2026-06-01T02:23:39Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/598742023-08-26T19:42:37Zcom_20.500.14352_14col_20.500.14352_15
Recent progress on the chiral unitary approach to meson meson and meson baryon interactions
Peláez Sagredo, José Ramón
51-73
Perturbation-theory
Nonperturbative approach
Nuclear-matter
One-loop
π-π
Scattering
Isoscalar
Dynamics
Channels
Decay
Física-Modelos matemáticos
Física matemática
©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.
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.
DGICYT
Depto. de Física Teórica
Fac. de Ciencias Físicas
TRUE
pub
2023-06-20T20:13:19Z
2023-06-20T20:13:19Z
2000-05-08
journal article
https://hdl.handle.net/20.500.14352/59874
0375-9474
10.1016/S0375-9474(00)00080-4
eng
PB 96-0753
open access
application/pdf
Elsevier Science Bv