Abstract
We searched for the pentaquark in the photoproduction process off the deuteron in the -decay channel using CLAS. The invariant-mass spectrum of the system does not indicate any statistically significant enhancement near the reported mass GeV. The statistical analysis of the sideband-subtracted mass spectrum yields a -confidence-level upper limit of 0.7 nb for the photoproduction cross section of with a consecutive decay into in the photon-energy range .
3 More- Received 20 September 2011
DOI:https://doi.org/10.1103/PhysRevC.85.015205
©2012 American Physical Society