Siam Physics Congress 2010

Oral presentation in SPC2010

Topic : Development of Antikaon-Nucleon Potential Based on Chiral SU(3) Symmetry
Speaker : Rintarn Saengsai (M.Sc.)
Place : Siam Physics Congress 2010, Khanchanaburi, Thailand
Date : 25 - 27 March 2010

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Development of Antikaon_nucleon potential based on chiral SU(3) symmetry
R. Saengsai 1,2*, C. Kobdaj1,2, KKosonthongkee1,2, W.Poonsawat1, Y. Yan1,2
1 School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
2 Thailand Center of Excellence in Physics (ThEP), Commission on Higher Education,  Bangkok 10400, Thailand.


The work is part of a project which is proposed to derive a potential in coordinate space for the coupled Antikaon_nucleon- Pi Sigma - Pi Gamma system. The potential is expected to reproduce the low-energy scattering data of the reactions K-p --> K-p, K^_0n, Pi^0Sigma^0, Pi^+Sigma^-, Pi^-Sigma^+, Pi Gamma the properties of the Lambda(1405) resonance, kaonic hydrogen atom data, and transition amplitudes predicted by other theoretical approaches. In this work we derive the dynamical equations for the coupled-channel Antikaon_nucleon system and evaluate the cross sections of the reactions K-p --> Pi^0Sigma^0, Pi^+Sigma^-, Pi^-Sigma^+  with a phenomenological potential for the coupled Antikaon_nucleon system.

Keyword :  Antikaon_nucleon potentials, coupled-channel, Lambda(1405) resonance, Lippmann-Schwinger (LS), cross sections.