  Energy-momentum (and angular momentum) for the Metric-Affine Gravity theory
is considered from a Hamiltonian perspective (linked with the Noether
approach). The important roles of the Hamiltonian boundary term and the many
choices involved in its selection-which give rise to many different
definitions-are emphasized. For each choice one obtains specific boundary
conditions along with a value for the quasilocal, and (with suitable asymptotic
behavior) total (Bondi and ADM) energy-momentum and angular momentum.
Applications include the first law of black hole thermodynamics-which
identifies a general expression for the entropy. Prospects for a positive
energy proof are considered and quasilocal values for some solutions are
presented.
