Distillation at high momentum

Triaxial nuclear shapes at high angular momentum

Shape is a fundamental property of atomic nuclei. The spherical ground-state equilibrium shapes of closed-shell ‘‘magic’’ nuclei give way to deformed, usually prolate shapes in the midshell regions. Although a variety of shapes may be found for excited nuclear states, the propensity for axial symmetry appears to be pervasive. Yet, there is a lack of suitable observables that are able to indicat...

Light-particle Emission at High Angular Momentum

Dynamics of quantum liquids at high momentum.

The dynamic form factor S(Q, co) in liquid He and He is evaluated in the wave-vector transfer o ] range 3&Q &15 A . The input is the pair interatomic potential, developed by Aziz et al. The S(Q, to) is calculated within the random-phase approximation (RPA) which becomes valid when RQ is much larger than the average momentum in the liquid. A T-matrix approximation represents the interaction appe...

Multi-lepton production at high transverse momentum at HERA

A search for events containing two or more high-transverse-momentum isolated leptons has been performed in ep collisions with the ZEUS detector at HERA using the full collected data sample, corresponding to an integrated luminosity of 480 pb. The number of observed events has been compared with the prediction from the Standard Model, searching for possible deviations, especially for multilepton...

Elastic electron scattering from methane at high momentum transfer

We describe elastic electron scattering data at high momentum transfer (between ≈20 and ≈40 au) from methane and Xe. Under these conditions there is a significant recoil energy transferred to the target and electrons scattered elastically from methane are separated into two peaks: one due to electrons scattered from carbon, and one due to electrons scattered from hydrogen. The separation of the...