Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modelling the effect of nuclear motion on the attosecond time-resolved
  photoelectron spectra of ethylene   Using time dependent density functional theory (TDDFT) we examine the energy,
angular and time-resolved photoelectron spectra (TRPES) of ethylene in a
pump-probe setup. To simulate TRPES we expose ethylene to an ultraviolet (UV)
femtosecond pump pulse, followed by a time delayed extreme ultraviolet (XUV)
probe pulse. Studying the photoemission spectra as a function of this delay
provides us direct access to the dynamic evolution of the molecule's electronic
levels. Further, by including the nuclei's motion, we provide direct chemical
insight into the chemical reactivity of ethylene. These results show how
angular and energy resolved TRPES could be used to directly probe electron and
nucleus dynamics in molecules.

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The categories of this paper are: eess
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc