Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunneling of Massive/Massless Bosons From the Apparent Horizon of FRW
  Universe   In this article we investigate the Hawking radiation of vector particles from
the apparent horizon of a Friedmann-Robertson-Walker (FRW) universe in the
framework of quantum tunneling method. Furthermore we use Proca equation, a
relativistic wave equation for a massive/massless spin-1 particle (massless
$\gamma$ photons, weak massive $W^{\pm}$ and $Z^{0}$ bosons, strong massless
gluons and $\rho$ and $\omega$ mesons) together with a Painlev\'{e} spacetime
metric for the FRW universe. We solve the Proca equation via Hamilton-Jacobi
(HJ) equation and the WKB approximation method. We recover the same result for
the Hawking temperature associated with vector particles as in the case of
scalar and Dirac particles tunnelled from outside to the inside of the apparent
horizon in a FRW universe.

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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: stat