Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stochastic gravitational wave background from smoothed cosmic string
  loops   We do a complete calculation of the stochastic gravitational wave background
to be expected from cosmic strings. We start from a population of string loops
taken from simulations, smooth these by Lorentzian convolution as a model of
gravitational back reaction, calculate the average spectrum of gravitational
waves emitted by the string population at any given time, and propagate it
through a standard model cosmology to find the stochastic background today. We
take into account all known effects, including changes in the number of
cosmological relativistic degrees of freedom at early times and the possibility
that some energy is in rare bursts that we might never have observed.

30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph