ANALYSIS OF PI-PI-SCATTERING WITH ALLOWANCE FOR THE K(K)BAR AND ETA-ETA-THRESHOLDS

Authors
KRUPA D MESHCHERYAKOV VA SUROVTSEV YS
Citation
D. Krupa et al., ANALYSIS OF PI-PI-SCATTERING WITH ALLOWANCE FOR THE K(K)BAR AND ETA-ETA-THRESHOLDS, Soviet journal of nuclear physics, 54(5), 1991, pp. 862-866
Citations number
31
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
Soviet journal of nuclear physics → ACNP
ISSN journal
00385506
Volume
54
Issue
5
Year of publication
1991
Pages
862 - 866
Database
ISI
SICI code
0038-5506(1991)54:5<862:AOPWAF>2.0.ZU;2-W
Abstract
A procedure is proposed for taking into account the eight-sheeted stru cture of the Riemann surface of a three-channel S matrix. The represen tation of resonances on this surface is discussed. An analysis is made of experimental data on the isoscalar s-wave pi-pi-scattering in a re gion including the KKBAR and eta-eta-thresholds (0.7-1.6 GeV) for the purpose of determining the resonance parameters.