Antinucleon-Nucleon Interaction in a Coupled-Channel Approach with Separable Potentials

1985 ◽  
pp. 605-613
Author(s):  
W. Schweiger ◽  
W. Plessas ◽  
J. Haidenbauer
Keyword(s):  
Nucleon Interaction ◽  
Separable Potentials ◽  
Coupled Channel

Off-shell resonances in coupled channel problems

1979 ◽  
Vol 57 (6) ◽  
pp. 801-808 ◽  
Author(s):  
G. Pantis
Keyword(s):  
Nuclear Reactions ◽  
Bound State ◽  
Direct Reaction ◽  
Background Term ◽  
Separable Potentials ◽  
State Behaviour ◽  
Square Well ◽  
T Matrix ◽  
Coupled Channel ◽  
Channel Theory

The coupled channel theory of nuclear reactions is extended off the energy shell so that the T-matrix can be constructed to include both the direct reaction contribution and the contribution from the off-shell background scattering. This has been shown to be important for (d,p) stripping reactions to unbound states. Three soluble two-channel models with square well, δ-function, and separable potentials, are presented and the resonance and bound state behaviour is discussed in some numerical detail. The importance of the off-shell background term is also studied.

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 Coupled-Channel Interpretation of the LHCb Double- J/ψ Spectrum and Hints of a New State Near the J/ψJ/ψ Threshold

2021 ◽  
Vol 126 (13) ◽  
Author(s):  
Xiang-Kun Dong ◽  
Vadim Baru ◽  
Feng-Kun Guo ◽  
Christoph Hanhart ◽  
Alexey Nefediev
Keyword(s):  
Coupled Channel

scholarly journals Nucleon-Nucleon Interaction at High Energies

1950 ◽  
Vol 5 (2) ◽  
pp. 318-318
Author(s):  
F. Fujimoto ◽  
S. Hayakawa ◽  
Y. Yamaguchi
Keyword(s):  
Nucleon Nucleon ◽  
Nucleon Interaction ◽  
High Energies ◽  
Nucleon Nucleon Interaction
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