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arXiv · 1109.3005

Improved constraints on chiral SU(3) dynamics from kaonic hydrogen

Yoichi Ikeda·Tetsuo Hyodo·Wolfram Weise
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Abstract

A new improved study of K^- - proton interactions near threshold is performed using coupled-channels dynamics based on the next-to-leading order chiral SU(3) meson-baryon effective Lagrangian. Accurate constraints are now provided by new high-precision kaonic hydrogen measurements. Together with threshold branching ratios and scattering data, these constraints permit an updated analysis of the complex barK N and pi Sigma coupled-channels amplitudes and an improved determination of the K^- p scattering length, including uncertainty estimates.

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Yoichi Ikeda, Tetsuo Hyodo, Wolfram Weise. 2011-09-14. Improved constraints on chiral SU(3) dynamics from kaonic hydrogen. https://doi.org/10.1016/j.physletb.2011.10.068

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