Universal Extra Dimensions, Radiative Returns and the Inverse Problem at a Linear e+e- Collider

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dc.creatorBhattacherjee, B.
dc.creatorKundu, A.
dc.creatorRai, S. K.
dc.creatorRaychaudhuri, S.
dc.date2008-05-23
dc.date2008-09-27
dc.date.accessioned2026-07-07T12:22:21Z
dc.date.available2026-07-07T12:22:21Z
dc.descriptionIn a five-dimensional model with one Universal Extra Dimension (UED), signals for a pair of n = 1 Kaluza-Klein excitations could be easily observed at a future e+ e- collider if the process in question is kinematically allowed. However, these signals would prove difficult to distinguish from those predicted in other models, such as those with an extended gauge symmetry or supersymmetry. A much better power of discrimination is provided by the fact that the same machine could also produce the n=2 gauge bosons γ_2 and Z_2 as resonances in fermion pair-production without any upgrade in the collision energy \sqrt{s}. Assuming a fixed \sqrt{s}, as is expected at upcoming e+e- machines, we investigate the role of beam radiation in helping to excite such resonances through radiative returns. We then show how these resonances can yield unambiguous signals for UED, if taken in conjunction with the production of Z_1 pairs, identified by their decays to leptons and missing transverse energy.
dc.descriptionFig 6 extended, some comments and references added
dc.identifierhttps://arxiv.org/abs/0805.3619
dc.identifierhttp://arxiv.org/abs/0805.3619
dc.identifierPhys.Rev.D78:115005,2008
dc.identifierdoi:10.1103/PhysRevD.78.115005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213624
dc.subjectHigh Energy Physics - Phenomenology
dc.titleUniversal Extra Dimensions, Radiative Returns and the Inverse Problem at a Linear e+e- Collider
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