cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.127896.v1/t5
title: "Figure003-c" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Fits to the $m_{\ell^+\ell^-\gamma}$ data distribution in the dijet-2 categories. In the upper panel, the red solid line shows the result of a signal-plus-background fit to the given category. The red dashed line shows the background component of the fit. The green and yellow bands represent the 68 and 95% CL uncertainties in the fit. Also plotted is the expected SM signal, scaled by a factor of 10. In the lower panel, the data minus the background component of the fit is shown.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t6
title: "Figure003-d" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Fits to the $m_{\ell^+\ell^-\gamma}$ data distribution in the dijet-3 categories. In the upper panel, the red solid line shows the result of a signal-plus-background fit to the given category. The red dashed line shows the background component of the fit. The green and yellow bands represent the 68 and 95% CL uncertainties in the fit. Also plotted is the expected SM signal, scaled by a factor of 10. In the lower panel, the data minus the background component of the fit is shown.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t7
title: "Figure004-a" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Fits to the $m_{\ell^+\ell^-\gamma}$ data distribution in the untagged 1 categories. In the upper panel, the red solid line shows the result of a signal-plus-background fit to the given category. The red dashed line shows the background component of the fit. The green and yellow bands represent the 68 and 95% CL uncertainties in the fit. Also plotted is the expected SM signal, scaled by a factor of 10. In the lower panel, the data minus the background component of the fit is shown.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t8
title: "Figure004-b" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Fits to the $m_{\ell^+\ell^-\gamma}$ data distribution in the untagged 2 categories. In the upper panel, the red solid line shows the result of a signal-plus-background fit to the given category. The red dashed line shows the background component of the fit. The green and yellow bands represent the 68 and 95% CL uncertainties in the fit. Also plotted is the expected SM signal, scaled by a factor of 10. In the lower panel, the data minus the background component of the fit is shown.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t1
title: "Figure 2a" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: The $\mathcal{D}_{\mathrm{VBF}}$ distributions for signal, simulated background, and data. The $\mathcal{D}_{\mathrm{VBF}}$ distribution includes only dijet-tagged events. The sum of contributions from all signal production mechanisms is shown by the blue line, while the contribution from only the VBF mechanism is shown by the red line. The uncertainty band incorporates all statistical and systematic uncertainties in the expected background. The dashed lines indicate the boundaries for dijet-tagged categories.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t10
title: "Figure004-d" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Fits to the $m_{\ell^+\ell^-\gamma}$ data distribution in the untagged 4 categories. In the upper panel, the red solid line shows the result of a signal-plus-background fit to the given category. The red dashed line shows the background component of the fit. The green and yellow bands represent the 68 and 95% CL uncertainties in the fit. Also plotted is the expected SM signal, scaled by a factor of 10. In the lower panel, the data minus the background component of the fit is shown.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t11
title: "Figure006" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Observed signal strength ($\mu$) for a SM Higgs boson at 125.38 GeV. The labels untagged combined,dijet combined and combined represent the results obtained from simultaneous fits of the untagged categories, dijet categories, and full set of categories, respectively. The black solid line shows $\mu=1$, and the red dashed line shows the best fit value $\hat{\mu}=2.4$ of all categories combined.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.17182/hepdata.127896.v1/t9
title: "Figure004-c" of "Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Fits to the $m_{\ell^+\ell^-\gamma}$ data distribution in the untagged 3 categories. In the upper panel, the red solid line shows the result of a signal-plus-background fit to the given category. The red dashed line shows the background component of the fit. The green and yellow bands represent the 68 and 95% CL uncertainties in the fit. Also plotted is the expected SM signal, scaled by a factor of 10. In the lower panel, the data minus the background component of the fit is shown.
description: Results are presented from a search for the Higgs boson decay $\mathrm{H}\to\mathrm{Z}\gamma$, where $\mathrm{Z}\to\ell^+\ell^-$ with $\ell=\mathrm{e}$ or $\mu$. The search is performed using a sample of proton-proton ($\mathrm{pp}$) collision data at a center-of-mass energy of $13~\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\mu$, defined as the product of the cross section and the branching fraction [$\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \llg invariant mass distributions in all categories and is found to be $\mu= 2.4\pm0.9$ for a Higgs boson mass of $125.38~\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\sigma(\mathrm{pp}\to\mathrm{H})\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)=0.21\pm0.08~\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\mathcal{B}(\mathrm{H}\to\mathrm{Z}\gamma)/\mathcal{B}(\mathrm{H}\to\gamma\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \pm 0.04$ at the 1.5 standard deviation level.
DOI: 10.25549/vercoutere-ouc110611521
title: House, radio-TV, and prison

description: Two-story house outlined in orange has two spindly plants in two red pots labeled "TV" in the second story and a fishbowl in the second story window. A male and female greet each other in the doorway under a light fixture. Three people are walking up a path to the front door. A red sun shines on the house. In the center of the picture is a square box labeled "Philco" with a picture tube with purple lines to a center tube with a light bulb. "Radio-TV" is written below the box. On the right side of the picture is a prison yard with three males in the yard next to an orange building with a light fixutre. A male with a pistol is on top of a tower near the outer edge of the prison yard. A green wall is next to and rises taller than the guard tower. The green wall includes two red thunderbolts going into the green tower. Four birds (?) are above the green wall. A purple sun shines on the prison yard with a black ground in front of it. The word "Hollywood" is above the prison drawing.
DOI: 10.17182/hepdata.127924.v1/t1
title: "Table 1" of "Measurement of electroweak $Z(\nu\bar{\nu})\gamma jj$ production and limits on anomalous quartic gauge couplings in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector"

description: These graphs indicate the effect of the main theory uncertainties, which are associated with the renormalisation and factorisation scales (dashed cyan), underlying event and parton showering (UE+PS) or generator choice (dash-dotted red), alternative PDF sets (dotted orange), combined NNPDF set variation and $\alpha_s$ uncertainty (loosely dash-dotted green). These are shown in the signal region for the $Z(\nu\bar{\nu})\gamma jj$ EWK process. The BDT classifier response was remapped into equal width bins for better representation. The uncertainty band corresponds to the uncertainty due to the limited number of MC events.
description: CERN-LHC.
 The production of electroweak $Z(\nu\bar{\nu})\gamma$ in association with two jets is studied in a regime with a high transverse momentum photon above 150 GeV using proton-proton collisions at centre-of-mass energy of 13 TeV at the Large Hadron Collider. The analysis uses a data sample with an integrated luminosity of 139 fb$^{-1}$ collected by the ATLAS detector during the 2015-2018 LHC data taking. This process is an important probe of the electroweak symmetry breaking mechanism in the Standard Model and is sensitive to quartic gauge boson couplings via vector-boson scattering. The fiducial $Z(\nu\bar{\nu})\gamma jj$ cross section for the electroweak production is measured to be 0.75$^{+0.32}_{-0.28}$ fb and is consistent with the Standard Model prediction. Evidence for the electroweak $Z(\nu\bar{\nu})\gamma jj$ production is found with a significance of 3.2$\sigma$ in the background-only hypothesis, compared with an expected significance of 3.7$\sigma$. Combining this result with the previously published ATLAS observation of electroweak $Z(\nu\bar{\nu})\gamma jj$ production yields in an observed (expected) signal significance of 6.3$\sigma$ (6.6$\sigma$). Limits on anomalous quartic gauge boson couplings are obtained in the framework of Effective Field Theory with dimension-eight operators.


The extended fiducial region is defined as:
 - $p_{T}^{\nu\bar{\nu}} &gt;$ 120 GeV
 - $N_{phot}$ = 1
 - $p_{T}^{\gamma} &gt;$ 150 GeV 
 - $|\eta^{\gamma}| &lt;$ 2.37
 - $N_{jets} \geq 2$ 
 - $p_{T}^{jet} &gt;$ 50 GeV
 - $|\eta^{jet}| &lt;$ 4.5
 - $\Delta R(jet,\gamma) &gt;$ 0.3
 - $\Delta\phi(\gamma,$p_{T}^{\nu\bar{\nu}})&gt;$ 0.4
 - $\Delta\phi(\jet,$p_{T}^{\nu\bar{\nu}})&gt;$ 0.3
 - $m_{jj}&gt;$300 GeV
 - $\gamma$-centrality&lt;0.6.
DOI: 10.17182/hepdata.127924.v1/t2
title: "Table 2" of "Measurement of electroweak $Z(\nu\bar{\nu})\gamma jj$ production and limits on anomalous quartic gauge couplings in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector"

description: These graphs indicate the effect of the main theory uncertainties, which are associated with the renormalisation and factorisation scales (dashed cyan), underlying event and parton showering (UE+PS) or generator choice (dash-dotted red), alternative PDF sets (dotted orange), combined NNPDF set variation and $\alpha_{s}$ uncertainty (loosely dash-dotted green). These are shown in the signal region for the $Z(\nu\bar{\nu})\gamma jj$ QCD process. The BDT classifier response was remapped into equal width bins for better representation. The uncertainty band corresponds to the uncertainty due to the limited number of MC events.
description: CERN-LHC.
 The production of electroweak $Z(\nu\bar{\nu})\gamma$ in association with two jets is studied in a regime with a high transverse momentum photon above 150 GeV using proton-proton collisions at centre-of-mass energy of 13 TeV at the Large Hadron Collider. The analysis uses a data sample with an integrated luminosity of 139 fb$^{-1}$ collected by the ATLAS detector during the 2015-2018 LHC data taking. This process is an important probe of the electroweak symmetry breaking mechanism in the Standard Model and is sensitive to quartic gauge boson couplings via vector-boson scattering. The fiducial $Z(\nu\bar{\nu})\gamma jj$ cross section for the electroweak production is measured to be 0.75$^{+0.32}_{-0.28}$ fb and is consistent with the Standard Model prediction. Evidence for the electroweak $Z(\nu\bar{\nu})\gamma jj$ production is found with a significance of 3.2$\sigma$ in the background-only hypothesis, compared with an expected significance of 3.7$\sigma$. Combining this result with the previously published ATLAS observation of electroweak $Z(\nu\bar{\nu})\gamma jj$ production yields in an observed (expected) signal significance of 6.3$\sigma$ (6.6$\sigma$). Limits on anomalous quartic gauge boson couplings are obtained in the framework of Effective Field Theory with dimension-eight operators.


The extended fiducial region is defined as:
 - $p_{T}^{\nu\bar{\nu}} &gt;$ 120 GeV
 - $N_{phot}$ = 1
 - $p_{T}^{\gamma} &gt;$ 150 GeV 
 - $|\eta^{\gamma}| &lt;$ 2.37
 - $N_{jets} \geq 2$ 
 - $p_{T}^{jet} &gt;$ 50 GeV
 - $|\eta^{jet}| &lt;$ 4.5
 - $\Delta R(jet,\gamma) &gt;$ 0.3
 - $\Delta\phi(\gamma,$p_{T}^{\nu\bar{\nu}})&gt;$ 0.4
 - $\Delta\phi(\jet,$p_{T}^{\nu\bar{\nu}})&gt;$ 0.3
 - $m_{jj}&gt;$300 GeV
 - $\gamma$-centrality&lt;0.6.