Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phenomenology of SUGRA Extensions of the Starobisnky Model   We analyze BI model in a complete form and compare the predictions with that
of Starobinsky model. Under the parameter constraints in Planck 2018, we find
that the dynamics of the whole inflation process described by BI and
Starobinsky models are nearly the same, even though there are some differences
in the regions out of inflation. We also find the scales of parameters in BI
model and initial inflaton values required to implement inflation. The changes
of $\left( {n}_{s}, r \right)$ fingerprints of BI model and that of evolutions
of inflaton field due to the variations of relevant parameters are also
investigated.

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The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: q-bio
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
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The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph