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Limits on the brane fluctuations mass and on the brane tension scale from electron-positron colliders

By J. Alcazar, José Alberto Ruiz Cembranos, Antonio Dobado González and Antonio López Maroto


In the context of the brane-world scenarios with compactified large extra dimensions, we study the production of the possible massive brane oscillations (branons) in electron-positron colliders. We compute their contribution to the electroweak gauge bosons decay width and to the single-photon and single-Z processes. With CERN LEP-I results and assuming nonobservation at LEP-II we present exclusion plots for the brane tension tau=f(4) and the branon mass M. Prospects for the next generation of electron-positron colliders are also considered

Topics: Física
Publisher: Amer Physical Soc
Year: 2003
DOI identifier: 10.1103/PhysRevD.67.075010
OAI identifier: oai:www.ucm.es:22150
Provided by: EPrints Complutense

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