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Study of the deformed halo nucleus^(31)Ne with Glauber model based on microscopic self-consistent structures

Science China(Physics,Mechanics & Astronomy) 2022年第6期65卷 67-75页

作者： Shi-Yi Zhong Shi-Sheng Zhang Xiang-Xiang Sun Michael S.Smith School of Physics Beihang UniversityBeijing 100191China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Physics Division Oak Ridge National LaboratoryOak Ridge 378^(31)-6354USA

The exotic deformed nucleus^(31)Ne is studied with an approach that combines self-consistent structure and reaction *** deformed relativistic Hartree-Bogoliubov theory in continuum(DRHBc)is utilized to demonstrate that deformation and pairing correlations give rise to a halo structure with a large-amplitude p-wave configuration in^(31)*** the valence nucleon wave functions and angle-averaged density distributions of ^(30)Ne from this theory are used as input for the Glauber reaction model to study the observables of neutron-rich neon isotopes to search halo *** NL1 effective interaction,our predictions of the reaction cross sections for these exotic neon isotopes on a carbon target can better reproduce the experimental data than those from the relativistic mean field model for a spherical shape with resonances and pairing correlation contributions,and are roughly 3.3%(∼50 mb)larger than those with Gaussian function-fitted densities of the core *** calculated one-neutron removal cross section at 240 MeV/nucleon,and the inclusive longitudinal momentum distribution of the 30Ne residues from the^(31)Ne breakup reaction are largely improved over previous theoretical predictions and agree well with *** reaction evalu-ations indicate a dilute density distribution in coordinate space and are a canonical signature of a halo ***,our predictions with the NL3 and PK1 effective interactions give slightly better descriptions of reaction observables for exotic neon isotopes.

关键词： halo relativistic model Glauber model reaction cross section momentum distribution

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