Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution

During the 2015-2018 data-taking period, the Large Hadron Collider delivered proton-proton bunch crossings at a centre-of-mass energy of 13TeV to the ATLAS experiment at a rate of roughly 30 MHz, where each bunch crossing contained an average of 34 indepe