Investigating Higgs self-interaction through di-Higgs plus jet production at a 100 TeV hadron collider

The Higgs self-coupling measurement is quite essential for determining the shape of the Higgs potential and nature of the Higgs boson. We propose the di-Higgs plus jet final states at 100 TeV hadron colliders to increase the discovery sensitivity of the Higgs self-coupling at the low invariant mass region. With detector-level collider simulation, we find negative Higgs self-coupling would be disfavored beyond 2 confidence level, and the allowed region of the Higgs self-coupling is 0. 5, 1. 7 with this channel only.