Selecting Gauge Theories on an Interval by 5D Gauge Transformations

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dc.creatorSakai, Norisuke
dc.creatorUekusa, Nobuhiro
dc.date2006-04-18
dc.date2007-08-10
dc.date.accessioned2026-07-07T11:27:26Z
dc.date.available2026-07-07T11:27:26Z
dc.descriptionGauge symmetry breaking by boundary conditions is studied in a general warped geometry in five dimensions. It has been suggested that a wider class of boundary conditions is allowed by requiring only vanishing surface terms when deriving the field equations for gauge theories on an interval (i.e., employing a variational principle), in comparison to the twist in orbifolding with automorphisms of the Lie algebra. We find that there are classes of boundary conditions allowed by the variational principle which violate the Ward-Takahashi identity and give four-point tree amplitudes that increase with energy in channels that have not yet been explored, leading to cross sections that increase as powers of the energy (which violates the tree level unitarity). We also find that such boundary conditions are forbidden by the requirement that the definitions of the restricted class of five-dimensional (5D) gauge transformations be consistent.
dc.description21 pages, 4 figures; typos corrected(v2), a footnote added for section 3(v3), added explanations(v4), typos corrected, a part of section 2.3 restructured and paragraphs added for section 3(v5), presentation modified and typos corrected(v6), PTP version(v7)
dc.identifierhttps://arxiv.org/abs/hep-th/0604121
dc.identifierhttp://arxiv.org/abs/hep-th/0604121
dc.identifierProg.Theor.Phys.118:315-335,2007
dc.identifierdoi:10.1143/PTP.118.315
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196150
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSelecting Gauge Theories on an Interval by 5D Gauge Transformations
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