JENAS 2022: European Astroparticle, Nuclear, and Particle Physicists Join Forces

The second Joint European Committee for Future Accelerators (ECFA)–Nuclear Physics European Collaboration Committee (NuPECC)– AstroParticle Physics European Consortium (APPEC) (JENAS) seminar was held in May 2022 in the main auditorium of Consejo Superior de Investigaciones Científicas (CSIC) in Madrid (Figure 1). For three days, senior and junior members of the astroparticle, nuclear, and particle physics communities presented their overlapping challenges and strategies. For many of the more than 160 participants, it was their first on-site attendance at a conference after more than two years of the COVID-19 pandemic. The JENAS2022 event in Madrid allowed astroparticle, nuclear, and particle physics researchers to sniffle into each other’s activities. Identified overlapping challenges are transformed via joint programs or dedicated working groups into stronger opportunities to deepen our understanding of both the smallest and the largest structures in nature. The seminar started with overview talks on research highlights and strategies of the three individual research fields. Detector research and development, big data computing, and applications of artificial intelligence in analysis and detector design are only some examples of developments essential for our research. Related to the quest of unraveling new insights in fundamental physics, coverage is required from all three fields in order to address the dark matter problem, the search for physics beyond the Standard Model, and the interdisciplinary research with gravitational waves. These and other topics were tackled in overview talks and in the presentations of the JENA Expressions of Interest (EoI). The six EoI, namely: Dark Matter, Gravitational Waves for fundamental physics, Machine-Learning Optimized Design of Experiments, Nuclear Physics at the Large Hadron Collider (LHC), Storage Rings for the Search of ChargedParticle Electric Dipole Moments, and Synergies between the Electron-Ion Collider and the LHC experiments, proposed and endorsed after the first JENAS 2019 in Orsay, presented progress reports (see also http://nupecc.org/jenaa/?display=eois). The session on EoI was complemented by a dedicated poster session where the young scientists developed many aspects of the aforementioned exciting physics topics. In presentations on organizational matters related to education, outreach, open science, and transfer of knowledge, synergies are also clearly identi-