scholarly journals Theoretical Inspecting of 211At Radionuclide via Coupled-Channel Model for Fusion Reaction of Stable Nuclei

2021 ◽  
Vol 47 (3) ◽  
pp. 163
Author(s):  
Z. M. Cinan ◽  
T. Başkan ◽  
B. Erol ◽  
A. H. Yılmaz
Keyword(s):  
Channel Model ◽  
Fusion Reaction ◽  
Coupled Channel

scholarly journals Heavy-Ion Fusion Reaction Calculations: Establishing the Theoretical Frameworks for 111In Radionuclide over the Coupled Channel Model

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8594
Author(s):  
Zehra Merve Cinan ◽  
Burcu Erol ◽  
Taylan Baskan ◽  
Ahmet Hakan Yilmaz
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Channel Model ◽  
Fusion Reaction ◽  
Heavy Ion ◽  
Fusion Reactions ◽  
Theoretical Frameworks ◽  
Wong’S Formula ◽  
Heavy Ion Fusion ◽  
Coupled Channel

In this work, the production of 111In radionuclide has been investigated theoretically via heavy-ion fusion reactions of two stable nuclei: 37Cl+ 74Ge, 26Mg+ 85Rb, 30Si+ 81Br, and 46Ca+ 65Cu reactions. Fusion cross-sections, barrier distributions, and potential energies on mutual orientations in the reactions planes of all reactions have been researched in detail around the barrier region via a coupled channel (CC) model using different codes. First of all, the most suitable codes and calculation parameter sets were determined through the 37Cl+ 74Ge reaction, whose experimental data were available. The compatibility of the calculations via NRV knowledge base, CCFULL, CCDEF codes, and Wong’s formula with experimental data was analyzed. Barrier distributions and cross-sections for heavy-ion fusion reactions have been investigated with miscellaneous codes and vibrational-rotational nuclei combinations for interacting nuclei. Afterward, calculations were made with the determined parameter values for new reaction suggestions (26Mg+ 85Rb, 30Si+ 81Br, and 46Ca+ 65Cu reactions) and the results were compared. This study aims to suggest the new reaction combinations for the production of 111In radionuclide, to explore the impacts of different calculation codes and nuclear parameter combinations on the heavy-ion fusion cross-sections and barrier distributions, to demonstrate that the results are reliable, and to emphasize the importance of developing these studies in the preparation of new experiments.

scholarly journals Analytical version of the resonance coupled-channel model for D + T → 5He** → α + n reaction and its application for the description of low-energy D-T and D- 3He scattering

2019 ◽  
Vol 5 (3) ◽  
pp. 231-235
Author(s):  
Alexander I. Godes ◽  
Anna S. Kudriavtseva ◽  
Vladimir L. Shablov
Keyword(s):  
Channel Model ◽  
Good Description ◽  
Scattering Length ◽  
Fusion Reaction ◽  
Effective Range ◽  
Model Parameters ◽  
Matrix Elements ◽  
S Matrix ◽  
Nuclear Fusion Reaction ◽  
Coupled Channel

The purpose of the present paper is the formulation of the analytical version of the resonance coupled-channel model (RCCM) originally developed for D + T → 5He** → α + n nuclear fusion reaction. The integral in the denominator of the Breit-Wigner type is examined in the expression for S-matrix elements of binary processes in this model. Imaginary part of this integral determines the energy-dependent decay width for the near-threshold channel. It is demonstrated that this integral can be calculated explicitly with the Binet representation for the ψ-function (the logarithmic derivation of the gamma function). As the result the explicit expression for the S-matrix elements in the form of analytical functions of the channel momenta are obtained and the equivalence of the RCCM and the effective range approximation (Landau – Smorodinsky – Bethe approximation) is established on this basis. This allows expressing the parameters of the RCCM through the model independent system characteristics: the complex scattering length and the complex effective range. Several sets of model parameters of both approaches that provide a good description of the measured data on D + T → α + n reaction and D-T elastic scattering are derived. By this means we find the location of the S – matrix poles on different Riemann sheets which corresponds to Jπ = (3/2)+ state of 5He and 5Li nuclei. In particular, the location of the resonance (R) and shadow (S) poles is determined: 5He**: ZR = 46.9 – i37.2 (keV) ZS = 81.7 – i3.5 (keV) 5Li**: ZR = 205.7 – i146.8 (keV) ZS = 264.4 + i112.0 (keV). Our results agree well with previous findings. The possible generalizations of the results obtained are discussed.

Fusion and Breakup Reactions of 17S + 208Pb and 15C + 232ThHalo Nuclei Systems

2015 ◽  
Vol 11 (2) ◽  
pp. 2972-2978
Author(s):  
Fouad A. Majeed ◽  
Yousif A. Abdul-Hussien
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Fusion Reaction ◽  
Fusion Cross Section ◽  
Reaction Cross ◽  
Recent Experimental Data ◽  
Barrier Distribution ◽  
Coupled Channel ◽  
Total Fusion ◽  
Full Quantum

In this study the calculations of the total fusion reaction cross section have been performed for fusion reaction systems 17F + 208Pb and 15C + 232Th which involving halo nuclei by using a semiclassical approach.The semiclassical treatment is comprising the WKB approximation to describe the relative motion between target and projectile nuclei, and Continuum Discretized Coupled Channel (CDCC) method to describe the intrinsic motion for both target and projectile nuclei. For the same of comparsion a full quantum mechanical clacualtions have been preforemd using the (CCFULL) code. Our theorticalrestuls are compared with the full quantum mechaincialcalcuations and with the recent experimental data for the total fusion reaction  checking the stability of the distancesThe coupled channel calculations of the total fusion cross section σfus, and the fusion barrier distribution Dfus. The comparsion with experiment proves that the semiclassiacl approach adopted in the present work reproduce the experimental data better that the full quantal mechanical calcautions. 

scholarly journals Leptonic widths of high ψ -resonances in a unitary coupled-channel model

2017 ◽  
Vol 96 (1) ◽  
Author(s):  
A. M. Badalian ◽  
B. L. G. Bakker
Keyword(s):  
Channel Model ◽  
Coupled Channel

Giessen coupled-channel model for pion- and photon-induced reactions

2012 ◽  
Author(s):  
V. Shklyar ◽  
H. Lenske ◽  
U. Mosel
Keyword(s):  
Channel Model ◽  
Coupled Channel

Predissociation of the B Σu−3 state of S2: A coupled-channel model

2018 ◽  
Vol 148 (24) ◽  
pp. 244303 ◽  
Author(s):  
B. R. Lewis ◽  
S. T. Gibson ◽  
G. Stark ◽  
A. N. Heays
Keyword(s):  
Channel Model ◽  
Coupled Channel

New comparisons of the coupled-channel model with elastic deuteron form factors

1989 ◽  
Vol 40 (3) ◽  
pp. 1541-1544 ◽  
Author(s):  
P. G. Blunden ◽  
W. R. Greenberg ◽  
E. L. Lomon
Keyword(s):  
Channel Model ◽  
Form Factors ◽  
Coupled Channel

Coupled-channel model for the 3π propagation in nuclei

1976 ◽  
Vol 34 (2) ◽  
pp. 193-209 ◽  
Author(s):  
L. Bertocchi ◽  
D. Treleani
Keyword(s):  
Channel Model ◽  
Coupled Channel

scholarly journals Masses and OZI-Allowed Decay Widths of ϒ States in a Coupled Channel Model

2001 ◽  
Vol 106 (2) ◽  
pp. 389-400 ◽  
Author(s):  
Nozomi Yabusaki ◽  
Masanobu Hirano ◽  
Kiyoshi Katō ◽  
Motoki Sakai ◽  
Yasuo Matsuda
Keyword(s):  
Channel Model ◽  
Decay Widths ◽  
Coupled Channel
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