Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unlocking the Standard Model. I. 1 generation of quarks. Symmetries   A very specific two-Higgs-doublet extension of the Glashow-Salam-Weinberg
model for one generation of quarks is advocated for, in which the two doublets
are parity transformed of each other and both isomorphic to the Higgs doublet
of the Standard Model. The chiral group U(2)_L X U(2)_R gets broken down to
U(1) X U(1)_{em}. In there, the first diagonal U(1) is directly connected to
parity through the U(1)_LX U(1)_R algebra. Both chiral and weak symmetry
breaking can be accounted for, together with their relevant degrees of freedom.
The two Higgs doublets are demonstrated to be in one-to-one correspondence with
bilinear quark operators.

31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org