Finite energy sum rule determination of the scalar meson decay constants and the nature of the a(0)(980)

Authors
Maltman, K
Citation
K. Maltman, Finite energy sum rule determination of the scalar meson decay constants and the nature of the a(0)(980), NUCL PHYS A, 675(1-2), 2000, pp. 209C-212C
Citations number
18
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
675
Issue
1-2
Year of publication
2000
Pages
209C - 212C
Database
ISI
SICI code
0375-9474(20000731)675:1-2<209C:FESRDO>2.0.ZU;2-8
Abstract
A form of QCD sum rules, tested and found to be very reliable in the isovec tor vector channel, is used to determine the scalar current decay constants of the ao resonances. Comparison to the corresponding decay constant of th e K-0(*)(1430) is used to shed light on the nature of the a(0)(980). It is shown that the results of this analysis strongly favor the "unitarized quar k model" scenario for the a(0)(980).