Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for new physics in events with two soft oppositely charged
  leptons and missing transverse momentum in proton-proton collisions at
  $\sqrt{s}=$ 13 TeV   A search is presented for new physics in events with two low-momentum,
oppositely charged leptons (electrons or muons) and missing transverse momentum
in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data
collected using the CMS detector at the LHC correspond to an integrated
luminosity of 35.9 fb$^{-1}$. The observed event yields are consistent with the
expectations from the standard model. The results are interpreted in terms of
pair production of charginos and neutralinos ($\widetilde{\chi}^\pm_1$ and
$\widetilde{\chi}^0_2$) with nearly degenerate masses, as expected in natural
supersymmetry models with light higgsinos, as well as in terms of the pair
production of top squarks ($\widetilde{\mathrm{t}}$), when the lightest
neutralino and the top squark have similar masses. At 95% confidence level,
wino-like $\widetilde{\chi}^\pm_1$/$\widetilde{\chi}^0_2$ masses are excluded
up to 230 GeV for a mass difference of 20 GeV relative to the lightest
neutralino. In the higgsino-like model, masses are excluded up to 168 GeV for
the same mass difference. For $\widetilde{\mathrm{t}}$ pair production, top
squark masses up to 450 GeV are excluded for a mass difference of 40 GeV
relative to the lightest neutralino.

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The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
1
The categories of this paper are: cs