How photons sneak into searches for exotic heavy particles

When searching for exotic heavy particles at the LHC, physicists usually focus on gluon interactions. But for highly charged particles like leptoquarks, mixing in photons from a separate initial state can enhance production rates by up to 33%—comparable to precision QCD corrections. This overlooked QED contribution shifts jet patterns and angular distributions, systematically tightening experimental mass limits when properly accounted for.