Conveners
W2-8 Nuclear Astrophysics II (DNP) | Astrophysique nucléaire II (DPN)
- Chris Ruiz (TRIUMF)
The Electromagnetic Mass Analyser (EMMA) is a newly commissioned recoil mass spectrometer located at the ISAC-II facility of TRIUMF. EMMA is designed to separate the products of nuclear reactions from the unreacted beam, and disperse them according to their mass/charge (A/q) ratio onto detectors located at the focal plane. Utilizing EMMA thus allows for drastically increased sensitivity to...
The astrophysical r-process is responsible for the production of approximately half of the observed abundance of atomic nuclei heavier than iron. A complete understanding of the r-process requires reliable atomic mass data for neutron-rich isotopes far from stability, where experimental access is often limited by low production rates, high rates of contamination, and short half-lives. As...
High-precision mass spectroscopy plays a decisive role in addressing several open questions in contemporary nuclear physics, for example, to explain the observed abundances of atoms heavier than iron. About half of the neutron-rich isotopes up to uranium are synthesized via the rapid-neutron capture process (r-process) where the final nuclear abundance depends sensitively on the nuclear mass....
Since the discovery of the GW170817 binary neutron star merger and the associated kilonova, it became clear that such an event can indeed produce heavy elements up to the lanthanide region and recent work has been focussed on understanding the formation of the 2nd and 3rd r-process abundance peaks as well as the lanthanide region. However nuclear data in these regions is scares. The situation...
In the past decade, many efforts have been made in the ab initio nuclear calculations. Nowadays, the capability of ab initio many-body calculations has reached to the mass number 100 region. The calculation methods which are available for the medium-mass region such as coupled-cluster method, self-consistent Green's function method, and in-medium similarity renormalization (IM-SRG) are usually...