Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Momentum-space imaging of {\sigma}-orbitals for chemical analysis   Tracing the modifications of molecules in surface chemical reactions benefits
from the possibility to image their orbitals. While delocalized frontier
orbitals with {\pi}-character are imaged routinely with photoemission orbital
tomography, they are not always sensitive to local chemical modifications,
particularly the making and breaking of bonds at the molecular periphery. For
such bonds, {\sigma}-orbitals would be far more revealing. Here, we show that
these orbitals can indeed be imaged in a remarkably broad energy range, and
that the plane wave approximation, an important ingredient of photoemission
orbital tomography, is also well fulfilled for these orbitals. This makes
photoemission orbital tomography a unique tool for the detailed analysis of
surface chemical reactions. We demonstrate this by identifying the reaction
product of a dehalogenation and cyclodehydrogenation reaction.

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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
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The categories of this paper are: cs
10
The categories of this paper are: q-bio
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The categories of this paper are: math
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg