Phenomenological Constraints on Extra-Dimensional Scalars

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dc.creatorAzuelos, G.
dc.creatorBeauchemin, P. -H.
dc.creatorBurgess, C. P.
dc.date2004-01-16
dc.date.accessioned2026-07-07T10:48:58Z
dc.date.available2026-07-07T10:48:58Z
dc.descriptionWe examine whether the ATLAS detector has sensitivity to extra-dimensional scalars (as opposed to components of higher-dimensional tensors which look like 4D scalars), in scenarios having the extra-dimensional Planck scale in the TeV range and $n \ge 2$ nonwarped extra dimensions. Such scalars appear as partners of the graviton in virtually all higher-dimensional supersymmetric theories. Using the scalar's lowest-dimensional effective couplings to quarks and gluons, we compute the rate for the production of a hard jet together with missing energy. We find a nontrivial range of graviscalar couplings to which ATLAS could be sensitive, with experiments being more sensitive to couplings to gluons than to quarks. Graviscalar emission increases the missing-energy signal by adding to graviton production, and so complicates the inference of the extra-dimensional Planck scale from an observed rate. Because graviscalar differential cross sections resemble those for gravitons, it is unlikely that these can be experimentally distinguished from one another should a missing energy signal be observed.
dc.identifierhttps://arxiv.org/abs/hep-ph/0401125
dc.identifierhttp://arxiv.org/abs/hep-ph/0401125
dc.identifierJ.Phys.G31:1-20,2005
dc.identifierdoi:10.1088/0954-3899/31/1/001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184068
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePhenomenological Constraints on Extra-Dimensional Scalars
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