2,160 research outputs found
Future Measurements of Deeply Virtual Compton Scattering at HERMES
Prospects for future measurements of Deeply Virtual Compton Scattering at
HERMES are studied using different simple models for parameterizations of
generalized parton distributions (GPDs). Measurements of the lepton charge and
lepton beam helicity asymmetry will yield important input for theoretical
models towards the future extraction of GPDs.Comment: 12 pages, 7 figure
Resonant tunneling through a macroscopic charge state in a superconducting SET transistor
We predict theoretically and observe in experiment that the differential
conductance of a superconducting SET transistor exhibits a peak which is a
complete analogue in a macroscopic system of a standard resonant tunneling peak
associated with tunneling through a single quantum state. In particular, in a
symmetric transistor, the peak height is universal and equal to . Away from the resonance we clearly observe the co-tunneling current
which in contrast to the normal-metal transistor varies linearly with the bias
voltage.Comment: 11 pages, 3 figures, Fig. 1 available upon request from the first
autho
- …