The maximum number of genuine electron-proton coincidences never amounted to more than a few per minute.
The second peak centred near channel 74 derives from genuine electron-proton coincidences.
With an improved geometry approaching 4[pi] solid angle for proton detection we expect to improve the observed rate of electron-proton coincidence detection by two orders of magnitude .
However, VLEPP will be built at Serpukhov, so as to give the opportunity for eventually building connections to UNK and obtaining high-energy electron-proton
and positron-proton collisions.
The experiment will make use of the existing apparatus for the NIST proton-trap lifetime experiment, which can provide substantial background reduction by providing an electron-proton coincidence trigger.
Initial measurements of the electron-proton coincidence rate while the proton-trap lifetime apparatus was last installed on NG-6 showed a total rate of 0.
Optimization tests of the electron-proton coincidence setup are currently in progress using the cold neutron beam.
coincidence events are counted as a function of the neutron spin state to extract a measurement of D.