Few-Body Systems

, Volume 54, Issue 7–10, pp 1037–1041 | Cite as

K* 0 Σ+ Photoproduction with Evidence for the Kappa Meson Exchange at SPring-8/LEPS

  • Sanghoon HwangEmail author
  • Ken Hicks
  • Jung Keun Ahn
  • Takashi Nakano


Recently, LEPS collaboration reported the parity spin asymmetry for the γ pK* 0Σ+ reaction using linearly polarized photons at beam energies from 1.85 to 2.96 GeV. The parity spin asymmetry (\({P_{\sigma} = 2\rho^{1}_{1-1} - \rho^{1}_{00}}\)) was obtained, with large positive asymmetry at forward angles. This supports that natural-parity exchange is dominant at forward angles for K* 0Σ+ photoproduction, which is consistent with κ meson-exchange. The differential cross sections for the γ pK* 0Σ+ reaction are presented at forward angles averaged over all beam energies. There is good agreement with the differential cross sections from the CLAS and the CBELSA/TAPS collaborations.


Invariant Mass Differential Cross Section Scalar Meson Invariant Mass Spectrum Parity Exchange 
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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • Sanghoon Hwang
    • 1
    • 2
    Email author
  • Ken Hicks
    • 3
  • Jung Keun Ahn
    • 4
  • Takashi Nakano
    • 5
  1. 1.Department of PhysicsKyungpook National UniversityDaeguRepublic of Korea
  2. 2.Advanced Science Research CenterJapan Atomic Energy AgencyTokai, IbarakiJapan
  3. 3.Department of Physics and AstronomyOhio UniversityAthens, OhioUSA
  4. 4.Department of PhysicsPusan National UniversityPusanRepublic of Korea
  5. 5.Research Center for Nuclear PhysicsOsaka UniversityIbaraki, OsakaJapan

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