The doubly-magic nucleus $^{56}$Ni is one of the most important waiting point nuclei in the rp-process. While we now know that it is not the endpoint of the rp-process, which continues to the Sn-Sb-Te cycle, the flow around this nucleus is still not well understood. A pathway bypassing $^{56}$Ni through the $^{55}$Ni(p,$\gamma$)$^{56}$Cu reaction exists, but the rate depends on the $Q$ value of this reaction, which has not been experimentally determined. Mass measurements were undertaken using the LEBIT 9.4T Penning trap mass spectrometer at the National Superconducting Cyclotron Laboratory to rectify this situation.
*This work was supported in part by the National Science Foundation
–
Authors
A.A. Valverde
University of Notre Dame
M. Brodeur
University of Notre Dame
G. Bollen
Michigan State University, Facility for Rare Isotope Beams
M. Eibach
Ernst-Moritz-Arndt-Universität
K. Gulyuz
National Superconducting Cyclotron Laboratory
A. Hamacker
National Superconducting Cyclotron Laboratory, Michigan State University
C. Izzo
National Superconducting Cyclotron Laboratory, Michigan State University
W.-J. Ong
National Superconducting Cyclotron Laboratory, Michigan State University
D. Puentes
National Superconducting Cyclotron Laboratory, Michigan State University
M. Redshaw
National Superconducting Cyclotron Laboratory, Central Michigan University
R. Ringle
National Superconducting Cyclotron Laboratory
R. Sandler
National Superconducting Cyclotron Laboratory, Central Michigan University
S. Schwarz
National Superconducting Cyclotron Laboratory
C.S. Sumithrarachchi
National Superconducting Cyclotron Laboratory
J. Surbrook
National Superconducting Cyclotron Laboratory, Michigan State University
A.C.C. Villari
Facility for Rare Isotope Beams
I.T. Yandow
National Superconducting Cyclotron Laboratory, Michigan State University
