Speaker
Mr
Adrian Valverde
(University of Notre Dame)
Description
The doubly-magic nucleus $^{56}$Ni is one of the most important rp-process waiting points. While we now know that it is not the endpoint of the rp-process, the flow around this nucleus is not well understood. The mass of $^{56}$Cu is critical for constraining the reaction rates of the $^{55}$Ni(p,$\gamma$)$^{56}$Cu(p,$\gamma$)$^{57}$Zn($\beta^+$)$^{57}$Cu bypass around the $^{56}$Ni waiting point, but has not been experimentally determined; calculated mass excess values have disagreed by several hundred keV. A mass measurement was undertaken using the LEBIT 9.4T Penning trap mass spectrometer at the National Superconducting Cyclotron Laboratory to rectify this situation.
Primary author
Mr
Adrian Valverde
(University of Notre Dame)
Co-authors
Mr
Alec Hamaker
(Michigan State University/NSCL)
Dr
Antonio C.C. Villari
(Facility for Rare Isotope Beams - MSU)
Dr
Chandana Sumithrarachchi
(National Superconducting Cyclotron Laboratory)
Mr
Christopher Izzo
(National Superconducting Cyclotron Laboratory/ Michigan State University)
Mr
Daniel Puentes
(Michigan State University/NSCL)
Georg Bollen
(Michigan State University)
Mr
Isaac Yandow
(Michigan State University/NSCL)
Mr
Jason Surbrook
(Michigan State University/NSCL)
Dr
Kerim Gulyuz
(NSCL)
Dr
Martin Eibach
(National Superconducting Cyclotron Laboratory)
Dr
Matthew Redshaw
(Central Michigan University)
Prof.
Maxime Brodeur
(University of Notre Dame)
Ms
Rachel Sandler
(National Superconducting Cyclotron Laboratory/ Michigan State University)
Dr
Ryan Ringle
(NSCL)
Dr
Stefan Schwarz
(NSCL)
Wei Jia Ong
(Michigan State University/NSCL)