Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytical relations for the bound state spectrum of gauge theories with
  a Brout-Englert-Higgs mechanism   We apply the method proposed by Fr\"ohlich, Morchio, and Strocchi to analyze
the bound state spectrum of various gauge theories with a Brout-Englert-Higgs
mechanism. These serve as building blocks for theories beyond the standard
model but also stress the exceptional role of the standard model weak group. We
will show how the Fr\"ohlich-Morchio-Strocchi mechanism relates gauge-invariant
bound state operators to invariant objects of the remaining unbroken gauge
group after gauge fixing. In particular, this provides a strict gauge-invariant
formulation of the latter in terms of the original gauge symmetry without using
the terminology of spontaneous gauge symmetry breaking. We also demonstrate
that the Fr\"ohlich-Morchio-Strocchi approach allows us to put new constraints
on theories beyond the standard model by pure field-theoretical considerations.
Particularly the conventional construction of grand unified theories has to be
rethought.

4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg