Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of Gravitational Waves and Scalar Perturbations in Inflation
  with Effective $\Lambda$-term and T/S Story   We argue that gravitational wave contribution to the cosmic microwave
background anisotropy at angular scale $\sim 10^0$ may exceed 50% for some
models of hybrid inflation producing standard cosmology with the density
perturbation slope $n \simeq 1$.

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The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th