Title: Searching TeV-scale gravity at the Large Hadron Collider

by Siva Subramania Halasya ((University of Alberta, Canada))

Thursday 29 Nov 2012, 11:30 → 12:30 Asia/Kolkata

AG 80 (Colaba Campus)

Understanding quantum gravity is one of the main goals of particle physics. The big hierarchy problem due to the relative weakness of gravity (represented by the fundamental Planck scale, MPl ~ 1016 TeV) compared to the fundamental electroweak scale (~ 1 TeV) has been a roadblock in this direction. Several paradigms, such as - Arkani-Hamed, Dimopoulos, Dvali (ADD, 1998), Antoniadis+ADD (AADD, 1998) and a five dimensional model with a part of highly warped AdS5 space (RS, 1999), based on the realization of a (4 + D) dimensional world with D extra-dimensions, predict low scale gravity and brane worlds. These low- scale gravity models allow the existence of non-perturbative gravitational states such as black holes, string balls (in the context of weakly coupling string theory) and D-branes, which could be produced in collider physics experiments with center of mass energy sufficiently larger than the diminished Planck Scale (MD) predicted by the low-scale gravity models. The Large Hadron Collider (LHC), provides an ideal environment for probing such models. In this talk, I will cover the discovery reach of such models and the status of the ongoing research in this area by the different experiments at the LHC.