Light by light scattering at a low energy $e^+e^-$ collider -or- What to do while waiting for that rare kaon decay event

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43075Two photon processes are a wonderful by-product of an $e^+e^-$ collider at any energy. Two photon reactions probe the very structure of matter. A machine operating below 2 GeV has the potential to reveal the Higgs sector of the strong interaction -- the scalars with vacuum quantum numbers that reflect dynamical mass generation from the breakdown of chiral symmetry. One of the many $e^+e^-$ machines around the globe must have a dedicated $γγ$ facility.Invited talk at the Workshop on e+e- in the 1-2 GeV range, Alghero, Italy, September 2003 (eConf C0309101)High Energy Physics - PhenomenologyLight by light scattering at a low energy $e^+e^-$ collider -or- What to do while waiting for that rare kaon decay eventtext