Good progress has been achieved towards the planned objectives. The network has produced a relevant number of scientific publications that are being published in high impact journals in the field. The balance between EU vs non-EU based secondments was crucial.
In Neutrino Physcs, the expertise provided by the participants covers all aspects of the field (neutrino oscillations, neutrinoless double beta decay, non-standard neutrino interactions, models of neutrino masses and mixing, neutrino astrophysics and cosmology, CP violation). Important progress has been achieved by the experimental teams in the commissioning of the NEXT neutrinoless double beta decay experiment and the preparation for the next generation LEGEND experiment. A highly influential result is the update of the global analysis of neutrino data NuFit-6.0 which includes the latest results published by the leading neutrino oscillation collaborations T2K and NoVA, with important implications for the determination of the neutrino mass ordering and the violation of CP in neutrino oscillations.
In Dark Matter searches, participants bring complementary knowledge on the different DM candidates from the theoretical point of view (the standard WIMPs or feebly/very weakly interacting like sterile neutrinos, or axions) as well as regarding the means to detect them exploiting existing and future experiments. Major results have been achieved regarding direct dark matter searches by the XENON experiment and the design of the next generation detector DARWIN/LXZD. Interesting results have also been presented by the team regarding the phenomenology of feably interacting dark matter models.
Beyond the Standard Model scenarios are explored from the perspective of revealing new (a)symmetries to understand neutrino masses and DM. Participants include experts on collider searches, effective field theory and model building. Several important results have been obtained by members of the network on colliders signatures of neutrino mass models, as well as axion-like particles.
The activities on Interfaces and Symmetries aim at arriving at a New Standard Model by exploring the interplay of sectors traditionally studied separately, e.g. neutrinos, dark matter. Various results have been obtained regarding the interplay of neutrino masses, dark matter and the baryon asymmetry, and the connection between axion-like particles and the strong CP problem.
The Managerial objectives of the network have also progressed as planned.
Finally the Dissemination, Communication and Outreach activities have included two major international events: the Invisibles23 Workshop organized by DESY in Göttingen from August 28th to September 1st, 2023, and the Invisibles 24 Workshop organized by UNIBO in Bologna, Italy from July 1st to July 5th, 2024. Both events were a great success.
