Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Leptonic Photon and Light Element Abundancies   In the framework of a model, in which a single leptonic photon $\gamma_l$ has
the same coupling to the doublets $\mu\nu_{\mu}$ and
$\bar{\tau}\bar{\nu}_{\tau}$, there is no cosmological bound on the strength of
this coupling.

19
The categories of this paper are: eess
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics