Distinguishing split supersymmetry in Higgs signals at the Large Hadron Collider

Gupta, Sudhir Kumar; Mukhopadhyaya, Biswarup; Rai, Santosh Kumar

Distinguishing split supersymmetry in Higgs signals at the Large Hadron Collider

Authors

Gupta, Sudhir Kumar

Mukhopadhyaya, Biswarup

Rai, Santosh Kumar

Description

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