Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semi-inclusive jets recoiling from $\gamma_{dir}$ and $\pi^{0}$ triggers
  in central Au+Au collisions at $\sqrt {s_{\rm NN}}$ = 200 GeV in STAR   We report the first measurement of fully corrected semi-inclusive charged
recoil jets for both direct-photon ($\gamma_{dir}$) and $\pi^{0}$ triggers,
within two trigger transverse energy ranges between 9 GeV and 15 GeV, in
central Au+Au collisions at $\sqrt {s_{\rm NN}}$ = 200 GeV using data with an
integrated luminosity of 13 $\rm nb^{-1}$ collected by the STAR experiment. A
comparison between $\pi^{0}$-triggered recoil jets in p+p collisions and PYTHIA
is discussed. A comparison is also presented between the suppression of
$\gamma_{dir}$- and $\pi^{0}$-triggered recoil jets in central Au+Au collisions
with respect to their corresponding PYTHIA references. A strong and similar
level of suppression is observed in recoil-jet yields as a function of jet
transverse momentum for $\gamma_{dir}$+jet and $\pi^{0}$+jet.

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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
16
The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: dg-ga
3
The categories of this paper are: physics
6
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: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci