Artículo
Cluster scattering in the non-local model
Autor/es | Timofeyuk N.K.
Gómez Ramos, Mario |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2023 |
Fecha de depósito | 2023-10-18 |
Publicado en |
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Resumen | Scattering of weakly bound nuclei with a pronounced cluster structure is strongly affected by their breakup. Usually, this mechanism is accounted for in a three-body model with pairwise potentials. The interaction potentials ... Scattering of weakly bound nuclei with a pronounced cluster structure is strongly affected by their breakup. Usually, this mechanism is accounted for in a three-body model with pairwise potentials. The interaction potentials between complex systems are non-local due to the existence of excitation channels and antisymmetrization. However, a common practice is to use local optical potentials in cluster scattering studies. To assess the validity of replacing non-local optical potentials by their local equivalents, we extend the local-equivalent continuum-discretized coupled-channel (LECDCC) approach proposed by us for deuteron scattering in [Phys. Rev. C98, 011601(R) (2018)] to the case of cluster scattering. We consider the case of 6Li + 120Sn at 27 and 60 MeV, and compare the angular distributions and reaction cross sections for elastic and breakup cross sections with those obtained in the standard continuum-discretized coupled-channel (CDCC) method with local equivalents of non-local potentials. We found that while elastic scattering is not significantly affected by non-locality, the breakup observables could be affected by up to 20% depending on kinematical conditions of their observation. |
Agencias financiadoras | Science and Technology Facilities Council (STFC). United Kingdom Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía |
Identificador del proyecto | ST/V001108/ 1
PID2020-114687GB-I00 IJC2020-043878-I P20_01247 |
Cita | Timofeyuk N.K., y Gómez Ramos, M. (2023). Cluster scattering in the non-local model. Frontiers in Physics, 11, 1197726. https://doi.org/10.3389/fphy.2023.1197726. |
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Cluster scattering.pdf | 1.350Mb | [PDF] | Ver/ | |