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Matter–gravity interaction in a multiply warped braneworld

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The role of a bulk graviton in predicting the signature of extra dimensions through collider-based experiments is explored in the context of a multiply warped spacetime. In particular it is shown that in a doubly warped braneworld model, the presence of the sixth dimension results in enhancement of concentration of graviton Kaluza–Klein (KK) modes compared to that obtained in the usual 5D Randall–Sundrum model. Also, the couplings of these massive graviton KK modes with the matter fields on the visible brane turn out to be appreciably larger than that in the corresponding 5D model. The significance of these results are discussed in the context of KK graviton search at the Large Hadron Collider (LHC).

Document Type: Research Article


Publication date: January 1, 2013


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