽  
Scattering Cross Section ◽  
Transition Strength ◽  
Valence Nucleon ◽  
The Core ◽  
Scattering Cross ◽  
Oscillatory Pattern ◽  
Reaction Channels ◽  
Coupled Reaction

The elastic scattering cross section measured at energies $E\lesssim 10$ MeV/nucleon for some light heavy-ion systems having two identical cores like \oc exhibits an enhanced oscillatory pattern at the backward angles. Such a pattern is known to be due to the transfer of the valence nucleon or cluster between the two identical cores. In particular, the elastic $\alpha$ transfer has been shown to originate directly from the core-exchange symmetry in the elastic \oc scattering. Given the strong transition strength of the $2^+_1$ state of $^{12}$C and its large overlap with the $^{16}$O ground state, it is natural to expect a similar $\alpha$ transfer process (or inelastic $\alpha$ transfer) to take place in the inelastic \oc scattering. The present work provides a realistic coupled channel description of the $\alpha$ transfer in the inelastic \oc scattering at low energies. Based on the results of the 4 coupled reaction-channels calculation, we show a significant contribution of the $\alpha$ transfer to the inelastic \oc scattering cross section at the backward angles. These results suggest that the explicit coupling to the $\alpha$ transfer channels is crucial in the studies of the elastic and inelastic scattering of a nucleus-nucleus system with the core-exchange symmetry.\Keywords{optical potential, coupled reaction channels, inelastic $\alpha$ transfer

Coupled-Reaction-Channels Study of (h,t) Reactions

1973 ◽  
Vol 7 (3) ◽  
pp. 1154-1165 ◽  
Author(s):  
W. R. Coker ◽  
T. Udagawa ◽  
H. H. Wolter
Keyword(s):  
Reaction Channels ◽  
Coupled Reaction

Spectroscopic information of 6Li from elastic scattering of deuterons, 3He and 4He by 6Li

2014 ◽  
Vol 23 (08) ◽  
pp. 1450041
Author(s):  
A. Amar
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Optical Potential ◽  
Wide Energy Range ◽  
Spectroscopic Information ◽  
Wide Energy ◽  
Double Folding ◽  
Potential Parameters ◽  
Coupled Reaction ◽  
Good Agreement

The elastic scattering of deuterons, 3 He and 4 He on 6 Li at different incident energies have been analyzed in the framework of the optical model (OM) using ECIS88 as well as SPI GENOA codes. The optical potential parameters were extracted in the phenomenological treatment. A good agreement between theoretical and experimental differential cross-sections was obtained in whole angular range. Parameters for real part of potential have been also calculated microscopically with double-folding model for the d, 3 He and 4 He scattering, respectively, using DFPOT code. The elastic transfer mechanism has been studied by coupled reaction channel (CRC) method using FRESCO code. Spectroscopic amplitudes of 6 Li ≡ t + 3 He and 6 Li ≡ α + d configurations have been extracted from d, 3 He and 4 He scattering on 6 Li at wide energy range. A comparison between spectroscopic amplitudes obtained from deuteron and α elastically scattering from 6 Li has been made. The extracted spectroscopic amplitudes of 6 Li ≡ 4 He + d( SF = SA 2) from 6 Li (d, 6 Li )d and 6 Li (α, 6 Li )α are not the same as expected theoretically.

8Be DIRECT TRANSFER IN α+12C INELASTIC SCATTERING AND SIGNATURES OF THE ALPHA PARTICLE CONDENSATION IN THE NEAR-3α THRESHOLD STATES OF 12C

2011 ◽  
Vol 20 (04) ◽  
pp. 966-970 ◽  
Author(s):  
T. L. BELYAEVA ◽  
A. S. DEMYANOVA ◽  
A. A. OGLOBLIN ◽  
S. A. GONCHAROV
Keyword(s):  
Ground State ◽  
Orbital Motion ◽  
Direct Transfer ◽  
Hoyle State ◽  
Model Calculations ◽  
Relative Angular Momentum ◽  
Cluster Configuration ◽  
Reaction Channels ◽  
Condensed Structure ◽  
Coupled Reaction

The coupled reaction channels model calculations of the direct 8 Be transfer in the α+12 C elastic and inelastic (to the 7.65 MeV [Formula: see text] and the 9.65 MeV [Formula: see text] states) scattering have been performed. It is shown that the cluster configuration with zero relative angular momentum dominates in [Formula: see text] state being 4.4 times larger than that in the ground state. In the [Formula: see text] state, a dominance of the p-orbital motion is found. The condensed properties are confirmed in the Hoyle state. The 3α exotic, but hardly a condensed structure of the [Formula: see text] state is found.

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