Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of jet-medium interactions using jet shape observables in heavy
  ion collisions at LHC energies with JEWEL   Based on a pQCD inspired dynamical model of jet-medium interactions, Jewel,
we have studied possible modifications to inclusive jet yields and a set of jet
shape observables, namely, the fragmentation functions and radial momentum
distributions when jets propagate through a deconfined partonic medium created
in collisions of heavy nuclei at Large Hadron Collider (LHC) energies. Jets are
reconstructed with anti-k T algorithm in the pseudorapidity range $|\eta_{\rm
jet} | < 2.1$ for resolution parameter R= 0.2, 0.3 and 0.4. For background
subtraction, a Jewel-compatible 4-Momenta subtraction technique (4MomSub) have
been used. The modification of inclusive jet-yields in Pb-Pb collisions
relative to proton-proton interactions, quantified by $R^{\rm jet}_{AA}$, are
seen to be in reasonable agreement with ALICE, ATLAS and CMS data over a broad
transverse momentum range. Jewel is able to capture the qualitative features of
the modifications to the fragmentation functions and radial momentum
distributions in data but not always quantitatively. This quantitative
discrepancy may be related to the simplified treatment of recoil partons in the
background model and partly due to background subtraction procedure itself.
Nevertheless, observed modification of jet shape variables in Jewel
corroborates the fact that in-medium fragmentation is harder and more
collimated than the fragmentation in vacuum. We further observe that these
modifications depend on the transverse momentum of jets and it seems that
medium resolves the core structure of low momentum jets below 100 GeV/c at LHC
energies.

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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: cs
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-ex
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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th