Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-11-07
Phys.Rev. D73 (2006) 075012
Physics
High Energy Physics
High Energy Physics - Phenomenology
Some clarifications added. Version published in PRD
Scientific paper
10.1103/PhysRevD.73.075012
We explore scenarios in which the graviton is not a fundamental degree of freedom at short distances but merely emerges as an effective degree of freedom at long distances. In general, the scale of such graviton `compositeness', Lambda_g, can only be probed by measuring gravitational forces at short distances, which becomes increasingly difficult and eventually impossible as the distance is reduced. Here, however, we point out that if supersymmetry is an underlying symmetry, the gravitino can be used as an alternative probe to place a limit on Lambda_g in a collider environment, by demonstrating that there is a model-independent relation, Lambda_g > m_{3/2}. In other words, the gravitino knows that gravity is standard at least down to its Compton wavelength, so this can also be viewed as a test of general relativity possible at very short distances. If composite gravity is found first at some Lambda_g, this would imply a model-independent upper bound on m_{3/2}.
No associations
LandOfFree
Probing Composite Gravity in Colliders does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probing Composite Gravity in Colliders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing Composite Gravity in Colliders will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-293694