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Upper limits for the photoproduction cross section for the Phi--(1860) pentaquark state off the deuteron
- Source :
- Physical Review C, Physical Review C, American Physical Society, 2012, 85, pp.015205. ⟨10.1103/PhysRevC.85.015205⟩, Physical Review C, 2012, 85, pp.015205. ⟨10.1103/PhysRevC.85.015205⟩
- Publication Year :
- 2012
- Publisher :
- HAL CCSD, 2012.
-
Abstract
- See paper for full list of authors; 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 < Egamma < 5.5 GeV.
Details
- Language :
- English
- ISSN :
- 24699985 and 24699993
- Database :
- OpenAIRE
- Journal :
- Physical Review C, Physical Review C, American Physical Society, 2012, 85, pp.015205. ⟨10.1103/PhysRevC.85.015205⟩, Physical Review C, 2012, 85, pp.015205. ⟨10.1103/PhysRevC.85.015205⟩
- Accession number :
- edsair.doi.dedup.....a19906f894305388cf5a172c8f93283f