title: Time-resolved photoelectron spectroscopy of wavepackets through a conical intersection in NO2.
abstract: We report the results of theoretical studies of the time-resolved femtosecond photoelectron spectroscopy of quantum wavepackets through the conical intersection between the first two (2)A' states of NO(2). The Hamiltonian explicitly includes the pump-pulse interaction, the nonadiabatic coupling due to the conical intersection between the neutral states, and the probe interaction between the neutral states and discretized photoelectron continua. Geometry- and energy-dependent photoionization matrix elements are explicitly incorporated in these studies. Photoelectron angular distributions are seen to provide a clearer picture of the ionization channels and underlying wavepacket dynamics around the conical intersection than energy-resolved spectra. Time-resolved photoelectron velocity map images are also presented.
authors.affiliation: Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, 153-8902 Tokyo, Japan.
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Arasaki
authors.forename: Kazuo
authors.initials: K
authors.lastname: Takatsuka
authors.forename: Kwanghsi
authors.initials: K
authors.lastname: Wang
authors.forename: Vincent
authors.initials: V
authors.lastname: McKoy