Distinguishing split supersymmetry in Higgs signals at the Large Hadron Collider

Abstract

We examine the possibility of detecting signals of split supersymmetry in the loop-induced decay h --> gamma gamma of the Higgs boson at the Large Hadron Collider, where charginos, as surviving light fermions of the supersymmetric spectrum, can contribute in the loop. We perform a detailed study of uncertainties in various parameters involved in the analysis, and thus the net uncertainty in the standard model prediction of the rate. After a thorough scan of the parameter space, taking all constraints into account, we conclude that it will be very difficult to infer about split supersymmetry from Higgs signals alone.

arXiv comment22 pages, 14eps figures, LateX, Changes in the figures and minor modifications in the text. Final version to appear in Physical Review D

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• The MSSM with heavy scalars
• Non-universal gaugino masses: a signal-based analysis for the Large Hadron Collider
• Decays of $H^0/A^0$ in supersymmetric scenarios with heavy sfermions
• Slim SUSY
• Effects of Universal Extra Dimensions on Higgs signals at LHC
• Non-universal scalar masses: a signal-based analysis for the Large Hadron Collider
• Hunting long-lived gluinos at the Pierre Auger Observatory
• Radiative Neutralino Decay in Split Supersymmetry
• Indian Contributions to LHC Theory