Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: W and Z boson production in p-Pb collisions at $\sqrt{s_{\rm NN}}$ =
  5.02 TeV   The W and Z boson production was measured via the muonic decay channel in
proton-lead collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV at the Large Hadron
Collider with the ALICE detector. The measurement covers backward ($-4.46 <
y_{\rm cms} < -2.96$) and forward ($2.03 < y_{\rm cms} < 3.53$) rapidity
regions, corresponding to Pb-going and p-going directions, respectively. The
Z-boson production cross section, with dimuon invariant mass of
$60<m_{\mu\mu}<120$ GeV/$c^2$ and muon transverse momentum ($p_{\rm T}^\mu$)
larger than 20 GeV/$c$, is measured. The production cross section and charge
asymmetry of muons from W-boson decays with $p_{\rm T}^\mu>10$ GeV/$c$ are
determined. The results are compared to theoretical calculations both with and
without including the nuclear modification of the parton distribution
functions. The W-boson production is also studied as a function of the
collision centrality: the cross section of muons from W-boson decays is found
to scale with the average number of binary nucleon-nucleon collisions within
uncertainties.

12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs