Sensitivity of one-neutron knockout of halo nuclei to their nuclear structure
- Publication type:
- Journal article
- Metadata:
-
- Abstract
- <jats:title>Abstract</jats:title> <jats:p>Halo nuclei are located far from stability and exhibit a very peculiar structure. Due to their very short lifetime, they are often studied through reactions. Breakup reactions are of particular interest since their cross sections are large for these loosely-bound nuclei. Inclusive measurements of breakup–also called knockout reactions-have even higher statistics. In this proceeding, we study which nuclear-structure information can be inferred from the parallel-momentum distribution of the core of one-neutron halo nuclei after the knockout of its halo neutron. In particular, we analyse the influence of the ground-state wavefunction, the presence of excited states within the halo-nucleus spectrum and resonances in the core-neutron continuum. Our analysis shows that such observables are sensitive to the tail of the ground-state wavefunction. The presence of excited state decreases the breakup strength, and this flux is transferred to the inelastic-scattering channel. This indicates a conservation of the flux within each partial wave. We also show that the parallel-momentum distributions are insensitive to the existence of resonances within the continuum, they can thus be ignored in practice. This independence of the continuum argues that the parallel-momentum distributions are ideal observables to extract very precisely the ANCs of halo nuclei.</jats:p>
- Autoren
- Chloê Hebborn
- Pierre Capel
- DOI
- 10.1088/1742-6596/1643/1/012088
- eISSN
- 1742-6596
- ISSN
- 1742-6588
- Ausgabe der Veröffentlichung
- 1
- Zeitschrift
- Journal of Physics: Conference Series
- Paginierung
- 012088 - 012088
- Datum der Veröffentlichung
- 2020
- Status
- Published
- Herausgeber
- IOP Publishing
- Herausgeber URL
- http://dx.doi.org/10.1088/1742-6596/1643/1/012088
- Datum der Datenerfassung
- 2022
- Titel
- Sensitivity of one-neutron knockout of halo nuclei to their nuclear structure
- Ausgabe der Zeitschrift
- 1643
Data source: Crossref
- Other metadata sources:
-
- Abstract
- Halo nuclei are located far from stability and exhibit a very peculiar structure. Due to their very short lifetime, they are often studied through reactions. Breakup reactions are of particular interest since their cross sections are large for these loosely-bound nuclei. Inclusive measurements of breakup--also called knockout reactions--have even higher statistics. In this proceeding, we study which nuclear-structure information can be inferred from the parallel-momentum distribution of the core of one-neutron halo nuclei after the knockout of its halo neutron. In particular, we analyse the influence of the ground-state wavefunction, the presence of excited states within the halo-nucleus spectrum and resonances in the core-neutron continuum. Our analysis shows that such observables are sensitive to the tail of the ground-state wavefunction. The presence of excited state decreases the breakup strength, and this flux is transferred to the inelastic-scattering channel. This indicates a conservation of the flux within each partial wave. We also show that the parallel-momentum distributions are insensitive to the existence of resonances within the continuum, they can thus be ignored in practice. This independence on the continuum argues that the parallel-momentum distributions are ideal observables to extract very precisely the ANCs of halo nuclei.
- Autoren
- Chloë Hebborn
- Pierre Capel
- Autoren-URL
- http://arxiv.org/abs/1911.01489v1
- Schlüsselwörter
- nucl-th
- nucl-th
- nucl-ex
- Notes
- 6 pages, 3 figures, INPC 2019 proceedings
- Datum der Veröffentlichung
- 2019
- Herausgeber URL
- http://dx.doi.org/10.1088/1742-6596/1643/1/012088
- Datum der Datenerfassung
- 2019
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2019
- Titel
- Sensitivity of one-neutron knockout of halo nuclei to their nuclear structure
Files
1911.01489v1.pdf
Data source: arXiv
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