Massive Fluctuations in Deconfining SU(2) Yang-Mills Thermodynamics
Author
Source
Advances in High Energy Physics
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
We review how vertex constraints inherited from the thermal ground state strongly reduce the integration support of loop four-momenta associated with massive quasiparticles in bubble diagrams constituting corrections to the free thermal quasiparticle pressure.
In spite of the observed increasingly suppressing effect when increasing 2-particle-irreducible (2PI) loop order, a quantitative analysis enables us to disprove the conjecture voiced in hep-th/0609033 that the loop expansion would terminate at a finite order.
This reveals the necessity to investigate exact expressions of (at least some) higher-loop order diagrams.
Explicit calculation shows that although the behaviour of the 2PI three-loop contribution at low temperatures displays hierarchical suppression compared to lower loop orders, its high-temperature expression instead dominates all lower orders.
However, an all-loop-order resummation of a class of 2PI bubble diagrams is shown to yield an analytic continuation of the low-temperature hierarchy to all temperatures in the deconfining phase.
American Psychological Association (APA)
Bischer, Ingolf. 2017. Massive Fluctuations in Deconfining SU(2) Yang-Mills Thermodynamics. Advances in High Energy Physics،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1122233
Modern Language Association (MLA)
Bischer, Ingolf. Massive Fluctuations in Deconfining SU(2) Yang-Mills Thermodynamics. Advances in High Energy Physics No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1122233
American Medical Association (AMA)
Bischer, Ingolf. Massive Fluctuations in Deconfining SU(2) Yang-Mills Thermodynamics. Advances in High Energy Physics. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1122233
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122233