6533b7ddfe1ef96bd12752f8
RESEARCH PRODUCT
Detailed study of the eikonal reaction theory for the breakup of one-neutron halo nuclei
Chloë HebbornChloë HebbornChloë HebbornPierre CapelPierre Capelsubject
PhysicsNuclear Theory010308 nuclear & particles physicsEikonal equationNuclear TheoryFOS: Physical sciencesGénéralitésBreakup01 natural sciencesPhysique atomique et nucléaire3. Good healthMomentumNuclear physicsNuclear Theory (nucl-th)0103 physical sciencesNeutronHalo010306 general physicsNuclear ExperimentNuclear theoryDifferential (mathematics)Relative energydescription
Background: One-neutron removal reactions are used to study the single-particle structure of unstable nuclei, and in particular the exotic halo nuclei. The eikonal reaction theory (ERT) has been developed by Yahiro, Ogata, and Minomo [Prog. Theor. Phys. 126, 167 (2011)10.1143/PTP.126.167] to include dynamical effects, which are missing in the usual eikonal description of these reactions. Encouraging results have been obtained for total breakup cross sections in comparison to more elaborate reaction models. Purpose: We extend these comparisons to more differential breakup cross sections expressed as functions of the relative energy or parallel momentum between the core and halo neutron. Method: ERT predictions of these cross sections are compared to state-of-the-art calculations. Results: The hypotheses upon which the ERT is based are confirmed and their range of validity is made clearer. The actual ordering of the evolution operators affects ERT differential cross sections and a specific choice leads to excellent agreement with the reference calculation. Dynamical effects in the treatment of the neutron-target interaction can be significant in the parallel-momentum observable. Conclusions: The role of the different interactions in the dynamics of breakup reactions of one-neutron halo nuclei are better understood and improvements to the ERT are suggested.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-01-01 |