Prospects for HH measurements in the WW$\gamma\gamma$ and $\tau\tau\gamma\gamma$ final states in proton-proton collisions at $\sqrt{s}=14$ TeV at the High Luminosity-LHC

Prospects for nonresonant Higgs boson pair production measurements in the WW$\gamma\gamma$ and $\tau\tau\gamma\gamma$ final states in proton-proton collisions at a centre-of-mass energy of 14 TeV with the upgraded Phase-2 CMS detector at the High-Luminosity LHC (HL-LHC) are presented. The study is performed using generated events that passed DELPHES fast simulation of the CMS detector with an average of 200 proton-proton interactions per bunch crossing and an integrated luminosity of 3000 fb$^{-1}$.