Document Type
Article
Department/Program
Physics
Journal Title
Physical Review C
Pub Date
2012
Volume
85
Issue
1
Abstract
We searched for the phi(--)(1860) pentaquark in the photoproduction process off the deuteron in the Xi(-)pi(-)-decay channel using CLAS. The invariant-mass spectrum of the Xi(-)pi(-) system does not indicate any statistically significant enhancement near the reported mass M = 1.860 GeV. The statistical analysis of the sideband-subtracted mass spectrum yields a 90%-confidence-level upper limit of 0.7 nb for the photoproduction cross section of phi(--)(1860) with a consecutive decay into Xi(-)pi(-) in the photon-energy range 4.5 GeV < E-gamma < 5.5 GeV.
Recommended Citation
Egiyan, H.; Holtrop, M.; Zana, L.; Griffioen, K. A.; and Zhao, B., Upper limits for the photoproduction cross section for the phi(--)(1860) pentaquark state off the deuteron (2012). Physical Review C, 85(1).
10.1103/PhysRevC.85.015205
DOI
10.1103/PhysRevC.85.015205
