000860323 001__ 860323 000860323 005__ 20200914101529.0 000860323 0247_ $$2doi$$a10.1103/PhysRevD.63.074503 000860323 0247_ $$2ISSN$$a0556-2821 000860323 0247_ $$2ISSN$$a1089-4918 000860323 0247_ $$2ISSN$$a1538-4500 000860323 0247_ $$2ISSN$$a1550-2368 000860323 0247_ $$2ISSN$$a1550-7998 000860323 0247_ $$2ISSN$$a2470-0010 000860323 0247_ $$2ISSN$$a2470-0029 000860323 037__ $$aFZJ-2019-01098 000860323 082__ $$a530 000860323 1001_ $$0P:(DE-HGF)0$$aStruckmann, T.$$b0 000860323 245__ $$aFlavor singlet pseudoscalar masses in N f = 2 QCD 000860323 260__ $$aMelville, NY$$bInst.812068$$c2001 000860323 264_1 $$2Crossref$$3online$$bAmerican Physical Society (APS)$$c2001-03-05 000860323 264_1 $$2Crossref$$3print$$bAmerican Physical Society (APS)$$c2001-03-01 000860323 3367_ $$2DRIVER$$aarticle 000860323 3367_ $$2DataCite$$aOutput Types/Journal article 000860323 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1600071302_28826 000860323 3367_ $$2BibTeX$$aARTICLE 000860323 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000860323 3367_ $$00$$2EndNote$$aJournal Article 000860323 520__ $$aWe perform a lattice mass analysis in the flavor singlet pseudoscalar channel on the SESAM and TχL full QCD vacuum configurations, with 2 active flavors of dynamical Wilson fermions at β=5.6. At our inverse lattice spacing, a−1≈2.3 GeV, we retrieve by a chiral extrapolation to the physical light quark masses the value mη′=3.7+8−4mπ. A crude extrapolation from (Nf=3) phenomenology would suggest mη′≈5.1mπ for Nf=2 QCD. We verify that the mass gap between the singlet state η′ and the π flavor triplet state is due to gauge configurations with nontrivial topology. 000860323 542__ $$2Crossref$$i2001-03-05$$uhttp://link.aps.org/licenses/aps-default-license 000860323 588__ $$aDataset connected to CrossRef 000860323 7001_ $$0P:(DE-HGF)0$$aSchilling, K.$$b1 000860323 7001_ $$0P:(DE-HGF)0$$aBali, G.$$b2 000860323 7001_ $$0P:(DE-Juel1)132090$$aEicker, N.$$b3$$ufzj 000860323 7001_ $$0P:(DE-HGF)0$$aGüsken, S.$$b4 000860323 7001_ $$0P:(DE-Juel1)132179$$aLippert, Th.$$b5$$ufzj 000860323 7001_ $$0P:(DE-HGF)0$$aNeff, H.$$b6 000860323 7001_ $$0P:(DE-Juel1)132215$$aOrth, B.$$b7$$ufzj 000860323 7001_ $$0P:(DE-HGF)0$$aSchroers, W.$$b8 000860323 7001_ $$0P:(DE-HGF)0$$aViehoff, J.$$b9 000860323 7001_ $$0P:(DE-HGF)0$$aUeberholz, P.$$b10 000860323 77318 $$2Crossref$$3journal-article$$a10.1103/physrevd.63.074503$$b: American Physical Society (APS), 2001-03-05$$n7$$p074503$$tPhysical Review D$$v63$$x0556-2821$$y2001 000860323 773__ $$0PERI:(DE-600)2844732-3$$a10.1103/PhysRevD.63.074503$$gVol. 63, no. 7, p. 074503$$n7$$p074503$$tPhysical review / D$$v63$$x0556-2821$$y2001 000860323 909CO $$ooai:juser.fz-juelich.de:860323$$pextern4vita 000860323 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$aExternal Institute$$b1$$kExtern 000860323 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)132090$$aForschungszentrum Jülich$$b3$$kFZJ 000860323 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)132179$$aForschungszentrum Jülich$$b5$$kFZJ 000860323 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)132215$$aForschungszentrum Jülich$$b7$$kFZJ 000860323 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS 000860323 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bPHYS REV D : 2016 000860323 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline 000860323 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search 000860323 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC 000860323 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List 000860323 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index 000860323 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection 000860323 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded 000860323 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences 000860323 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5 000860323 980__ $$ajournal 000860323 980__ $$aEDITORS 000860323 980__ $$aI:(DE-Juel1)JSC-20090406 000860323 980__ $$aI:(DE-Juel1)NIC-20090406 000860323 980__ $$aI:(DE-Juel1)ZB-20090406 000860323 9801_ $$aEXTERN4VITA