Inra-red renormalization group calculation of the O(N) model in the brokenphase

Authors
Liu, CA
Citation
Ca. Liu, Inra-red renormalization group calculation of the O(N) model in the brokenphase, HIGH EN P N, 23(6), 1999, pp. 594-600
Citations number
8
Categorie Soggetti
Physics
Journal title
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
ISSN journal
02543052 → ACNP
Volume
23
Issue
6
Year of publication
1999
Pages
594 - 600
Database
ISI
SICI code
0254-3052(199906)23:6<594:IRGCOT>2.0.ZU;2-S
Abstract
The infra-red renormalization properties of the O(N) model is studied to tw o loops. The calculation is done within a mass dependent renormalization sc heme. The mass-dependent one-loop renormalization group coefficients are ob tained and the two-loop coefficients are calculated in the infrared limit. We observe cancellations within the framework of field theory which make th e two-loop beta-function coincide with the one-loop beta-function in the in fra-red limit.