Finite volume QCD at fixed topological charge

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dc.creatorAoki, Sinya
dc.creatorFukaya, Hidenori
dc.creatorHashimoto, Shoji
dc.creatorOnogi, Tetsuya
dc.date2007-07-03
dc.date2007-07-19
dc.date.accessioned2026-07-07T11:17:28Z
dc.date.available2026-07-07T11:17:28Z
dc.descriptionIn finite volume the partition function of QCD with a given $θ$ is a sum of different topological sectors with a weight primarily determined by the topological susceptibility. If a physical observable is evaluated only in a fixed topological sector, the result deviates from the true expectation value by an amount proportional to the inverse space-time volume 1/V. Using the saddle point expansion, we derive formulas to express the correction due to the fixed topological charge in terms of a 1/V expansion. Applying this formula, we propose a class of methods to determine the topological susceptibility in QCD from various correlation functions calculated in a fixed topological sector.
dc.description22pages, references added
dc.identifierhttps://arxiv.org/abs/0707.0396
dc.identifierhttp://arxiv.org/abs/0707.0396
dc.identifierPhys.Rev.D76:054508,2007
dc.identifierdoi:10.1103/PhysRevD.76.054508
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193019
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Theory
dc.titleFinite volume QCD at fixed topological charge
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