Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of electrons from semileptonic heavy-flavor hadron decays in
  pp collisions at $\sqrt{s} = 2.76$ TeV   The $p_{\rm T}$-differential production cross section of electrons from
semileptonic decays of heavy-flavor hadrons has been measured at mid-rapidity
in proton-proton collisions at $\sqrt{s} = 2.76$ TeV in the transverse momentum
range 0.5 < $p_{\rm T}$ < 12 GeV/$c$ with the ALICE detector at the LHC. The
analysis was performed using minimum bias events and events triggered by the
electromagnetic calorimeter. Predictions from perturbative QCD calculations
agree with the data within the theoretical and experimental uncertainties.

24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin