Speaker
Description
For the increased interest on the impact of nu-p process in the search of an answer to the heavy element production puzzle in core-collapse supernovae, a direct (n,p) reaction measurement with the radioactive $^{56}$Ni (a half-life of 6 days) was performed at Los Alamos Neutron Science Center (LANSCE). The radioactive 56Ni was produced by irradiating protons on a $^{59}$Co foil through the (p,4n) reaction at the Isotope Production Facility and the thin-deposited 56Ni target was chemically separated, fabricated and characterized at the Hot Cell facility. Using the LENZ (Low Energy NZ) instrument, the first directly measured cross sections of $^{56,59}$Ni(n,p), $^{56}$Co(n,p), and $^{59}$Ni(n,$\alpha$) will be reported. With the currently obtained experimental information, the reaction rate of 56Ni(n,p) was updated and compared with other theoretical predictions. The final impact on the nu-p process will be discussed along with a plan of improving experimental uncertainty through optimized solenoidal spectrometer development at LANSCE.
| Length of presentation requested | Oral presentation: 17 min + 3 min questions |
|---|---|
| Please select between one and three keywords related to your abstract | Nuclear physics - experimental |
| 2nd keyword (optional) | Nuclear physics - theory |
| 3rd keyword (optional) | Nucleosynthesis |
