Abstract
For the first time, the reaction has been analyzed in order to search for the exotic pentaquark baryon . The data were taken at Jefferson Laboratory, using the Hall- tagged-photon beam of energy between 0.8 and 3.6 GeV and the CEBAF Large Acceptance Spectrometer (CLAS). No statistically significant structures were observed in the invariant-mass distribution. The upper limit on the integrated cross section has been calculated and found to be between 5 and 25 nb, depending on the production model assumed. The upper limit on the differential cross section is also reported.
- Received 26 April 2006
DOI:https://doi.org/10.1103/PhysRevLett.97.032001
©2006 American Physical Society