0000000000512102

AUTHOR

Jimmy Rotureau

showing 2 related works from this author

Charge radii and neutron correlations in helium halo Nuclei

2011

Within the complex-energy configuration interaction framework, we study correlations of valence neutrons to explain the behavior of charge radii in the neutron halo nuclei $^{6,8}$He. We find that the experimentally observed decrease of the charge radius between $^6$He and $^8$He is caused by a subtle interplay between three effects: dineutron correlations, a spin-orbit contribution to the charge radius, and a core swelling effect. We demonstrate that two-neutron angular correlations in the $2^+_1$ resonance of $^6$He differ markedly from the ground-state correlations in $^{6,8}$He.

Nuclear and High Energy PhysicsNuclear Theory[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]Nuclear TheoryFOS: Physical scienceschemistry.chemical_element01 natural sciencesNuclear Theory (nucl-th)Charge radius0103 physical sciencesNeutronNuclear Experiment (nucl-ex)Nuclear Experiment010306 general physicsNuclear ExperimentHeliumPhysicsValence (chemistry)ta114010308 nuclear & particles physicsCharge densityRadiusConfiguration interactionchemistryHaloAtomic physicsPhysical Review C
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White paper: from bound states to the continuum

2020

This white paper reports on the discussions of the 2018 Facility for Rare Isotope Beams Theory Alliance (FRIB-TA) topical program ‘From bound states to the continuum: Connecting bound state calculations with scattering and reaction theory’. One of the biggest and most important frontiers in nuclear theory today is to construct better and stronger bridges between bound state calculations and calculations in the continuum, especially scattering and reaction theory, as well as teasing out the influence of the continuum on states near threshold. This is particularly challenging as many-body structure calculations typically use a bound state basis, while reaction calculations more commonly utili…

Nuclear and High Energy Physics[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]Structure (category theory)nucleus: structure functionFew-body systems[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesMany-body problemTheoretical physicsFew-body systems0103 physical sciencesBound stateReactionsNuclear structure010306 general physicsPhysicsBasis (linear algebra)010308 nuclear & particles physicsContinuum (topology)ScatteringscatteringNuclear structurePhysique atomique et nucléairebound statefew-body problemmany-body problem
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