Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 2HDM in terms of observable quantities   We express explicitly all parameters of the most general Two-Higgs-Doublet
Model (2HDM) scalar potential via measurable ({\it basic}) quantities plus
additional parameters specifying the basis choice. The full set of basic
parameters is partitioned into two groups: the first group can be obtained by
measuring all the scalar boson masses and the couplings of two neutrals to
gauge bosons.The second group, in contrast, does not affect the masses and
Higgs-gauge couplings, and can only be determined from processes involving
Higgs self-interactions. These basic quantities can be treated as free
parameters of model limited by general enough conditions.
  Apart from this construction {\em per se}, we also obtain three by-products:
new sum rules for relative couplings, a clear possibility of the coexistence of
relatively light Higgses with the strong interaction in the Higgs sector, and a
restriction on the triple-Higgs coupling in the SM-like regime (the latter - in
a separate paper).

12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
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The categories of this paper are: stat
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom