Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $\chi$EFT studies of few-nucleon systems: a status report   A status report on $\chi$EFT studies of few-nucleon electroweak structure and
dynamics is provided, including electromagnetic form factors of few-nucleon
systems, the $pp$ weak fusion and muon weak captures on deuteron and $^3$He,
and a number of parity-violating processes induced by hadronic weak
interactions.

19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys