6 papers
Detailed Study of the Cu(p,Ni Reaction and Constraints on Its Astrophysical Reaction Rate
E. Lopez-Saavedra, M. L. Avila, W. -J. Ong +20
The CuNi reaction plays an important role in explosive astrophysical scenarios such as Type I X-ray bursts and the -process in neutrino-driven winds follow…
Direct Measurement of the CuNi Excitation Function to Constrain the Ni--Cu Cycle Strength and Its Impact on Explosive Nucleosynthesis
E. Lopez-Saavedra, M. L. Avila, W. -J. Ong +21
A new direct measurement of the 59Cu(p,a)56Ni excitation function from 2.43-5.88 MeV in the center-of-mass was performed in inverse kinematics using the high-efficiency MUSIC activ…
Constraining the Synthesis of the Lightest p Nucleus 74Se
A. Tsantiri, A. Spyrou, E. C. Good +42
We provide the first experimental cross section of the reaction to constrain one of the main destruction mechanisms of the p nucleus $^{74}\tex…
Beta-decay Half Lives beyond Ca: A Systematic Survey of Decay Properties approaching the Neutron Dripline
W. -J. Ong, Z. Y. Xu, R. Grzywacz +83
In an experiment performed at the Facility for Rare Isotope Beams (FRIB) using the FRIB Decay Station initiator (FDSi), 15 new half lives of isotopes near Ca were measured.…
Universal Effective Charges in the and Shells
T. H. Ogunbeku, J. M. Allmond, T. J. Gray +79
The 247-keV state in Sc, populated in the decay of Ca, is reported here as a nanosecond isomer with a half-life of 26.0(22) ns. The state is interpreted as the $…
Machine-Learning-Enabled Measurements of Astrophysical (p,n) Reactions with the SECAR Recoil Separator
P. Tsintari, N. Dimitrakopoulos, R. Garg +29
The synthesis of heavy elements in supernovae is affected by low-energy (n,p) and (p,n) reactions on unstable nuclei, yet experimental data on such reaction rates are scarce. The S…