Although the structure of large momentum transfer inclusive reactions is now well understood in perturbative quantum chromodynamics, exclusive processes involving large transfer of momentum have received relatively little attention since they involve detailed, explicit features of hadronic wavefunctions. On the other hand, the dimensional counting132 ansatz, which is based on the premise that t...

Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean-free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order...

A suggested model for quasi--periodic eruptions (QPEs) from galaxy nuclei invokes a white dwarf in an eccentric orbit about the central massive black hole. I point out that extreme mass ratio allows presence of strong Lindblad resonances accretion disc. These are important stability transfer, and may trigger themselves by rapidly transferring angular momentum disc (which is likely to be itself)...