QCD glueballs within a coupled cluster approach

Authors
Schutte, D Wichmann, A Wethkamp, V
Citation
D. Schutte et al., QCD glueballs within a coupled cluster approach, INT J MOD B, 15(10-11), 2001, pp. 1732-1735
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN journal
02179792 → ACNP
Volume
15
Issue
10-11
Year of publication
2001
Pages
1732 - 1735
Database
ISI
SICI code
0217-9792(20010510)15:10-11<1732:QGWACC>2.0.ZU;2-P
Abstract
The validity of the coupled cluster method is studied within the lattice ga uge field theory given by a SU(2) pure glue theory in 2+1 dimensions. Satis factory convergence is observed for the ground state, but the method is les s successful for the prediction of glueballs. We propose to improve the cou pled cluster method for excited states by combining it with standard Monte- Carlo techniques which potentially cure the non-hermiticity problems caused by the truncation.