Distinguishing split supersymmetry in Higgs signals at the Large Hadron   Collider
  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. 
Sudhir Kumar Gupta, Biswarup Mukhopadhyaya and Santosh Kumar Rai   (Harish-Chandra Research Institute)