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Influence of pairing correlations on the radius of neutron-rich nuclei

dc.contributor.authorZhang, Yingen_ZA
dc.contributor.authorChen, Yingen_ZA
dc.contributor.authorMeng, Jieen_ZA
dc.contributor.authorRing, Peteren_ZA
dc.date.accessioned2018-11-07T07:24:27Z
dc.date.available2018-11-07T07:24:27Z
dc.date.issued2017
dc.identifier.citationZhang, Y., et al. 2017. Influence of pairing correlations on the radius of neutron-rich nuclei. Physical Review C, 95(1):1-7, doi:10.1103/PhysRevC.95.014316
dc.identifier.issn2469-9993 (online)
dc.identifier.issn2469-9985 (print)
dc.identifier.otherdoi:10.1103/PhysRevC.95.014316
dc.identifier.urihttp://hdl.handle.net/10019.1/104652
dc.descriptionCITATION: Zhang, Y., et al. 2017. Influence of pairing correlations on the radius of neutron-rich nuclei. Physical Review C, 95(1):1-7, doi:10.1103/PhysRevC.95.014316.
dc.descriptionThe original publication is available at https://journals.aps.org/prc
dc.description.abstractThe influence of pairing correlations on the neutron root mean square (rms) radius of nuclei is investigated in the framework of self-consistent Skyrme Hartree-Fock-Bogoliubov calculations. The continuum is treated appropriately by the Green's function techniques. As an example the nucleus ¹²⁴Zr is treated for a varying strength of pairing correlations. We find that, as the pairing strength increases, the neutron rms radius first shrinks, reaches a minimum, and beyond this point it expands again. The shrinkage is due to the the so-called pairing antihalo effect, i.e., due to the decrease of the asymptotic density distribution with increasing pairing. However, in some cases, increasing pairing correlations can also lead to an expansion of the nucleus due to a growing occupation of so-called halo orbits, i.e., weakly bound states and resonances in the continuum with low-ℓ values. In this case, the neutron radii are extended just by the influence of pairing correlations, since these halo orbits cannot be occupied without pairing. The term “antihalo effect” is not justified in such cases. For a full understanding of this complicated interplay, self-consistent calculations are necessary.en_ZA
dc.description.urihttps://journals.aps.org/prc/abstract/10.1103/PhysRevC.95.014316
dc.format.extent7 pages
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Physical Society
dc.subjectNeutron-rich nucleien_ZA
dc.titleInfluence of pairing correlations on the radius of neutron-rich nucleien_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's version
dc.rights.holderAmerican Physical Society


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