Search for new phenomena in final states with photons, jets and missing transverse momentum in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector

The ATLAS collaboration
JHEP 07 (2023) 021, 2023.

Abstract (data abstract)
A search for new phenomena has been performed in final states with at least one isolated high-momentum photon, jets and missing transverse momentum in proton--proton collisions at a centre-of-mass energy of 13~TeV. The data, collected by the ATLAS experiment at the CERN LHC, correspond to an integrated luminosity of $139~\mathrm{fb}^{-1}$. The experimental results are interpreted in a supersymmetric model in which pair-produced gluinos decay into neutralinos, which in turn decay into a gravitino, at least one photon, and jets.No significant deviations from the predictions of the Standard Model are observed. Upper limits are set on the visible cross section due to physics beyond the Standard Model, and lower limits are set on the masses of the gluinos and neutralinos, all at 95\% confidence level.

  • Figure 2

    Data from Figure 2

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    The observed and expected (post-fit) yields in the control and validation regions. The lower panel shows the difference in standard...

  • Distribution 1

    Data from Figure 3a

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    Observed (points with error bars) and expected background (solid histograms) distributions for $E_{T}^{miss}$ in the signal region (a) SRL, (b)...

  • Distribution 2

    Data from Figure 3b

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    Observed (points with error bars) and expected background (solid histograms) distributions for $E_{T}^{miss}$ in the signal region (a) SRL, (b)...

  • Distribution 3

    Data from Figure 3c

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    Observed (points with error bars) and expected background (solid histograms) distributions for $E_{T}^{miss}$ in the signal region (a) SRL, (b)...

  • Best SR 1

    Data from FigAux. 3a

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    Observed and expected exclusion limit in the gluino-neutralino mass plane at 95% CL combined using the signal region with the...

  • Best SR 2

    Data from FigAux. 3b

    10.17182/hepdata.115570.v1/t6

    Observed and expected exclusion limit in the gluino-neutralino mass plane at 95% CL combined using the signal region with the...

  • Acceptance 1

    Data from FigAux. 1a

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    Acceptance (left) and efficiency (right) for the $\gamma/Z$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Efficiency 1

    Data from FigAux. 1b

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    Acceptance (left) and efficiency (right) for the $\gamma/Z$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Acceptance 2

    Data from Figure FigAux. 1c

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    Acceptance (left) and efficiency (right) for the $\gamma/Z$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Efficiency 2

    Data from FigAux. 1d

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    Acceptance (left) and efficiency (right) for the $\gamma/Z$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Acceptance 3

    Data from FigAux. 1e

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    Acceptance (left) and efficiency (right) for the $\gamma/Z$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Efficiency 3

    Data from FigAux. 1f

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    Acceptance (left) and efficiency (right) for the $\gamma/Z$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Acceptance 4

    Data from FigAux. 2a

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    Acceptance (left) and efficiency (right) for the $\gamma/h$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Efficiency 4

    Data from FigAux. 2b

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    Acceptance (left) and efficiency (right) for the $\gamma/h$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Acceptance 5

    Data from FigAux. 2c

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    Acceptance (left) and efficiency (right) for the $\gamma/h$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Efficiency 5

    Data from FigAux. 2d

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    Acceptance (left) and efficiency (right) for the $\gamma/h$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Acceptance 6

    Data from FigAux. 2e

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    Acceptance (left) and efficiency (right) for the $\gamma/h$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Efficiency 6

    Data from FigAux. 2f

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    Acceptance (left) and efficiency (right) for the $\gamma/h$ model signal grid for SRL (top), SRM (middle) and SRH (bottom).

  • Cutflow 1

    Data from Table Aux. 5

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    Cutflow for the SRL selection, for two relevant signal points for both $\gamma/Z$ and $\gamma/h$ models, where the gluinos have...

  • Cutflow 2

    Data from Table Aux. 6

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    Cutflow for the SRM selection, for two relevant signal points for both $\gamma/Z$ and $\gamma/h$ models, where the gluinos have...

  • Cutflow 3

    Data from Table Aux. 7

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    Cutflow for the SRH selection, for two relevant signal points for both $\gamma/Z$ and $\gamma/h$ models, where the gluinos have...

  • Observed limit for gZ model

    Data from Figure 4a (observed limit)

    10.17182/hepdata.115570.v1/t22

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Observed limit up 1 sigma for gZ model

    Data from Figure 4a (observed limit up 1 $\sigma$)

    10.17182/hepdata.115570.v1/t23

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Observed limit down 1 sigma for gZ model

    Data from Figure 4a (observed limit down 1 $\sigma$)

    10.17182/hepdata.115570.v1/t24

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Expected limit for gZ model

    Data from Figure 4a (expected limit)

    10.17182/hepdata.115570.v1/t25

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Expected limit up 1 sigma for gZ model

    Data from Figure 4a (expected limit up 1 $\sigma$)

    10.17182/hepdata.115570.v1/t26

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Expected limit down 1 sigma for gZ model

    Data from Figure 4a (expected limit down 1 $\sigma$)

    10.17182/hepdata.115570.v1/t27

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Observed limit for gH model

    Data from Figure 4b (observed limit)

    10.17182/hepdata.115570.v1/t28

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Observed limit up 1 sigma for gH model

    Data from Figure 4b (observed limit up 1 $\sigma$)

    10.17182/hepdata.115570.v1/t29

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Observed limit down 1 sigma for gH model

    Data from Figure 4b (observed limit down 1 $\sigma$)

    10.17182/hepdata.115570.v1/t30

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Expected limit for gH model

    Data from Figure 4b (expected limit)

    10.17182/hepdata.115570.v1/t31

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Expected limit up 1 sigma for gH model

    Data from Figure 4b (expected limit up 1 $\sigma$)

    10.17182/hepdata.115570.v1/t32

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

  • Expected limit down 1 sigma for gH model

    Data from Figure 4b (expected limit down 1 $\sigma$)

    10.17182/hepdata.115570.v1/t33

    Observed and expected exclusion limits in the gluino–neutralino mass plane at 95% CL for the full Run-2 dataset corresponding to...

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