The IReNA focus area on nuclear reaction rates (FA1) is hosting an online workshop on direct measurements for stellar burning, which will be spread over the month of June to leverage one advantage of the online format. The purpose of the workshop is to build and strengthen international connections in nuclear astrophysics experiments involving measurements of nuclear reaction rates. There will be 5 workshop sessions, starting on Wednesday June 10th from 9-11am EDT (15-17 CEST, 13-15 UTC), which will consist of three 20min lectures, followed by an ~hour of open discussion.

Each session will consist of three 20min talks followed by an hour of discussion. The first session will provide an overview of the theory related questions of the field. This will be followed by three sessions summarizing a number of different direct measurement methods and the corresponding facilities that the community has developed in recent years. A fifth session, which will cap the series, will be dedicated to exchanging ideas and discussing the experimental needs and complementarity of the various approaches. 

Statistical estimates of nuclear reaction rates are essential ingredients for astrophysical model calculations, e.g. r-process nucleosynthesis in neutron star mergers, and nuclear applications, e.g. next generation nuclear reactor performance. Rate calculations require experimental or theoretical constraints for nuclear properties such as level densities (temperature), gamma-strength functions, particle optical potentials, and level spin distributions.

Nuclei in the Cosmos is the most important international meeting in the field of nuclear astrophysics. It brings together nuclear experimentalists, nuclear theorists, astronomers, theoretical astrophysicists, cosmo-chemists, and others interested in the scientific questions at the interface of nuclear physics and astrophysics. These questions concern, for example, the origin of the elements in the cosmos and the nuclear reactions that occur in the big bang, in stars, and in stellar explosions.

Radioactive nuclei play a significant role in many current astrophysical quests. From the origin of the elements through the driving of the emissions from supernovae (56Ni) and kilonovae (r-process radioactivity), they are crucial for direct studies of galactic enrichment (7Be, 26Al, 44Ti, 60Fe, 99Tc, 244Pu, ...) and for new insights on stellar explosions (56/57Ni, 44Ti).

We would like to invite you to participate in a JINA-CEE sponsored workshop on all things R-matrix that will be held from June 21 - 25, 2021 at Ohio University in Athens, OH, USA.