Standard Model Gauging of the WZW Term: Anomalies, Global Currents and pseudo-Chern-Simons Interactions

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dc.creatorHarvey, Jeffrey A.
dc.creatorHill, Christopher T.
dc.creatorHill, Richard J.
dc.date2007-12-10
dc.date.accessioned2026-07-07T11:13:39Z
dc.date.available2026-07-07T11:13:39Z
dc.descriptionThe standard model $SU(2)_L\times U(1)_Y$ gauging of the Wess-Zumino-Witten term requires a modified counterterm when background fields, needed to generate the full set of currents, are introduced. The modified counterterm plays an essential role in properly defining covariant global currents and their anomalies. For example, it is required in order to correctly derive the gauge invariant baryon number current and its anomalous divergence. The background fields can also be promoted to a description of the physical spin-1 vector and axial-vector mesons in QCD and the counterterm leads to novel interactions. These are (pseudo-) Chern-Simons terms, such as $ε^{μνρσ} ω_μZ_ν\partial_ρA_σ$ and $ε^{μνρσ} ρ^{\pm}_μW^{\mp}_ν\partial_ρA_σ$ that mediate new interactions between neutrinos and photons at finite baryon density.
dc.description14 pages
dc.identifierhttps://arxiv.org/abs/0712.1230
dc.identifierhttp://arxiv.org/abs/0712.1230
dc.identifierPhys.Rev.D77:085017,2008
dc.identifierdoi:10.1103/PhysRevD.77.085017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191794
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleStandard Model Gauging of the WZW Term: Anomalies, Global Currents and pseudo-Chern-Simons Interactions
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