In a recent experiment at FRIB conducted from January 30 to February 2, 2026, the MoNA Collaboration created excited neutron-unbound states of 53 Ca and detected their decay products, 52 Ca and a neutron, in coincidence. The experiment e21066 “Neutron-Unbound Excited States in 53 Ca” (Spokesperson: Thomas Baumann) utilized the Sweeper-MoNA setup together with the CAESAR gamma detector array with the goal to measure the decay energy of these unbound excited states. Drawing of the experimental...

The MoNA Collaboration had a strong presence at the 2025 American Physical Society Division of Nuclear Physics (APS/DNP) which was held on October 17-20, 2025 at the Hilton Chicago hotel in Chicago, Illinois. A total of 23 combined oral and poster presentations on MoNA-related science or by a member of the MoNA Collaboration were delivered throughout the meeting, covering a wide range of topics that included new detector technologies, multi-neutron systems, novel materials and manufacturing...

Between June 19-July 1, 2025, the MoNA Collaboration conducted its first experiments at the Facility for Rare Isotope Beams (FRIB) using...