Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hadronic light-by-light scattering in the anomalous magnetic moment of
  the muon   Hadronic light-by-light scattering in the anomalous magnetic moment of the
muon $a_\mu$ is one of two hadronic effects limiting the precision of the
Standard Model prediction for this precision observable, and hence the
new-physics discovery potential of direct experimental determinations of
$a_\mu$. In this contribution, we report on recent progress in the calculation
of this effect achieved both via dispersive and lattice QCD methods.

34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph