Using Tau Polarization as a Distinctive SUGRA Signature at LHC

Abstract

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.

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

References in corpus (4)

• The Hadronic Tau Decay Signature of a Heavy Charged Higgs Boson at LHC
• Measurements in SUGRA Models with Large tan beta at LHC
• Supersymmetry Reach of the Tevatron via Trilepton, Like-Sign Dilepton and Dilepton plus Tau Jet Signatures
• The Reach of the CERN Large Hadron Collider for Gauge-Mediated Supersymmetry Breaking Models

Cited by in corpus (12)

• From the LHC to Future Colliders
• Analysis of CP Violation in Neutralino Decays to Tau Sleptons
• $\tau$ Polarization in SUSY Cascade Decays
• Using Tau Polarization to probe the Stau Co-annihilation Region of mSUGRA Model at LHC
• Using Tau Polarization to Discriminate between SUSY Models and Determine SUSY Parameters at ILC
• Dictionary of LHC Signatures
• Flavored Co-annihilations
• Enhanced Tau Lepton Signatures at LHC in Constrained Supersymmetric Seesaw
• Search for top squark pair production in a final state with at least one hadronically decaying tau lepton in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for top squark pair production in a final state with two tau leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Direct and Indirect Detection of Neutralino Dark Matter and Collider Signatures in an $SO(10)$ Model with Two Intermediate Scales
• The interplay between the charged Higgs and squark-gluino events at the LHC