Scott Carmichael
(Argonne National Laboratory)
The $^{57}$Ni(p,$\gamma$)$^{58}$Cu reaction rate significantly impacts nucleosynthesis in various astrophysical sites. Perhaps most importantly, it impacts the production of the observable isotope $^{44}$Ti in core-collapse supernovae (CCSNe). Despite the importance of this reaction, no experimental rate previously existed for $^{57}$Ni(p,$\gamma$)$^{58}$Cu. To experimentally constrain this rate, the structure of $^{58}$Cu was probed via the $^{58}$Ni($^3$He,t)$^{58}$Cu reaction using two complementary measurements. The first measurement utilized GODDESS (GRETINA ORRUBA Dual Detectors for Experimental Structure Studies) at Argonne National Laboratory’s ATLAS facility, and the second measurement utilized the Enge split-pole spectrograph at the University of Notre Dame’s Nuclear Science Laboratory. These measurements precisely determined level energies of $^{58}$Cu and constrained the level spins. The structure information provided by these measurements was used to arrive at the first experimentally constrained rate for $^{57}$Ni(p,$\gamma$)$^{58}$Cu, and the impact of this newly-constrained rate on the production of $^{44}$Ti in CCSNe was investigated via nuclear network calculations. Experimental procedures, analysis, and results will be presented.
This work is supported by the University of Notre Dame, U.S. Department of Energy (DOE), National Science Foundation, National Nuclear Security Administration, and DOE Office of Science Graduate Student Research program. This work used the resources of Argonne National Laboratory's ATLAS facility.
Scott Carmichael
(Argonne National Laboratory)
Mr
Adam Sanchez
(University of Notre Dame)
Andrew Ratkiewicz
(Lawrence Livermore National Laboratory)
C. M. Campbell
(Lawrence Berkeley National Laboratory)
Mr
Cade Dembski
(University of Notre Dame)
Dr
Chad Ummel
(Lawrence Livermore National Laboratory)
Dr
Chevelle Boomershine
(University of Notre Dame)
Ms
Chloe Jones
(University of Notre Dame)
Claus Mueller-Gatermann
(ANL)
D. Seweryniak
(Argonne National Laboratory, Argonne, Illinois 60439, USA)
Dr
Dan Robertson
(University of Notre Dame)
Prof.
Daniel Bardayan
(University of Notre Dame)
Dr
Ed Stech
(University of Notre Dame)
Mr
Fabio Rivero
(University of Notre Dame)
Dr
Gemma Wilson
Griffin Mulcahy
Dr
Harrison Sims
Dr
Heather Garland
(Pacific Northwest National Laboratory)
Mr
Jacob Allen
Jason Forson
(University of Tennessee)
Javier Rufino
(University of Notre Dame)
Dr
Jerome Kovoor
Jes Koros
(University of Notre Dame)
John McDonaugh
(University of Notre Dame)
Jolie Cizewski
(Rutgers University)
Kate Jones
Kelly Chipps
(ORNL)
Kevin Lee
M.P. Carpenter
(Argonne National Laboratory, Argonne, Illinois 60439, USA)
Marco Siciliano
(Argonne National Laboratory)
Max Brodeur
(University of Notre Dame)
Dr
Patrick Copp
(Los Alamos National Laboratory)
Dr
Patrick O'Malley
(University of Notre Dame)
Pedro Domingues Magro
(Universidade de Sao Paulo)
Rajesh Ghimire
Rebecca Surman
(U)
Regan Zite
(University of Notre Dame)
Sam Porter
(University of Notre Dame)
Dr
Shaofei Zhu
Steven Pain
(ORNL)
Sydney Coil
(Michigan State University)
Dr
Thomas Bailey
(University of Notre Dame)
Mr
Tom Gore
(University of Notre Dame)
Mr
William von Seeger
(University of Notre Dame)
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