Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
| dc.creator | LEPS Collaboration | |
| dc.creator | Nakano, T. | |
| dc.date | 2003-01-14 | |
| dc.date | 2003-07-08 | |
| dc.date.accessioned | 2026-07-07T10:32:14Z | |
| dc.date.available | 2026-07-07T10:32:14Z | |
| dc.description | The gamma n -> K+ K- n reaction on 12C has been studied by measuring both K+ and K- at forward angles. A sharp baryon resonance peak was observed at 1.54 +- 0.01 GeV with a width smaller than 25 MeV and a Gaussian significance of 4.6 sigma. The strangeness quantum number (S) of the baryon resonance is +1. It can be interpreted as a molecular meson-baryon resonance or alternatively as an exotic 5-quark state (uudd{s_bar}) that decays into a K+ and a neutron. The resonance is consistent with the lowest member of an anti-decuplet of baryons predicted by the chiral soliton model. | |
| dc.description | 12 pages, 3 encapsulated postscript figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0301020 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0301020 | |
| dc.identifier | Phys.Rev.Lett.91:012002,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.91.012002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178684 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron | |
| dc.type | text |