Using Tau Polarization as a Distinctive SUGRA Signature at LHC

Details Using Tau Polarization as a Distinctive SUGRA Signature at LHC Using Tau Polarization as a Distinctive SUGRA Signature at LHC

2002-05-02

arxiv.org/abs/hep-ph/0205015v2

Phys.Lett.B541:356-361,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 figures. Minor changes and one reference added. Version to be published in PLB. Reprot: TIFR/TH/02-13

Scientific paper

10.1016/S0370-2693(02)02269-4

In the minimal SUGRA model the lighter tau slepton is expected to be the second lightest superparticle over a large parameter range at large $\tan\beta$. Consequently one expects a viable SUGRA signal at LHC in the tau lepton channel coming from the decay of these tau sleptons. The model predicts the polarization of this tau lepton to be +1 to a very good accuracy. We show how this prediction can be tested by looking at the momentum fraction of the tau-jet, carried by the charged prong, in its 1-prong hadronic decay channel.

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