Insights into the dynamics of breakup of the halo nucleus 11Be on a 64Zn target
| Autor: | A. M. Moro, Jin Lei, R. de Diego, A. Di Pietro |
|---|---|
| Přispěvatelé: | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Gobierno de España, European Union (UE). H2020 |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Nuclear and High Energy Physics Breakup 010308 nuclear & particles physics Scattering 11Be Dynamics (mechanics) Nuclear Theory Halo nucleus Observable 01 natural sciences 7. Clean energy lcsh:QC1-999 Nuclear physics Neutron capture 0103 physical sciences Reactions with halo nuclei Deformation (engineering) 010306 general physics Nuclear Experiment Excitation lcsh:Physics |
| Zdroj: | Physics Letters B, Vol 798, Iss, Pp-(2019) idUS. Depósito de Investigación de la Universidad de Sevilla instname idUS: Depósito de Investigación de la Universidad de Sevilla Universidad de Sevilla (US) |
| ISSN: | 0370-2693 |
| Popis: | We reexamine the elastic and breakup observables of the 11Be + 64Zn reaction at the near-barrier energy of 28.7 MeV. The measured quasi-elastic data are compared with CDCC and extended CDCC (XCDCC) calculations, the latter including the effect of the 10Be deformation. The angular distribution of emitted 10Be fragments, reported in the original analysis of this experiment, along with newly extracted 10Be energy distributions, are compared with calculations for the elastic breakup and non-elastic breakup contributions. Elastic breakup, computed with CDCC, accounts for most of the observed yields. The remaining difference (∼20%) is attributed to non-elastic breakup events (neutron absorption or target excitation) as confirmed by calculations performed with the model of Ichimura, Austern and Vincent (1985) [14]. Finally, the effect of post-acceleration in the energy distribution is investigated. This effect is well accounted for by the present CDCC calculations and, according to simple kinematical considerations, is estimated to be of the order of 1 MeV, and roughly independent of the scattering angle. Spanish Government FIS2014-53448-C2-1-P, FIS2017-88410-P European Union’s Horizon 2020, 654002 |
| Databáze: | OpenAIRE |
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