Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beating the Standard Model   This report, adapted from my talk at the 1998 Ettore Majorana Subnuclear
School at Erice, proffers speculative explanations of the strong CP problem and
the existence of cosmic rays beyond the GZK bound. It is based on works done
with Sidney Coleman and Howard Georgi.

23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat