Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SHiP: a new facility to search for long lived neutral particles and
  investigate the $\nu_\tau$ properties   SHIP is a new general purpose fixed target facility, whose Technical Proposal
has been recently reviewed by the CERN SPS Committee and by the CERN Research
Board. The two boards recommended that the experiment proceeds further to a
Comprehensive Design phase. A 400 GeV proton beam extracted from the SPS will
be dumped on a heavy target with the aim of integrating $2\times 10^{20}$
proton-target collisions (\textit{pot}) in 5 years. A dedicated detector, based
on a long vacuum tank followed by a spectrometer and particle identification
detectors, will allow to probe a variety of New Physics models with light
long-lived exotic particles and masses below $\mathcal{O}(10)$~GeV/$c^2$,
including Dark Photons, light scalars and pseudo-scalars, and Heavy Neutrinos.
The sensitivity to Heavy Neutrinos will allow for the first time to probe, in
the mass range between the $K$ and the $D$ meson mass, a coupling range for
which Baryogenesis and neutrino oscillations could also be explained. Another
dedicated detector will allow the study of neutrino cross-sections and angular
distributions. $\nu_\tau$ deep inelastic scattering cross sections will be
measured with a statistics 1000 times larger than currently available, with the
extraction of the so far never measured $F_4$ and $F_5$ structure functions,
and allow to perform charm physics studies with significantly improved
accuracy.

22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat