Fermion decoupling and the axial anomaly on the lattice

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dc.creatorBanerjee, H.
dc.creatorDe, Asit K.
dc.date1999-05-11
dc.date.accessioned2026-07-07T03:40:16Z
dc.date.available2026-07-07T03:40:16Z
dc.descriptionBy an explicit calculation of the continuum limit of the triangle graph amplitude in lattice QED we show that in the axial Ward identity the ABJ anomaly exactly cancels the pseudoscalar density term in the limit of infinite fermion mass $m$. The result, a reflection of decoupling of the heavy fermion, provides a convenient framework for computing the flavor-singlet or U(1) axial anomaly in non-Abelian gauge theories on lattice. Our calculations on the lattice are performed using Wilson fermions but the results are general.
dc.description8 pages
dc.identifierhttps://arxiv.org/abs/hep-lat/9905014
dc.identifierhttp://arxiv.org/abs/hep-lat/9905014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/39211
dc.subjectHigh Energy Physics - Lattice
dc.titleFermion decoupling and the axial anomaly on the lattice
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