Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CP-violating Phenomena in an $ SU(2)_L \times SU(2)_R \times U(1)_{B-L}
  \times SU(3)_H^{VL}$ Horizontal Symmetric Model   We consider an $SU(2)_L \times SU(2)_R \times U(1)_{B-L} \times SU(3)_H^{VL}$
gauge model with natural flavour conservation in the Higgs sector, in which
CP-violation occurs due to the horizontal interactions only. We calculate the
CP-violating observables $\epsilon$ and $\epsilon'$ of the neutral kaon sector
and $d_n$, the electric dipole moment of the neutron. The regions of the
parameter space which yield a value of $\epsilon$ that is in agreement with the
experiment, lead to predictions for $\epsilon'$ and $d_n$ which are at least
five orders of magnitude smaller than the current experimental upper bounds.

21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con