dc.contributor.author | Brauner, Tomas | |
dc.contributor.author | Kolesova, Helena | |
dc.date.accessioned | 2023-01-25T14:28:52Z | |
dc.date.available | 2023-01-25T14:28:52Z | |
dc.date.created | 2019-06-18T22:37:55Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Brauner, T., & Kolešová, H. (2019). Gauged Wess-Zumino terms for a general coset space. Nuclear Physics B, 945, 114676. | en_US |
dc.identifier.issn | 0550-3213 | |
dc.identifier.uri | https://hdl.handle.net/11250/3046382 | |
dc.description.abstract | The low-energy physics of systems with spontaneously broken continuous symmetry is dominated by the ensuing Nambu-Goldstone bosons. It has been known for half a century how to construct invariant Lagrangian densities for the low-energy effective theory of Nambu-Goldstone bosons. Contributions, invariant only up to a surface term – also known as the Wess-Zumino (WZ) terms – are more subtle, and as a rule are topological in nature. Although WZ terms have been studied intensively in theoretically oriented literature, explicit expressions do not seem to be available in sufficient generality in a form suitable for practical applications. Here we construct the WZ terms in
spacetime dimensions for an arbitrary compact, semisimple and simply connected symmetry group G and its arbitrary connected unbroken subgroup H, provided that the d-th homotopy group of the coset space
is trivial. Coupling to gauge fields for the whole group G is included throughout the construction. We list a number of explicit matrix expressions for the WZ terms in four spacetime dimensions, including those for QCD-like theories, that is vector-like gauge theories with fermions in a complex, real or pseudoreal representation of the gauge group. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Gauged Wess-Zumino terms for a general coset space | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | The authors | en_US |
dc.subject.nsi | VDP::Fysikk: 430 | en_US |
dc.subject.nsi | VDP::Physics: 430 | en_US |
dc.source.pagenumber | 20 | en_US |
dc.source.volume | 945 | en_US |
dc.source.journal | Nuclear Physics B | en_US |
dc.identifier.doi | 10.1016/j.nuclphysb.2019.114676 | |
dc.identifier.cristin | 1705909 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |