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The mass of the η′ in self-dual QCD

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dc.contributor.authorHutter, Marcus
dc.date.accessioned2015-09-04T00:56:21Z
dc.date.available2015-09-04T00:56:21Z
dc.date.issued1996-01-18
dc.description.abstractThe QCD gauge field is modeled as an ensemble of statistically independent self-dual and anti-self-dual regions. This model is motivated by instanton physics. The scale anomaly then allows one to relate the topological susceptibility to the gluon condensate. With the help of Witten's formula for mη′ and an estimate of the suppression of the gluon condensate due to light quarks the mass of the η′ can be related to fπ and the physical gluon condensate. We obtain the quite satisfactory value mη′ = 884 ± 116 MeV. Using the physical η′ mass as an input it is in principle possible to obtain information about the interaction between instantons and anti-instantons.en_AU
dc.identifier.issn0370-2693en_AU
dc.identifier.urihttp://hdl.handle.net/1885/15182
dc.publisherElsevieren_AU
dc.rights© 1996 Elsevier Science. B.V. http://www.sherpa.ac.uk/romeo/issn/0370-2693/..."author can archive post-print. On pre-print server, author's website, institutional repository" from SHERPA/RoMEO site (as at 4/09/15).en_AU
dc.sourcePhysics Letters Ben_AU
dc.titleThe mass of the η′ in self-dual QCDen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Access
local.bibliographicCitation.issue1-4en_AU
local.bibliographicCitation.lastpage278en_AU
local.bibliographicCitation.startpage275en_AU
local.contributor.affiliationHutter, M., Research School of Computer Science, The Australian National Universityen_AU
local.contributor.authoruidu4350841en_AU
local.identifier.citationvolume367en_AU
local.identifier.doi10.1016/0370-2693(95)01411-Xen_AU
local.publisher.urlhttp://www.elsevier.com/en_AU
local.type.statusAccepted Versionen_AU

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