Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron

Details Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron

2003-01-14

arxiv.org/abs/hep-ex/0301020v2

Phys.Rev.Lett.91:012002,2003

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 3 encapsulated postscript figures

Scientific paper

10.1103/PhysRevLett.91.012002

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.

Affiliated with

Also associated with

No associations

Rating

Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-497787