Using GODDESS to Constrain r-Process Neutron Capture Rates with (d,pγ) Reactions

Measurements of neutron-capture reactions on exotic nuclei are a sensitive input needed to understand r-process abundance patterns. Due to the short half-lives of many of the isotopes involved, direct measurements of these cross sections are often not possible. FRIB will make possible the study of many nuclei near the r-process path via indirect methods. Measurements of (d,p) reactions with the Oak Ridge-Rutgers University Barrel Array (ORRUBA) silicon detector have successfully constrained spectroscopic factors necessary for inferring direct neutron capture cross sections. Additionally, a "surrogate reaction method" has been validated to extract compound (n,γ) reaction cross sections from (d,pγ) reaction measurements. The coupled GODDESS (Gammasphere-ORRUBA: Dual Detectors for Experimental Structure Studies) detectors enable such studies. In early 2019, ORRUBA was coupled to GRETINA. The outcome of this campaign, as well as plans for G(RETINA)ODDESS campaigns at NSCL and FRIB will be discussed.