Recent progress on the chiral unitary approach to meson meson and meson baryon interactions

Abstract

We report on recent progress on the chiral unitary approach, analogous to the effective range expansion in Quantum Mechanics, which is shown to have a much larger convergence radius than ordinary chiral perturbation theory, allowing one to reproduce data for meson meson interaction up to 1.2 GeV. Applications to physical processes so far unsuited for a standard chiral perturbative approach are presented. Results for the extension of these ideas to the meson baryon sector are discussed, together with applications to kaons in a nuclear medium and $K^{-}$ atoms.

Contribution to the KEK Tanashi Symposium on Physics of Hadrons and Nuclei, Tokyo, December 1998, 10 pages, 3 postscript figures. To be published as a special issue of Nuclear Physics A

References in corpus (10)

• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Non-perturbative Approach to effective chiral Lagrangians and Meson Interactions
• Photoproduction of the Lambda(1405) on the proton and nuclei
• KK bar scattering amplitude to one loop in chiral perturbation theory, its unitarization and pion form factors
• Radiative decay of rho^0 and phi mesons in a chiral unitary approach
• First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay
• The phi --> gamma K0 bar(K0) Decay
• Chiral nonperturvative approach to the isoscalar s-wave pion-pion interaction in a nuclear medium
• Non-perturbative chiral approach to Kp -->gamma Y reactions
• Search for rare Phi decays in pi+ pi_ gamma final state

Cited by in corpus (1)

• Chiral unitary approach to the K^- deuteron scattering length