High Energy Physics Seminars
Title: Searching TeV-scale gravity at the Large Hadron Collider
by Siva Subramania Halasya ((University of Alberta, Canada))
Thursday, November 29, 2012
from
to
(Asia/Kolkata)
at Colaba Campus ( AG 80 )
at Colaba Campus ( AG 80 )
TIFR
AG 80
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. |