The workshop aims to examine current state and recent advances in nuclear astrophysics and identify crucial reactions that require assessment of information relevant to the field using stable and Radioactive Ion Beam (RIB) facilities. The workshop will bring together experimentalists and theoreticians studying nuclear reactions, along with physicists engaged in stellar and stellar-explosion modeling as well as in astronomical observations and cosmochemistry. The primary objective is to identify stellar scenarios that necessitate accurate nuclear reaction data, which significantly impact stellar evolution, and determine the most effective methods to obtain such data. The workshop will establish a collaborative framework and encourage joint activities among the participating scientists to facilitate the comparison of reaction studies using different and complementary techniques.

Lattice QCD calculations have reached per-mille-level precision for certain experimentally measurable quantities. Often, the limiting systematic uncertainty of such computations comes from determination of the lattice scale, converting the lattice results to physical units. A number of lattice collaborations carried out determinations of theoretical scales (e.g., a popular choice is the gradient flow scale) that are in slight tension. Lattice scale determination with fully accounted systematic uncertainties is not a purely theoretical question as it influences, for instance, the computation of the hadronic contribution to the anomalous magnetic moment of the muon and the determination of the CKM matrix elements. Thus, the precision of the lattice scale plays a direct role in confirming the Standard Model or differentiating new physics beyond the Standard Model

Chiral anomalies lead to new transport phenomena such as the chiral magnetic and the chiral vortical effects. Due to the universality of anomalies these effects play an important role in many different areas ranging from the physics of heavy ion collisions to condensed matter systems such as Weyl- and Dirac metals. From the very beginning the theory of anomaly induced transport has received important inputs from holography (the “gauge/gravity” duality). In particular in view of the ongoing search for anomaly induced effects in heavy ion collisions it is necessary to deepen our theoretical understanding, develop new models and arrive at quantitative predictions. In addition, transport phenomena associated with spin and rotation are being investigated in heavy ion collisions. Holography is a very powerful tool that holds the promise to be able to successfully address all these issues. The workshop shall gather leading experts to discuss the status quo and foster new ideas and collaborations.

The "mechanical properties" of hadrons have emerged as a new field of study in strong interaction physics. They refer to the hadronic matrix elements of the QCD energy-momentum tensor and related operators, which measure physical quantities carried by the quark and gluon fields inside hadrons, such as the momentum, angular momentum, and forces. These structures are studied theoretically using lattice QCD and effective theories, and measured experimentally through the connection with the partonic structure measured in high-energy scattering processes (generalized parton distributions). They can be interpreted in terms of classical concepts like a spatial distribution of matter, motion or forces, and open new possibilities for visualization and communication with other fields of science. The workshop will review the status of the field and assess the prospects for further developments in theory and experiment (JLab 12 GeV, EIC, hadron beam facilities).

Lepton flavour change is observed in neutrino oscillations, but not yet in contact interactions among charged leptons – despite decades of active searching and a plethora of models. However, this could change soon, as a huge leap in experimental reach is promised by upcoming searches for μ → e conversion in nuclei. The workshop aims to bring together lepton, χPT/nucleon and nuclear theorists, in order to improve the multi-scale theoretical rate calculations, using state of the art mean-field or shell-model approaches, to the accuracy required by upcoming experiments. Also, in collaboration with experimentalists, we aim to explore feasible and complementary nuclear targets that could best identify the lepton flavour changing interactions.