Studies of measuring Higgs self-coupling with $HH\rightarrow b\bar b \gamma\gamma$ at the future hadron colliders

Understand

We present a feasibility study of observing $HH\rightarrow b\bar b\gamma\gamma$ at the future hadron colliders with $\sqrt{s}=$14, 33, and 100 TeV.

• The measured cross section then can be used to constrain the Higgs self-coupling directly in the standard model.
• Any deviation could be a sign of new physics.
• The signal and background events are estimated using Delphes 3.0.10 fast Monte Carlo simulation based on the ATLAS detector capabilities.