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The 3-Point Interactions and Partial Decay Widths of Kaluza-Klein Gravitons in the Randall-Sundrum Model

    https://doi.org/10.1142/9789814412322_0033Cited by:0 (Source: Crossref)
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    Abstract:

    We study decays of heavy Kaluza-Klein (KK) gravitons to lighter KK gravitons, caused by triple KK gravitons' interaction vertices in the Randall-Sundrum model setup. Large decay widths are expected in these decay modes thanks to the enhanced amplitudes coming from the scalar longitudinal polarization tensors of the daughter KK graviton particles. Performing the tree level computations, we find, however, the heavy KK graviton decay widths into lighter KK graviton particles are smaller than the corresponding decay widths into the standard model particles.