EXA 2011 pp 239-242 | Cite as

Energy dependence of K − -“pp” effective potential derived from coupled-channel Green’s function

  • Takahisa KoikeEmail author
  • Toru Harada
Conference paper


We investigate the energy dependence of a single-channel effective potential between the K − and the “pp”-core nucleus, which can be obtained as an K −-“pp” equivalent local potential from a coupled-channel model for \(\bar{K}(NN)\)-πN) systems. It turns out that the imaginary part of the resultant potential near the πΣN decay threshold can well approximate the phase space suppression factor of K − ppπΣN decay modes. The effects on the pole position of the πN) state in the πΣN channel are also discussed.


Kaonic nuclei Equivalent local potential 


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Strangeness Nuclear Physics LaboratoryRIKEN Nishina CenterSaitamaJapan
  2. 2.Research Center for Physics and MathematicsOsaka Electro-Communication UniversityOsakaJapan

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