At the HERMES experiment a search for the quasi-real photoproduction of the exotic baryon theta+ on a deuterium target and the subsequent decay through pK0Sapp+p - revealed a narrow resonance in the pK0S invariant mass distribution at 1528 MeV. In the search for the corresponding antiparticle theta- the result is consistent with zero events.The drift vertex chambers (DVC) and the front drift chambers (FC) provide the vertex reconstruction in the target cell and the definition of the scattering ... The horizontal length of the drift chambers precluded the use of long horizontal wires.
|Title||:||The Search for Exotic Baryons at the HERMES Experiment|
|Publisher||:||ProQuest - 2008|