Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kinetic and mass mixing with three abelian groups   We present the possible mixing effects associated with the low-energy limit
of a Standard-Model extension by two abelian gauge groups U(1)_1 x U(1)_2. We
derive general formulae and approximate expressions that connect the gauge
eigenstates to the mass eigenstates. Applications using the well-studied groups
U(1)_B, U(1)_(B-L), U(1)_(L_alpha - L_beta) (L_alpha being lepton flavor
numbers), and U(1)_DM (a symmetry acting only on the dark matter sector) are
discussed briefly.

22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph