{ "id": "1704.07096", "version": "v1", "published": "2017-04-24T09:06:24.000Z", "updated": "2017-04-24T09:06:24.000Z", "title": "Massive fluctuations in deconfining SU(2) Yang-Mills thermodynamics", "authors": [ "Ingolf Bischer" ], "comment": "12 pages, 8 figures", "categories": [ "hep-th" ], "abstract": "We review how vertex constraints inherited from the thermal ground state strongly reduce the integration support of loop four-momenta associated with massive quasi-particles in bubble diagrams constituting corrections to the free thermal quasi-particle 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.", "revisions": [ { "version": "v1", "updated": "2017-04-24T09:06:24.000Z" } ], "analyses": { "keywords": [ "yang-mills thermodynamics", "deconfining su", "massive fluctuations", "thermal ground state strongly reduce", "low temperatures displays hierarchical suppression" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }