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

Yoichi Ikeda, Tetsuo Hyodo, Wolfram Weise

Research output: Contribution to journalArticlepeer-review

148 Citations (Scopus)


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 KN and πσ coupled-channels amplitudes and an improved determination of the K-p scattering length, including uncertainty estimates.

Original languageEnglish
Pages (from-to)63-67
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1
Publication statusPublished - Nov 30 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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