Novel ideas for the high luminosity phase of the LHC

Without doubt, the High Luminosity Large Hadron Collider (HL-LHC) is one of the major projects in particle physics at the high energy frontier in the upcoming decades. Planned to come into operation mid-2027 it will substantially increase the amount of proton-proton collisions at 14 TeV delivered to the LHC experiments with a planned integrated luminosity of 3000 $$ for both ATLAS and CMS experiments, 50 $$ for LHCb, and 5 $$ for ALICE. The delivery of Pb-Pb and p-Pb collisions with integrated luminosities of 13  $$ and 50  $$ is foreseen, yielding an increase by a factor of up to twenty compared to the currently available data of Run-1 and Run-2.