Electron-Ion 3D momentum imaging of the dissociative single ionization of hydrogen molecules in the presence of a laser field*

We present updated results from our 2-color IR laser+synchrotron Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS) experiments on the dissociative single ionization of $H_2$. Light from beamline 10.0.1 ($17.9$, $18.34$ and $18.56eV$, $80ps$, $50meV$ resolution) at the Advanced Light Source was used to excite and ionize $H_2$ in the presence of pulsed laser field ($1030nm$, $12ps$, $5\times 10^{11} W/cm^{2}$). We refined the apparatus and collected an order of magnitude more data than our preliminary experiment at two specific laser delays: short (XUV+Laser overlapped) and long ($>200ps$ time offset). We present more evidence for the interplay of photoelectron retro-action with the strong laser field in the dissociation of $H_{2}^{+}$. We also present evidence for the signature of light induced conical intersections in the dissociation of the laser dressed hydrogen cations, as recently reported by Natan et. al. (PRL 116, 143004 (2016)).