GLUONIC HADRONS

Authors
Citation
Ls. Kisslinger, GLUONIC HADRONS, Nuclear physics. A, 629(1-2), 1998, pp. 30-36
Citations number
22
Categorie Soggetti
Physics, Nuclear
Journal title
ISSN journal
03759474
Volume
629
Issue
1-2
Year of publication
1998
Pages
30 - 36
Database
ISI
SICI code
0375-9474(1998)629:1-2<30:>2.0.ZU;2-Y
Abstract
We investigate muonic components of baryons and conclude that the nucl eon has little valence glue, while the Roper resonance is largely a hy brid, In our study Of scalar hadrons ive find a pure glueball mode pos sible near 500 Mev, while mixed scalar mesons and glueballs are in the region of the f(0)(1500) and the f(0)(1370), with the former being ma inly a glueball and the latter mainly a meson. Tests of these states b y decay branching ratios require three-point functions, and nonlocal c ondensates are useful for theoretical studies within the general metho d of QCD sum rules. We use the Dyson-Schwinger method to study the str ucture of the gluon propagator and nonlocal quark condensates.