First-order and higher-order interferences in theC15+Pb208andBe11+Pb208reactions
| Autor: | M.L. Lekala, B. Mukeru |
|---|---|
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Physical Review C. 91 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.91.064609 |
| Popis: | First-order and higher-order interferences effects on the total, Coulomb, and nuclear breakup cross sections in the C15+Pb208 and Be11+Pb208 reactions are studied at 68 MeV/u incident energy. A partial-wave analysis is first performed, and shows that the differential total breakup cross sections are dominated by the p waves. However, considered alone, they largely underestimate the data, hence the importance of the other partial-wave contributions. It is also shown that the first-order interference reduces by more than 60% the total breakup cross sections, by less than 3% the Coulomb breakup cross sections, and by more than 85% the nuclear breakup cross sections, for both reactions. On the other hand, the higher-order interferences are found to reduce by less than 9% the total breakup cross section, less than 1% the Coulomb breakup cross section, and less than 7% the nuclear breakup cross section for the C15+Pb208 reaction. For the Be11+Pb208 reaction however, the higher-order interference reduces by less than 7% the total breakup cross section, by less than 1% the Coulomb breakup cross section, and by less than 4% the nuclear breakup cross section. It is finally shown that even at first order, the incoherent sum of the nuclear breakup cross sections is more important than the incoherent sum of the Coulomb breakup cross sections for the two reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|