Speaker
Dr
Jennifer Fallis
(TRIUMF)
Description
The photo-disintegration process (*p*-process) is thought to be the primary method by which the rare *p*-nuclides (stable isotopes that cannot be produced by either the slow (*s*) or rapid (*r*) neutron capture processes) are produced. This process occurs in the high temperature environments in the late stages of massive stars and in their subsequent explosion as core collapse supernovae. Recent work to explore and expand the capabilities of the DRAGON recoil separator to beams of mass A > 40 has enabled us to make our first measurement of an important *p*-process reaction: 76Se(α,γ)80Kr. This reaction is of particular interest as 80Kr is a possible branching point of the *p*-process. The relative reaction rates of the 80Kr(γ,α)76Se, 80Kr(γ,n)79Kr, and 80Kr(γ,p)79Br will determine the reaction flow from this point, which in turn affects the resulting abundance of p-nuclide 78Kr. This measurement and its implications, as well as the preliminary high mass tests. will be discussed.
Primary author
Dr
Jennifer Fallis
(TRIUMF)
Co-authors
Dr
Alex Rojas
(TRIUMF)
Dr
Alison Laird
(University of York)
Dr
Artemis Spyrou
(Michigan State University / NSCL)
Barry Davids
(TRIUMF)
Charlie Akers
(TRIUMF / U. York)
Dr
Chris Ruiz
(TRIUMF)
Dr
Devin Connolly
(Colorado School of Mines)
Dr
Gregory Christian
(TRIUMF)
Dr
Iris Dillmann
(TRIUMF)
Dr
Patrick O'Malley
(Colorado School of Mines)
Stephen Quinn
(Michigan State University / NSCL)
Dr
Ulrike Hager
(Colorado School of Mines)
