Examining the Identity of Yukawa with Gauge Couplings in Supersymmetric QCD at LHC

Abstract

The identity of the quark-squark-gluino Yukawa coupling with the corresponding quark-quark-gluon QCD coupling in supersymmetric theories can be examined experimentally at the Large Hadron Collider (LHC). Extending earlier investigations of like-sign di-lepton final states, we include jets in the analysis of the minimal supersymmetric standard model, adding squark-gluino and gluino-pair production to squark-pair production. Moreover we expand the method towards model-independent analyses which cover more general scenarios. In all cases, squark decays to light charginos and neutralinos persist to play a dominant role.

arXiv comment16 pp; v2: branching ratios and event rates adjusted, due to an error in the implementation of the SUSY Les Houches Accord in Pythia (corrected meanwhile), conclusions unchanged

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• Supersymmetric Monojets at the Large Hadron Collider
• Gluino Polarization at the LHC
• Distinguishing spins in decay chains with photons at the Large Hadron Collider
• Same-Sign Charginos and Majorana Neutralinos at the LHC
• Rapidity Gap Events in Squark Pair Production at the LHC
• Measuring Top Squark Interactions With The Standard Model Through Associated Production
• Squarks and gluinos at a TeV e+e- collider: Testing the identity of Yukawa and gauge couplings in SUSY-QCD
• Complementarity of the CERN Large Hadron Collider and the $e^{+}{e}^{-}$ International Linear Collider