Article ID Journal Published Year Pages File Type
10723428 Physics Letters B 2011 5 Pages PDF
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 K¯N and πΣ coupled-channels amplitudes and an improved determination of the K−p scattering length, including uncertainty estimates.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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