Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nuclear Target Cross Section Ratios at MINERvA   Measurements of $\nu_{\mu}$ inclusive charged-current cross section ratios on
carbon, iron, and lead relative to scintillator are presented. Data for the
analysis were collected by the fine-grained MINERvA detector in the NuMI
beamline at Fermilab. This is the first direct measurement of nuclear
dependence in neutrino scattering. The ratios show a depletion at low Bjorken
$x$ and enhancement at large $x$, both of which increase with the nucleon
number of the target. The data exhibit trends not found in GENIE, a standard
neutrino-nucleus event generator, or alternative models of nuclear modification
to inelastic structure functions.

28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: bayes-an
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat