Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: HAWC J2227+610: a potential PeVatron candidate for the CTA in the
  northern hemisphere   Recent observations of the gamma-ray source HAWC J2227+610 by Tibet AS+MD and
LHAASO confirm the special interest of this source as a galactic PeVatron
candidate in the northern hemisphere. HAWC J2227+610 emits Very High Energy
(VHE) gamma-rays up to 500 TeV, from a region coincident with molecular clouds
and significantly displaced from the nearby pulsar J2229+6114. Even if this
morphology favours an hadronic origin, both leptonic or hadronic models can
describe the current VHE gamma-ray emission. The morphology of the source is
not well constrained by the present measurements and a better characterisation
would greatly help the understanding of the underlying particle acceleration
mechanisms. The Cherenkov Telescope Array (CTA) will be the future most
sensitive Imaging Atmospheric Cherenkov Telescope and, thanks to its
unprecedented angular resolution, could contribute to better constrain the
nature of this source. The present work investigates the potentiality of CTA to
study the morphology and the spectrum of HAWC J2227+610. For this aim, the
source is simulated assuming the hadronic model proposed by the Tibet AS+MD
collaboration, recently fitted on multi-wavelength data, and two spatial
templates associated to the source nearby molecular clouds. Different CTA
layouts and observation times are considered. A 3D map based analysis shows
that CTA is able to significantly detect the extension of the source and to
attribute higher detection significance to the simulated molecular cloud
template compared to the alternative one. CTA data does not allow to
disentangle the hadronic and the leptonic emission models. However, it permits
to correctly reproduce the simulated parent proton spectrum characterized by a
$\sim$ 500 TeV cutoff.

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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: funct-an