Perspectives on Few-Body Cluster Structures in Exotic Nuclei

Bazin, D.; Becker, Kevin G.; Bonaiti, Francesca; Elster, Ch.; Fossez, K.; Frederico, T.; Gnech, Alex; Hebborn, Chloë; Higgins, Michael D.; Hlophe, L.; Kay, B. P.; König, S.; Kravvaris, Konstantinos; Lubián, J.; Macchiavelli, A. O.; Nunes, F. M.; Platter, Lucas; Potel, G.; Zhang, Xilin

doi:10.1007/s00601-023-01794-0

Cited by 2 publications

(19 citation statements)

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Section: Leading-order Local-equivalent Cdccmentioning

confidence: 99%

“…We apply the aforementioned formalism to 6 Li+ 120 Sn scattering at two 6 Li incident energies, 27 MeV and 60 MeV, near and above the Coulomb barrier, respectively. 6 Li has a well-developed α − d cluster structure due to its small deuteron separation energy of 1.47 MeV. Since a non-local potential for α-d scattering is not available, to describe the continuum states of the 6 Li projectile, we used a local model with the same potential as in [33] to generate α-d continuum bins.…”

Section: Leading-order Local-equivalent Cdccmentioning

confidence: 99%

“…Scattering of weakly bound nuclei with a pronounced cluster structure is at the frontier of modern experimental nuclear research [5,6]. The information obtained from these studies is affected by the choice of theoretical models used to predict and/or analyze the measured observables.…”

Section: Introductionmentioning

confidence: 99%

“…We then compare the LECDCC predictions to those obtained in standard CDCC with localequivalent potentials. We perform calculations for a popular choice of the projectile, 6 Li, which is well represented by the α − d cluster structure.…”

Section: Introductionmentioning

confidence: 99%

“…We start by formulating a three-body model for cluster scattering in Section 2, followed by developing LECDCC at the leading order in Section 3. In Section 4, we apply the formalism to the case of 6 Li + 120 Sn scattering using non-local Sao Paulo potentials [26][27][28] comparing LECDCC with traditional CDCC, in which local-equivalent potentials are used. Section 5 summarizes the work undertaken and draws conclusion.…”

Section: Introductionmentioning

confidence: 99%

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Cluster scattering in the non-local model

Timofeyuk

Gómez-Ramos

2023

Front. Phys.

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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.

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Section: Leading-order Local-equivalent Cdccmentioning

confidence: 99%