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Gravitational Lorentz violations from M-theory

par Bekaert, Xavier ;Boulanger, Nicolas ;Vazquez-Poritz, Justin
Référence The journal of high energy physics (Online), 6, 10, page (1201-1213)
Publication Publié, 2002-10

Article révisé par les pairs

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Résumé :

In an attempt to bridge the gap between M-theory and braneworld phenomenology, we present various gravitational Lorentz-violating braneworlds which arise from p-brane systems. Lorentz invariance is still preserved locally on the braneworld. For certain p-brane intersections, the massless graviton is quasi-localized. This also results from an M5-brane in a C-field. In the case of a p-brane perturbed from extremality, the quasi-localized graviton is massive. For a braneworld arising from global AdS5, gravitons travel faster when further in the bulk, thereby apparently traversing distances faster than light. © SISSA/ISAS 2002.