Investigation of large α production in reactions involving weakly bound 7Li
Abstract
The origin of the large α -particle production cross sections in systems involving weakly bound 7Li projectiles has been investigated by measuring the cross sections of all possible fragment-capture as well as complete fusion using the particle-γ coincidence, in-beam, and off-beam γ -ray counting techniques for the 7Li+93Nb system at near Coulomb barrier energies. Almost all of the inclusive α -particle yield has been accounted for. While the t -capture mechanism is found to be dominant (∼70 % ), compound nuclear evaporation and breakup processes contribute ∼15 % each to the inclusive α -particle production in the measured energy range. Systematic behavior of the t capture and inclusive α cross sections for reactions involving 7Li over a wide mass range is also reported.
- Publication:
-
Physical Review C
- Pub Date:
- October 2017
- DOI:
- 10.1103/PhysRevC.96.044616
- Bibcode:
- 2017PhRvC..96d4616P