Pole-Extrapolation from the K^±-p Forward Scattering Amplitudes

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概要

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• The method of extrapolation introduced by Cuilli-Cutkosky-Deo is applied to estimate the PYK coupling constant from the K^±-p forward scattering amplitude. We use the low-energy K^--p data combined with the data used in the analysis by Chao and Pietarinen. The result is q_Λ^2+0.8q_Σ^2=27±1, which is much larger than their result and hence indicates how important the low-energy K^--p data in the analysis are. Since Martin and Perrin presented K^--p data which contradict Dumbrais, Dumbrais and Queen's compilation used in the present analysis, we also estimate the coupling constant corresponding to this choice of the data and obtain q_Λ^2+0.8q_Σ^2=11^<+5>_<-2>. However, if we discard all the K^--p data in the momentum range from 0.3 to 2 GeV/c, the predicted coupling constant and real part strongly support the former choice.

• 理論物理学刊行会の論文
• 1973-09-25

著者

• Kariya Tadaaki

  Department Of Physics Hokkaido University

• Kariya Tadaaki

  Department Of Physics Hokkaido University : Semiconductor Component Department Hitachi Works Of Hita

• KARIYA Tadaaki

  Department of Physics, Hokkaido University : Semiconductor Component Department, Hitachi Works of Hitachi, LTD.,

関連論文

• Three-Pion Decays of η and K and the Final State Interactions
• Pole-Extrapolation from the K^±-p Forward Scattering Amplitudes
• Consistency Test of the Low Energy K^^-N Parameters Using Weighted Dispersion Relation

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