Thermal ground state for pure SU(2) Yang-Mills thermodynamics
- In this proceeding the emergence of a composite, adjoint-scalar field as an average over (trivial holonomy) calorons and anti-calorons is reviewed. This composite field acts as a background field to the dynamics of perturbative gluons, to which it is coupled via an effective, gauge invariant Lagrangian valid for temperatures above the deconfinement phase transition. Moreover a Higgs mechanism is induced by the composite field: two gluons acquire a quasi-particle thermal mass. On the phenomenological side the composite field acts as a bag pressure which shows a linear dependence on the temperature. As a result the linear rise with temperature of the trace anomaly is obtained and is compared to recent lattice studies.
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| Author: | Francesco GiacosaORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-82681 |
| URL: | https://pos.sissa.it/archive/conferences/077/124/ConfinementVIII_124.pdf |
| ISSN: | 1824-8039 |
| ArXiv Id: | http://arxiv.org/abs/0812.2898v2 |
| Parent Title (English): | Proceedings of Science |
| Publisher: | SISSA |
| Place of publication: | Trieste |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2010/10/19 |
| Year of first Publication: | 2008 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | 8th Conference Quark Confinement and the Hadron Spectrum, September 1-6 2008, Mainz, Germany |
| Release Date: | 2010/10/19 |
| Volume: | 2008 |
| Issue: | (Confinement8)124 |
| Page Number: | 6 |
| First Page: | 1 |
| Last Page: | 6 |
| Note: | Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. |
| Source: | PoS (Confinement8) 124 ; Proceedings of the 8th Conference Quark Confinement and the Hadron Spectrum. September 1-6, 2008, Mainz, Germany |
| HeBIS-PPN: | 229316506 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung-Keine kommerzielle Nutzung-Weitergabe unter gleichen Bedingungen |
