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<E γ<5.5GeV.
| Original language | English |
|---|---|
| Article number | 015205 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 85 |
| Issue number | 1 |
| DOIs | |
| State | Published - 30 Jan 2012 |
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