Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A realistic formulation of approximate CP   CP violation in the SM is naturally implemented as a small imaginary
perturbation to real Yukawa couplings. For example, a large CP asymmetry in B_d
decays can arise if the imaginary parts of quark mass matrices are of order
10^(-3)m_t,b or smaller. Applying the same principle of ``additive CP
violation'' to soft SUSY-breaking terms, the electric dipole moments of the
neutron and mercury atom are predicted near current experimental limits; for
nonuniversal A-terms, EDM bounds can be satisfied given certain flavour
structures. The proposal is conveniently formulated in a democratic basis, with
Yukawas and soft terms of the form const. x (1+eps+i zeta) where eps<<1,
zeta<~10^(-3), motivated by approximate permutation x CP symmetry.

6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con