An optimized perturbation expansion for a global O(2) theory

Authors
Evans, TS Ivin, M Mobius, M
Citation
Ts. Evans et al., An optimized perturbation expansion for a global O(2) theory, NUCL PHYS B, 577(1-2), 2000, pp. 325-340
Citations number
28
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B
ISSN journal
05503213 → ACNP
Volume
577
Issue
1-2
Year of publication
2000
Pages
325 - 340
Database
ISI
SICI code
0550-3213(20000619)577:1-2<325:AOPEFA>2.0.ZU;2-M
Abstract
We use an optimized perturbation expansion called the linear delta-expansio n to study the phase transition in a Higgs sector with a continuous symmetr y and large couplings. Our results show how to use this non-perturbative me thod successfully for such problems. We also show how to simplify the metho d without losing any flexibility. (C) 2000 Elsevier Science B.V. All rights reserved.