Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hunting for CP violation with untagged charm decays   We construct a CP-violating observable which does not require flavor or CP
tagging of the initial state. The proposed decay asymmetry could be measured at
both threshold and non-threshold charm physics experiments and provide better
sensitivity to small CP-violating parameters in charm decays.

3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
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The categories of this paper are: math
16
The categories of this paper are: stat
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th