Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Manipulating strong electromagnetic fields with the average transverse
  momentum of relativistic nuclear collisions   We show that an event-shape engineering based on the mean transverse momentum
of charged hadrons, $[p_t]$, provides an optimal handle on the strength of the
magnetic field created in central heavy-ion collisions at high energy. This is
established through quantitative evaluations of the correlation existing
between the event-by-event magnetic field produced by the spectator protons in
5.02 TeV Pb+Pb collisions and the event-by-event $[p_t]$ at a given collision
centrality. We argue that the event selection based on $[p_t]$ provides a
better handle on the magnetic field than the more traditional selection based
on the event ellipticities. Advantages brought by this new method for the
experimental search of the chiral magnetic effect are discussed.

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The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg