| Description |
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.
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