Can we distinguish between h^{SM} and h^0 in split supersymmetry?

Abstract

We investigate the possibility to distinguish between the Standard Model Higgs boson and the lightest Higgs boson in Split Supersymmetry. We point out that the best way to distinguish between these two Higgs bosons is through the decay into two photons. It is shown that there are large differences of several percent between the predictions for Γ(h\toγγ) in the two models, making possible the discrimination at future photon-photon colliders. Once the charginos are discovered at the next generation of collider experiments, the well defined predictions for the Higgs decay into two photons will become a cross check to identify the light Higgs boson in Split Supersymmetry.

8 pages, 3 Figures, typos fixed, version published in J.Phys. G31 (2005) 563-569

References in corpus (4)

• Signatures of long-lived gluinos in split supersymmetry
• Dark Matter in the Finely Tuned Minimal Supersymmetric Standard Model
• Locally Localized Gravity and Geometric Transitions
• Chargino Pair Production at Linear Collider and Split Supersymmetry

Cited by in corpus (19)

• Light Stau Phenomenology and the Higgs γγRate
• The MSSM with heavy scalars
• Large D-terms, hierarchical soft spectra and moduli stabilisation
• Natural SUSY Predicts: Higgs Couplings
• Light Stops, Light Staus and the 125 GeV Higgs
• Vacuum Stability Constraints on the Enhancement of the Higgs to Diphoton Rate in the MSSM
• Split Supersymmetry from Anomalous U(1)
• Implications of light charginos for Higgs observables, LHC searches and dark matter
• Light Stop Mass Limits from Higgs Rate Measurements in the MSSM: Is MSSM Electroweak Baryogenesis Still Alive After All?
• Anatomizing Exotic Production of the Higgs Boson
• Supersymmetry for Fermion Masses
• Structure of split supersymmetry and simple models
• Tachyonic Squarks in Split Supersymmetry
• Hunting long-lived gluinos at the Pierre Auger Observatory
• Distinguishing split supersymmetry in Higgs signals at the Large Hadron Collider
• Vacuum Stability in Split Susy and Little Higgs Models
• Split Supersymmetry in Unified Models
• Radiative Neutralino Decay in Split Supersymmetry
• Deciphering the MSSM Higgs Mass at Future Hadron Colliders