| dc.description |
We study the effect of brane fluctuation on the indirect signals of high energy colliders. Brane fluctuation could act as a regulator of divergent expression of infinite tower of Kaluza-Klein graviton effects. The phenomenological parameter λ, introduced by Hewett, is shown to be determined in our setting, and its dramatic behaviors depending on the D = 4+δ dimensional gravitation scale M<sub>D</sub>, `softening parameter' Δ, and (s)<sup>1/2</sup> of collider are presented. The present exclusion bounds from the processes e<sup>+</sup>e<sup>−</sup>→γγ and pp̅→e<sup>+</sup>e<sup>−</sup>,γγ(γ) are considered within the parameter space (M<sub>D</sub>,Δ) with respect to the number of extra dimensions. |
