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Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at $\sqrt{s}=$8 TeV with the ATLAS detector

The collaboration
Eur.Phys.J.C 75 (2015) 299, 2015.

Abstract (data abstract)
CERN-LHC. Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb$^{-1}$ of $\sqrt{s}=8$ TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with $p_T > 120$ GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between $E_T^{miss} > 150$ GeV and $E_T^{miss} > 700$ GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with large extra spatial dimensions, pair production of weakly interacting dark matter candidates, and production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presented.

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Data from Figure 2a

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Distributions of the measured transverse mass distribution of the identified muon in the $W\mu\nu$+jets control region for the inclusive SR1...

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Data from Figure 2b

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Measured $E_{T}^{miss}$ distribution in the $W\mu\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The latter...

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Data from Figure 2c

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Measured leading jet $p_{T}$ distribution in the $W\mu\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations....

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Data from Figure 2d

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Measured jet multiplicity distribution in the $W\mu\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The...

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Data from Figure 3a

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Measured dilepton invariant mass distribution in the $Z\mu\mu$+jets control region for the inclusive SR1 selection, compared to the background expectations....

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Data from Figure 3b

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Measured $E_{T}^{miss}$ distribution in the $Z\mu\mu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The latter...

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Data from Figure 3c

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Measured leading jet $p_{T}$ distribution in the $Z\mu\mu$+jets control region for the inclusive SR1 selection, compared to the background expectations....

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Data from Figure 3d

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Measured jet multiplicity distribution in the $Z\mu\mu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The...

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Data from Figure 4a

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Measured transverse mass distribution in the $We\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The...

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Data from Figure 4b

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Measured $E_{T}^{miss}$ distribution in the $We\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The latter...

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Data from Figure 4c

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Measured leading jet $p_{T}$ distribution in the $We\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations....

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Data from Figure 4d

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Measured jet multiplicity distribution in the $We\nu$+jets control region for the inclusive SR1 selection, compared to the background expectations. The...

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Data from Figure 5a

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Measured dilepton invariant mass distribution in the $Zee$+jets control region for the inclusive SR1 selection, compared to the background expectations....

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Data from Figure 5b

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Measured $E_{T}^{miss}$ distribution in the $Zee$+jets control region for the inclusive SR1 selection, compared to the background expectations. The latter...

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Data from Figure 5c

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Measured leading jet $p_{T}$ distribution in the $Zee$+jets control region for the inclusive SR1 selection, compared to the background expectations....

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Data from Figure 5d

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Measured jet multiplicity distribution in the $Zee$+jets control region for the inclusive SR1 selection, compared to the background expectations. The...

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Data from Figure 6a

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Measured distribution of the jet multiplicity for the SR1 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown...

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Data from Figure 6b

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Measured distribution of $E_{T}^{miss}$ for the SR1 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown as constrained...

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Data from Figure 6c

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Measured distribution of leading jet $p_{T}$ for the SR1 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown...

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Data from Figure 6d

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Measured distribution of the leading jet $p_{T}$ to $E_{T}^{miss}$ ratio for the SR1 selection compared to the SM expectations. The...

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Data from Figure 7a

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Measured distribution of the jet multiplicity for SR7 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown as...

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Data from Figure 7b

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Measured distribution of the jet multiplicity for SR7 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown as...

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Data from Figure 7c

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Measured distribution of the leading jet $p_T$ for SR7 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown...

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Data from Figure 7d

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Measured distribution of the leading jet $p_T$ for SR9 selection compared to the SM expectations. The $Z\nu\nu$+jets contribution is shown...

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Data from Figure 7e

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Measured distribution of the leading jet $p_T$ to $E_{T}^{miss}$ ratio for SR7 selection compared to the SM expectations. The $Z\nu\nu$+jets...

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Data from Figure 7f

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Measured distribution of the leading jet $p_T$ to $E_{T}^{miss}$ ratio for SR9 selection compared to the SM expectations. The $Z\nu\nu$+jets...

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Data from Figure 9

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Observed and expected 95$\%$ CL limit on the fundamental Planck scale in $4+n$ dimensions, $M_D$, as a function of the...

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Data from Fig 10a

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...

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Data from Fig 10b

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...

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Data from Fig 10c

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...

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Data from Fig 10d

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...

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Data from Fig 10e

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...

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Data from Fig 10f

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...

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Data from Fig 11a

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Observed 95% CL limits on the suppression scale M* as a function of the mediator mass Mmed, assuming a Z'-like...

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Data from Fig 11b

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Observed 95% CL upper limits on the product of couplings of the simplified model vertex in the plane of mediator...

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Data from Fig 12a

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Upper limits at 90% C.L. on the WIMP-nucleon scattering cross section as a function of m_chi for spin-independent interactions, for...

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Data from Fig 12b

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Upper limits at 90% C.L. on the WIMP-nucleon scattering cross section as a function of m_chi for spin-dependent interactions, for...

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Data from Fig 12c

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Upper limits at 90% C.L. on the WIMP-nucleon annihilation cross section as a function of m_chi, for a coupling strength...

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Data from Fig 14

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95$\%$ CL lower limits on the gravitino mass $m_{\tilde{G}}$ as a function of the squark mass $m_{\tilde{q}}$ for degenerate squark/gluino...

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Data from Fig 15a

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95$\%$ CL lower limits on the gravitino mass $m_{\tilde{G}}$ as a function of the squark mass $m_{\tilde{q}}$ for non-degenerate squark/gluino...

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Data from Fig 15b

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95$\%$ CL lower limits on the gravitino mass $m_{\tilde{G}}$ as a function of the squark mass $m_{\tilde{q}}$ for non-degenerate squark/gluino...

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Data from Fig 15c

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95$\%$ CL lower limits on the gravitino mass $m_{\tilde{G}}$ as a function of the squark mass $m_{\tilde{q}}$ for non-degenerate squark/gluino...

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Data from Fig 15d

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95$\%$ CL lower limits on the gravitino mass $m_{\tilde{G}}$ as a function of the squark mass $m_{\tilde{q}}$ for non-degenerate squark/gluino...

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Data from Figure 16

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Observed and expected 95$\%$ CL upper limit on $\sigma \times {\rm{BR}}(H \to {\rm{invisible}})$ as a function of the Higgs boson...

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Data from Aux Fig 2

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Limits at 95% C.L. on the EFT suppression scale M* as a function of the WIMP mass m_chi, for the...