Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-02-18
Phys.Lett.B588:90-98,2004
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 11 figures; v2: 3 references added, to appear in Physics Letters B
Scientific paper
10.1016/j.physletb.2004.03.016
We consider supersymmetric theories where the gravitino is the lightest superparticle (LSP). Assuming that the long-lived next-to-lightest superparticle (NSP) is a charged slepton, we investigate two complementary ways to prove the existence of supergravity in nature. The first is based on the NSP lifetime which in supergravity depends only on the Planck scale and the NSP and gravitino masses. With the gravitino mass inferred from kinematics, the measurement of the NSP lifetime will test an unequivocal prediction of supergravity. The second way makes use of the 3-body NSP decay. The angular and energy distributions and the polarizations of the final state photon and lepton carry the information on the spin of the gravitino and on its couplings to matter and radiation.
Buchmüller Wilfried
Hamaguchi Koichi
Ratz Michael
Yanagida Tsutomu
No associations
LandOfFree
Supergravity at 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 Supergravity at Colliders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supergravity at Colliders will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-180862