Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The APEX/EPOS Quandary: the Way Out via Low Energy Studies   A scorecard summary of the various data of the ``Sharp Lepton Problem'' is
presented. The present situation, in which APEX reports ``...no evidence for
sharp pairs...'' even as their data exhibits a sharp pair excess near 800 keV,
is discussed. Two kinds of low energy experiments utilizing non-heavy ion
processes are suggested as means to break the impasse arising from the
ambiguity of the present heavy ion data.

22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
2
The categories of this paper are: math