Time-resolved photoelectron spectra of Br2 molecule in intense laser field

The time-dependent-wave-packet method has been applied to calculate the photoelectron spectra of Br2 molecule with zero time delay. Meanwhile, Br+ ion that mainly resulted from the dissociation of Br2 (C1Πu) can be seen in the photoelectron spectra of Br2 molecule. We presume that more Br atoms will be ionized later, as the dissociation is nearly complete. In addition, it is found that Br 2 + ( X 2 Σ g + ) has the largest increasing rate as the increase of the laser intensities.