Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CPT and CP, an entangled couple   Even though it is undoubtedly very appealing to interpret the latest T2K
results as evidence of CP violation, this claim assumes CPT conservation in the
neutrino sector to an extent that has not been tested yet. As we will show, T2K
results are not robust against a CPT-violating explanation. On the contrary, a
CPT-violating CP-conserving scenario is in perfect agreement with current
neutrino oscillation data. Therefore, to elucidate whether T2K results imply CP
or CPT violation is of utter importance. We show that, even after combining
with data from NO$\nu$A and from reactor experiments, no claims about CP
violation can be made. Finally, we update the bounds on CPT violation in the
neutrino sector.

23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin