223 citations · 1.2k across the 33 of their papers we have counts for
10 papers · 1 filter
TITAN mass measurements of neutron-rich Cs, Ba and r-process lanthanide abundances
T. -H. Yeh, J. D. Cardona, Y. Wang +26
We present measurements for the masses of five neutron-rich isotopes, Cs and Ba, probed for the first time by TITAN at TRIUMF with time-of-flight measureme…
Classifying metal-poor stars with machine learning using nucleosynthesis calculations
Nicole Vassh, Yilin Wang, Richard M. Woloshyn +4
We apply the capabilities of machine learning (ML) to discern patterns in order to classify metal-poor stars. To do so, we train an ML model on a bank of nucleosynthesis calculatio…
Motivations for Early High-Profile FRIB Experiments
B. Alex Brown, Alexandra Gade, S. Ragnar Stroberg +39
This white paper is the result of a collaboration by those that attended a workshop at the Facility for Rare Isotope Beams (FRIB), organized by the FRIB Theory Alliance (FRIB-TA),…
Thallium-208: a beacon of in situ neutron capture nucleosynthesis
Nicole Vassh, Xilu Wang, Maude Lariviere +7
We demonstrate that the well-known 2.6 MeV gamma-ray emission line from thallium-208 could serve as a real-time indicator of astrophysical heavy element production, with both rapid…
The need for a local nuclear physics feature in the neutron-rich rare-earths to explain solar -process abundances
Nicole Vassh, Gail C. McLaughlin, Matthew R. Mumpower +1
We apply Markov Chain Monte Carlo to predict the masses required to form the observed solar -process rare-earth abundance peak. Given highly distinct astrophysical outflows and…
Probing the fission properties of neutron-rich actinides with the astrophysical process
Nicole Vassh, Matthew R. Mumpower, Trevor M. Sprouse +2
We review recent work examining the influence of fission in rapid neutron capture (-process) nucleosynthesis which can take place in astrophysical environments. We briefly discu…
Markov Chain Monte Carlo Predictions of Neutron-rich Lanthanide Properties as a Probe of -process Dynamics
Nicole Vassh, Gail C. McLaughlin, Matthew R. Mumpower +1
Lanthanide element signatures are key to understanding many astrophysical observables, from merger kilonova light curves to stellar and solar abundances. To learn about the lanthan…
Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis
Nicole Vassh, Ramona Vogt, Rebecca Surman +8
We evaluate the impact of using sets of fission yields given by the GEF code for spontaneous (sf), neutron-induced ((n,f)), and beta-delayed (betadf) fission processes which take i…
-delayed fission in -process nucleosynthesis
M. R. Mumpower, T. Kawano, T. M. Sprouse +4
We present -delayed neutron emission and -delayed fission calculations for heavy, neutron-rich nuclei using the coupled Quasi-Particle Random Phase Approximation plus Hauser-…
The Effect of Sterile States on the Magnetic Moments of Neutrinos
A. B. Balantekin, N. Vassh
We briefly review recent work exploring the effect of light sterile neutrino states on the neutrino magnetic moment as explored by the reactor and solar neutrino experiments.