Revealing the large extra dimension effective interaction at an e^+e^- collider with polarized beams

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dc.creatorPankov, A. A.
dc.creatorPaver, N.
dc.creatorTsytrinov, A. V.
dc.date2006-12-09
dc.date.accessioned2026-07-07T10:37:34Z
dc.date.available2026-07-07T10:37:34Z
dc.descriptionContactlike nonstandard effective interactions can be revealed through deviations of observables from the Standard Model predictions. If such deviations were observed, the relevant source should be identified among the possible models that could explain them. We estimate the expected discrimination reach on the ADD model of gravity in large compactified extra dimensions, against the compositeness-inspired four-fermion contact interaction. As basic observables we take the differential cross sections for fermion-pair production at a 0.5-1 TeV electron-positron linear collider with both beams longitudinally polarized. For the four-fermion contact interaction, we assume a general linear combination of the individual models with definite chiralities, and arbitrary coupling constants. Accordingly, the estimated identification reach on the ADD scenario can be considered as `model-independent'. We emphasize the substantial role of beams polarization in enhancing the identification sensitivity.
dc.description14 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0612106
dc.identifierhttp://arxiv.org/abs/hep-ph/0612106
dc.identifierPhys.Rev.D75:095004,2007
dc.identifierdoi:10.1103/PhysRevD.75.095004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180425
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRevealing the large extra dimension effective interaction at an e^+e^- collider with polarized beams
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