de Forcrand, P.; Pepe, M.; Wiese, Uwe-Jens (2013). Walking near a conformal fixed point. PoS - proceedings of science, LATTIC(041), pp. 1-7. Scuola Internazionale Superiore di Studi Avanzati SISSA
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We investigate the 2-d O(3) model with a q-term as a toy model for slowly walking 4-d non-Abelian gauge theories. Using the very efficient meron-cluster algorithm, an accurate investigation of the scale dependence of the renormalized coupling is carried out for different values of the vacuum angle q. Approaching q = p, the infrared dynamics of the 2-d O(3) model is determined by a non-trivial conformal fixed point. We provide evidence for a slowly walking behavior near the fixed point and we perform a finite-size scaling analysis of the mass gap.
Item Type: |
Conference or Workshop Item (Paper) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Theoretical Physics 10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) |
UniBE Contributor: |
Wiese, Uwe-Jens |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1824-8039 |
Publisher: |
Scuola Internazionale Superiore di Studi Avanzati SISSA |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
14 Aug 2014 10:16 |
Last Modified: |
16 Sep 2023 11:20 |
BORIS DOI: |
10.7892/boris.46325 |
URI: |
https://boris.unibe.ch/id/eprint/46325 |
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