Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Little Higgs, Non-standard Higgs, No Higgs and All That   We give a brief review of recent developments in non-supersymmetric models
for electroweak symmetry breaking, including little Higgs, composite Higgs and
Higgsless theories. The new ideas such as extra dimensions, AdS/CFT
correspondence, dimension-deconstruction, and collective symmetry breaking
provide us new tools to construct new models. They also allow some old ideas to
be revived and implemented in these new models.

21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg