Session R04: From Quarks to the Cosmos

Live

There have been rapid developments in lattice-QCD hadron-structure calculations in recent years. Important progress has been made at physical pion mass, including new calculations of the spin decomposition of the nucleon and the Bjorken-$x$ dependence of hadron structure. In this talk, I review recent progress in lattice-QCD calculations of hadron structure with an emphasis on nucleon structure. Challenges and perspectives for future lattice hadron-structure calculations will be discussed.   

Live

Lattice QCD is being used to quantitatively understand how the strong nuclear force emerges from the underlying theory of QCD and make progress towards reliably predicting the properties of nuclei directly from the quark and gluon interactions of QCD. This talk will review recent lattice QCD studies of the quark and gluon structure of nuclei as well as nuclear matrix elements describing electroweak reactions. The outlook will be discussed for lattice QCD calculations of nuclei with nearly physical quark masses and applications to electron- and neutrino-nucleus scattering and new physics searches with nuclear targets.   

Not Participating

We explore 2+1 flavor QCD at non-zero temperature and density on the lattice. We find the phase boundary at chemical potential up to 300 MeV and explore how to probe the confinement transition using heavy quarkonium. We also show new results on the fluctuations of baryons at finite chemical potential.