6533b86ffe1ef96bd12cd42f
RESEARCH PRODUCT
First Exploration of Neutron Shell Structure below Lead and beyond N=126
Joonas KonkiS. J. FreemanI.h. LazarusE T GregorE. F. BaaderD. K. SharpG. De AngelisW. N. CatfordM. LabicheMatthew MumpowerM D GottS.v. SzwecS.v. SzwecP. A. ButlerT. L. TangP. T. MacgregorF. FlavignyF. FlavignyF. RecchiaRiccardo RaabeRobert PageO. PoleshchukA. ArokiarajZs. PodolyákJ. F. SmithJiecheng YangB. P. KayCalem HoffmanLiam GaffneyIsmael MartelJ. P. Schiffersubject
PhysicsNuclear reactionSpectrometerSolenoidal vector fieldNuclear TheoryGeneral Physics and AstronomyCoulomb barrier01 natural sciencesNuclear physicsLead (geology)0103 physical sciencesr-processPhysics::Accelerator PhysicsNeutron010306 general physicsSpectroscopyNuclear Experimentydinfysiikkadescription
The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical r process in producing nuclei heavier than A∼190. Despite their importance, the structure and properties of these nuclei remain experimentally untested as they are difficult to produce in nuclear reactions with stable beams. In a first exploration of the shell structure of this region, neutron excitations in ^{207}Hg have been probed using the neutron-adding (d,p) reaction in inverse kinematics. The radioactive beam of ^{206}Hg was delivered to the new ISOLDE Solenoidal Spectrometer at an energy above the Coulomb barrier. The spectroscopy of ^{207}Hg marks a first step in improving our understanding of the relevant structural properties of nuclei involved in a key part of the path of the r process. ispartof: Physical Review Letters vol:124 issue:6 ispartof: location:United States status: published
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-02-13 |