The radiative decay phi -> gamma pi pi in a coupled-channel model and the structure of f(0)(980)

Authors
Markushin, VE
Citation
Ve. Markushin, The radiative decay phi -> gamma pi pi in a coupled-channel model and the structure of f(0)(980), EUR PHY J A, 8(3), 2000, pp. 389-399
Citations number
48
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
8
Issue
3
Year of publication
2000
Pages
389 - 399
Database
ISI
SICI code
1434-6001(200007)8:3<389:TRDP-G>2.0.ZU;2-T
Abstract
A coupled-channel model is used to study the nature of the scalar mesons pr oduced in the decay phi --> gamma pi pi. The K (K) over bar molecular pictu re of f(0)(980) is found to be in a good agreement viith the recent experim ental data from SND and CMD-2. The structure of the light scalar mesons is elucidated by investigating the S-matrix poles and the q (q) over bar spect ral density.