Onset of Color Transparency in Protons at Jefferson Lab*

Color transparency (CT) is a unique prediction of Quantum Chromodynamics (QCD) where the final (and/or initial) state interactions of hadrons with the nuclear medium are suppressed for exclusive processes at high momentum transfers. \\[-0.3mm] \linebreak During the spring of 2018, the experiment E1206107 to measure the Proton Transparency was the first to run in Hall C at Jefferson Lab using the upgraded 12 GeV electron beam. Our experiment used the High Momentum Spectrometer (HMS) and new Super High Momentum Spectrometer (SHMS) in coincidence to measure $^{12}C(e,e'p)$ proton knockout to extract the proton nuclear transparency with additional $^1$H measurements to determine the elementary process, over the range $Q^2=8-14.2~(GeV/c)^2$. A rise in the proton transparency as a function of $Q^2$ is predicted to be a signature of the onset of CT. \\[-0.3mm] \linebreak This talk will summarize the results of the experiment and the status of ancillary analyses such as $1s/1p$ shell dependence on transparency. \\[-0.3mm]