Combined analysis of double Higgs production via gluon fusion at the HL-LHC in the effective field theory approach

Understand

We perform the combined analysis of the double Higgs production via gluon fusion in the $b\bar{b} \gamma\gamma$ and $b\bar{b}\tau^+\tau^-$ decay channels at the High-Luminosity LHC (HL-LHC).

• To validate our analysis, we reproduce the ATLAS result of the $b\bar{b} \gamma\gamma$ process including all contributions from fakes.
• For the $b\bar{b}\tau^+\tau^-$ decay channel, we perform the similar analysis to the CMS one.
• As an improvement, we also perform the multivariate analysis employing the boosted decision tree algorithm.