Article
Upper limits for the photoproduction cross section for the Φ−− (1860) pentaquark state off the deuteron
Physical Review C
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2012
Disciplines
Abstract
We searched for the Φ−−(1860) pentaquark in the photoproduction process off the deuteron in the Ξ−π−-decay channel using CLAS. The invariant-mass spectrum of the Ξ−π− 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 Φ−−(1860) with a consecutive decay into Ξ−π− in the photon-energy range 4.5GeV
Comments
Copyright American Physical Society
Publisher final version available at
http://prc.aps.org/pdf/PRC/v85/i1/e015205
Published Citation
H. Egiyan et al. [CLAS Collaboration], "Upper limits for the photoproduction cross section for the Φ−− (1860) pentaquark state off the deuteron," Physical Review C, Volume 85, Issue 1 015205 (2012).
DOI: 10.1103/PhysRevC.85.015205
DOI
10.1103/PhysRevC.85.015205
None
Peer Reviewed
Citation Information
H. Egiyan, Angela Biselli and CLAS Collaboration. "Upper limits for the photoproduction cross section for the Φ−− (1860) pentaquark state off the deuteron" Physical Review C Vol. 85 Iss. 1 (2012) Available at: http://works.bepress.com/angela_biselli/80/