Abstract
A high-resolution ( MeV) search for narrow states ( MeV) with masses of MeV in , and electroproduction at small angles and low was performed. These states would be candidate partner states of the reported pentaquark. No statistically significant signal was observed in any of the channels at 90% C.L. Upper limits on forward production were determined to be between 0.8% and 4.9% of the production cross section, depending on the channel and the assumed mass and width of the state.
- Received 18 September 2006
DOI:https://doi.org/10.1103/PhysRevC.75.055208
©2007 American Physical Society