Subbarrier fusion reactions with dissipative couplings

✍ Scribed by K. Hagino; S. Yusa; N. Rowley

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 159 KB
• Volume: 834
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2009.12.022

✦ Synopsis

Using the random matrix model, we discuss the effect of couplings to non-collective states on the penetrability of a one dimensional potential barrier. We show that these non-collective excitations hinder the penetrability and thus smear the barrier distribution at energies above the barrier, while they do not affect significantly the penetrability at deep subbarrier energies. The energy dependence of the Q-value distribution obtained with this model is also discussed.