scholarly journals Describing heavy-ion fusion with quantum coupled-channels wave-packet dynamics

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Terence Vockerodt ◽  
Alexis Diaz-Torres
Keyword(s):  
Wave Packet ◽  
Heavy Ion ◽  
Wave Packet Dynamics ◽  
Coupled Channels ◽  
Heavy Ion Fusion

scholarly journals Fusion hindrance in light and heavy systems

2019 ◽  
Vol 223 ◽  
pp. 01041
Author(s):  
Giovanna Montagnoli
Keyword(s):  
Theoretical Work ◽  
Heavy Ion ◽  
General Phenomenon ◽  
Quantitative Evidence ◽  
Coupled Channels ◽  
S Factor ◽  
Low Energies ◽  
Show Evidence ◽  
Heavy Ion Fusion ◽  
Transfer Channels

The phenomenon of hindrance in sub-barrier heavy-ion fusion has been confirmed by several experimentalevidences and it is now recognised as a general phenomenon of heavy-ion fusion process. In many cases the signature of fusion hindrance lies in the trend of the logarithmic slope of the excitation function and of the S factor at low energies. The comparison with stadard Coupled-Channels calculations is a more quantitative evidence for its existence. In many medium-heavy systems the hindrance effect has been recognised with different features depending on the various couplings to the inelastic and transfer channels. Different theoretical appro ches have been proposed to explain the hindrance but the underlying physics is still a matter of debate. Hindrance is observed in light systems, independent of the sign of the fusion Q-value, with different features. In the case of the 12C + 30Si system the effect is smallbut it is clearly observed. Near-by cases show evidence for systematic behaviours. A very recent experiment has concerned the lighter case 12C + 24Mg where hindrance shows up clearly, because a maximum of the S factor appears already at a relatively high cross section σ=1.6mb. The consequences for the dynamics of stellar evolution have to be clarified by further experimental and theoretical work.

Semiclassical coupled channels calculations in heavy-ion fusion reaction

2017 ◽  
Vol 11 ◽  
pp. 415-427 ◽  
Author(s):  
Fouad A. Majeed ◽  
Radhi Sh. Hamodi ◽  
Fatima M. Hussian
Keyword(s):  
Fusion Reaction ◽  
Heavy Ion ◽  
Coupled Channels ◽  
Heavy Ion Fusion

scholarly journals Wave packet dynamics in Yang-Mills theory

1995 ◽  
Vol 52 (4) ◽  
pp. 2402-2411 ◽  
Author(s):  
C. R. Hu ◽  
S. G. Matinyan ◽  
B. Müller ◽  
A. Trayanov ◽  
T. M. Gould ◽  
...  
Keyword(s):  
Wave Packet ◽  
Yang Mills ◽  
Wave Packet Dynamics
Sign in / Sign up

Export Citation Format

Share Document