Hosted by: Artemis Tsantiri (University of Regina, Canada)

Hosted by: Aldana Grichener (University of Arizona and Observatory)

Abstract: The actinides, including thorium (Th), are the heaviest observable elements synthesized in the universe, holding clues to the extremes of the astrophysical and nuclear conditions of r-process sites. I present Th abundances based on high-resolution spectroscopy for 47 metal-poor stars, the largest homogeneously analyzed sample to date.

Hosted by: TBD

Abstract: TBD

Hosted by: TBD

Abstract: TBD

Hosted by: TBD

Abstract: TBD

Hosted by: TBD

Abstract: TBD

The meeting brings together researchers in astrophysics and nuclear physics to build collaborations, share ideas and report exciting new developments.

The 2026 meeting will be hosted May 18th-22nd on the campus of Texas A&M University - College Station in the Department of Physics & Astronomy.

The aim of the conference is to bring together researchers interested in the significant role radioactive nuclei play in the cosmos and particularly with respect to questions in astrophysics.  The scientific program will cover topics related to the role of radioactivity within galactic chemical evolution, cosmochemistry, the origin of elements, and multi-messenger astronomy.  

The 2026 R-matrix workshop—held at Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, USA on July 13–17, 2026—will focus on several topics specific to the  phenomenological R-matrix analysis of nuclear reactions with particular emphasis on  neutron induced reactions. Among these,
• theoretical advances such as breakup reaction models, fission channel in the R-matrix framework, secondary gamma reactions, relativistic R-matrix models, primary gammas, polarization observables,
• experimental techniques,