Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An asymptotic decrease of (m_p/m_e) with cosmological time, from a
  decreasing, small effective vacuum expectation value moving from a potential
  maximum in the early universe   The empirical, possible small variation downward by about 10^-5, of the ratio
of the proton mass to the electron mass, over a characteristic time interval
estimated here to be about a billion years, is related to the decrease with
time of a small, effective vacuum expectation value for a Goldstone-like
pseudoscalar field which is present in the early universe, and is related to
the scalar inflaton field. The same vacuum expectation value controls the
magnitude of a very small, residual vacuum energy density today, which has also
slowly decreased. The present time variation is estimated to be near to a
definite limit, that is asymptotically approached as t->oo.

13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
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The categories of this paper are: eess
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin