Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transverse single-spin asymmetry in the low-virtuality leptoproduction
  of open charm as a probe of the gluon Sivers function   We study the low-virtuality inclusive leptoproduction of open charm,
$p^\uparrow l\rightarrow D^0+X$ as a probe of the gluon Sivers function. We
perform the analysis in a generalised parton model framework. At leading order,
this process is sensitive only to the gluon content of the proton. Hence any
detection of a transverse single-spin asymmetry in this process would be clear
indication of a non-zero gluon Sivers function (GSF). Considering COMPASS and a
future Electron-Ion Collider (EIC), we present predictions for asymmetry using
fits for the GSF available in literature. Predictions for peak asymmetry values
lie in the range of 0.8\% to 13\%. We also present estimates of the upper bound
on the asymmetry as obtained with a maximal gluon Sivers function. Further, for
the case of the Electron-Ion Collider, we evaluate the asymmetry in the muons
decaying from the $D$-meson and find that the asymmetry is well preserved in
the kinematics of the muons. Peak values of the muon asymmetry are close to
those obtained for the $D$-meson and lie in the range $0.75\%$ to 11\%.

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The categories of this paper are: astro-ph
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The categories of this paper are: physics
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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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: nucl-ex
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The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
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The categories of this paper are: comp-gas
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The categories of this paper are: nlin