corner
corner

Phys. Rev. C 77, 045204 (2008) [11 pages]

Nucleon and Δ resonances in KΣ(1385) photoproduction from nucleons

Download: PDF (355 kB) Buy this article Export: BibTeX or EndNote (RIS)

Yongseok Oh1,*, Che Ming Ko1,†, and K. Nakayama2,3,‡
1Cyclotron Institute and Physics Department, Texas A&M University, College Station, Texas 77843, USA
2Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, USA
3Institut für Kernphysik, Forschungszentrum Jülich, D-52425 Jülich, Germany

Received 3 January 2008; published 14 April 2008

The reaction mechanisms for KΣ(1385) photoproduction from the reaction γpK+Σ0(1385) in the resonance energy region are investigated in a hadronic model. Both contributions from N and Δ resonances of masses around 2 GeV as given in the Review of Particle Data Group and by the quark model predictions are included. The Lagrangians for describing the decays of these resonances into KΣ(1385) are constructed with the coupling constants determined from the decay amplitudes predicted by a quark model. Comparing the resulting total cross section for the reaction γpK+Σ0(1385) with the preliminary data from the Thomas Jefferson National Accelerator Facility, we find that the most important contributions are from the two-star-rated resonances Δ(2000)F35,Δ(1940)D33, and N(2080)D13, as well as the missing resonance N3/2-(2095) predicted in the quark model. Predictions on the differential cross section and photon asymmetry in this reaction are also given.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.77.045204
DOI:
10.1103/PhysRevC.77.045204
PACS:
25.20.Lj, 13.60.Le, 13.60.Rj, 14.20.Gk

*yoh@comp.tamu.edu

ko@comp.tamu.edu

nakayama@uga.edu