Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for supersymmetry in events with soft leptons, low jet
  multiplicity, and missing transverse momentum in proton-proton collisions at
  sqrt(s) = 8 TeV   Results are presented from a search for supersymmetric particles in scenarios
with a compressed mass spectrum. The data sample corresponds to 19.7 inverse
femtobarns of proton-proton collisions recorded by the CMS experiment at
sqrt(s) = 8 TeV. The search targets top squark pair production in scenarios
with mass differences Delta m = m(top squark) - m(neutralino) below the W-boson
mass and with top-squark decays in the four-body mode (top squark to b l nu
neutralino), where the neutralino is assumed to be the lightest supersymmetric
particle (LSP). The signature includes a high transverse momentum (pt) jet
associated with initial-state radiation, one or two low-pt leptons, and
significant missing transverse energy. The event yields observed in data are
consistent with the expected background contributions from standard model
processes. Limits are set on the cross section for top squark pair production
as a function of the top squark and LSP masses. Assuming a 100% branching
fraction for the four-body decay mode, top-squark masses below 316 GeV are
excluded for Delta m = 25 GeV at 95% CL. The dilepton data are also interpreted
under the assumption of chargino-neutralino production, with subsequent decays
to sleptons or sneutrinos. Assuming a difference between the common lightest
chargino/next lightest neutralino mass and the LSP mass of 20 GeV and a
tau-enriched decay scenario, masses in the range m(chargino) < 307 GeV are
excluded at 95% CL.

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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: eess