Low Energy Parameters of the KK and Pipi Scalar-Isoscalar Interactions

Abstract

Threshold expansions of the $\pi \pi$ and $K\overline{K}$ spin 0 and isospin 0 scattering amplitudes are performed. Scattering lengths, effective ranges and so--called volume parameters are evaluated. Good agreement with the existing experimental data for the $\pi \pi$ scalar--isoscalar amplitude is found. An importance of future accurate measurements of the $K\overline{K}$ threshold parameters is stressed. New data are needed to understand the basic features of the scalar mesons.

9 pages in LATEX, report no INP-1675/PH

References in corpus (3)

• Relativistic Effects in the Scalar Meson Dynamics
• pi-pi scattering in a QCD based model field theory
• The Production of the Exotic Atoms ${\pi }^{+}{\pi }^{-}$, $K^{+}{\pi }^{-}$ and $K^{+}{K}^{-}$

Cited by in corpus (9)

• Photoproduction of ${\pi }^{+}{\pi }^{-}$ meson pairs on the proton
• Coupled Channel Analysis of S-Wave Pion-Pion and Kaon-Kaon Photoproduction
• Coupled-channel effects in the pp -> ppK+K- reaction
• Generalized Dalitz Plot analysis of the near threshold pp-->ppK+K- reaction in view of the K+K- final state interaction
• Combined analysis of the $K^{+}{K}^{-}$ interaction using near threshold $pp\to pp{K}^{+}{K}^{-}$ data
• Decay of kaonium in a chiral approach
• KKbar molecules with momentum-dependent interactions
• Strong interaction between kaons in the reactions e+ e- --> K+ K- gamma and e+ e- --> K0 K0bar gamma
• Low Energy Experiments on pi-pi Scattering