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



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Peláez Sagredo, José Ramón (2000) Recent progress on the chiral unitary approach to meson meson and meson baryon interactions. Nuclear physics A, 670 . 111C-118C. ISSN 0375-9474

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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.

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©Elsevier Science Bv.
Artículo firmado por 14 autores.
KEK-Tanashi International Symposium on Physics of Hadrons and Nuclei (1998. Tokyo, Japón).
We are thankful to the COE Professorship program of Monbusho which enabled E. O. to stay at RCNP where part of the work reported here has been done. E. M. and J. C. N. would like to acknowledge the hospitality of the RCNP of the Osaka University and support from the Ministerio de Educación y Cultura. This work is partly supported by DGICYT, contract number PB 96-0753.

Uncontrolled Keywords:Perturbation-theory; Nonperturbative approach; Nuclear-matter; One-loop; π-π; Scattering; Isoscalar; Dynamics; Channels; Decay
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:35646
Deposited On:12 Feb 2016 17:35
Last Modified:10 Dec 2018 15:10

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