Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CP violation and gravity as the weakest force   We argue that CP violation has rather dramatic impact on the "gravity as the
weakest force" conjecture. Namely we find that new ultraviolet scale must be
$\Lambda \lesssim \theta g^3 M_P$, where $\theta$ is an effective parameter
describing CP violation and $g$ is the gauge coupling constant. The bound
implies that CP-conserving limit is discontinuous, and possibly indicates that
the class of effective theories with strict CP conservation is inconsistent
with a fundamental theory incorporating quantum gravity. At the same time, the
mass hierarchy problem can be explained due to the smallness of the CP
violation, $\theta \sim 10^{-15}$ or so.

13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
1
The categories of this paper are: cs