Experimental Investigation of (p,n) reactions relevant to the astrophysical $\nu p$~process
ORAL
Abstract
A recently discovered nucleosynthesis process, the $\nu$p process is thought to take place in core-collapse supernovae and could explain some of the observed abundance trends. The underlying nuclear physics and its role is not yet known due to a lack of experimental information. Aiming to study relevant reaction rates, the (n,p) reactions on $^{61}$Cu and $^{59}$Ni have been studied through their time-inverse reactions $^{61}$Ni(p,n) and $^{59}$Co(p,n). Protons with energies between 2.2 and 4~MeV from the FN Tandem of the University of Notre Dame were used to extract excitation functions in 100~keV steps covering the energy range of relevance. Neutrons from the (p,n) reactions with energies between 130~keV and 1~MeV where detected using a subset of the LENDA neutron array. Preliminary results from this investigation will be presented and the impact to nucleosynthesis will be discussed.
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Authors
G. Perdikakis
Department of Physics, Central Michigan University
R.M. Almus
Department of Physics, Central Michigan University
R. Avetisyan
Department of Physics, University of Notre Dame
A.A. Bataglia
Department of Physics, University of Notre Dame
B.M. Bucher
Department of Physics, University of Notre Dame
C.R. Casarella
Department of Physics, University of Notre Dame
C. Fr\"{o}hlich
Department of Physics, North Carolina State University
S. Lipschutz
NSCL, Michigan State University
A.M. Long
Department of Physics, University of Notre Dame
S. Lyons
Department of Physics, University of Notre Dame
S.T. Marley
Department of Physics, University of Notre Dame
K.M. Ostdiek
Department of Physics, University of Notre Dame
T.H. Redpath
Department of Physics, Central Michigan University
