Compact Muon Solenoid
LHC, CERN
Visit us: CMS Public Website, CMS Physics ;
Contact us: CMS Publications Committee
| CMS-PAS-EXO-18-011 | ||
| Search for dark matter particles produced in association with the Higgs boson in proton-proton collisions at $\sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| March 2019 | ||
| Abstract: A search for dark matter (DM) particles is performed using events with a Higgs boson candidate and a large missing transverse momentum. The analysis is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The search is performed in five Higgs boson decay channels: a b quark-antiquark pair, a pair of $\tau$ leptons, a pair of photons, or a pair of W or Z bosons. No significant excesses over the expected standard model background are observed in any of the five channels. The results from the individual channels are combined to maximize the sensitivity of the search, which allows to set most stringent limits on DM production in the context of two benchmark simplified models. The results are further reinterpreted in terms of spin-independent DM-nucleon scattering cross section and compared to those from direct-detection DM experiments. This is the first search for DM particles produced in association with a Higgs boson decaying to a pair of W or Z bosons, and the first combination based on five Higgs boson decay channels. | ||
|
Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, JHEP 03 (2020) 025. The superseded preliminary plots can be found here. |
||
| Figures | Summary | Additional Figures | References | CMS Publications |
|---|
| Figures | |
png pdf |
Figure 1:
Representative Feynman diagrams for the two benchmark signal models considered in this note, the Z'-2HDM model (left) and the baryonic Z' model (right). |
png pdf |
Figure 1-a:
Representative Feynman diagram for Z'-2HDM model. |
png pdf |
Figure 1-b:
Representative Feynman diagram for baryonic Z' model. |
png pdf |
Figure 2:
The distribution of ${{p_{\mathrm {T}}} ^\text {miss}}$ at the generator level for the Z'-2HDM model (left), showing the variation as a function of the two main model parameters varied in the analysis: ${m_ {{\mathrm {Z}^\prime}}}$ and ${m\mathrm {_A}}$, and the baryonic Z' model (right), showing the variation as a function of ${m_ {{\mathrm {Z}^\prime}}}$ and ${m_\chi}$. All other parameters of the models are fixed to the values specified in the text. |
png pdf |
Figure 2-a:
The distribution of ${{p_{\mathrm {T}}} ^\text {miss}}$ at the generator level for the Z'-2HDM model, showing the variation as a function of the two main model parameters varied in the analysis: ${m_ {{\mathrm {Z}^\prime}}}$ and ${m\mathrm {_A}}$. All other parameters are fixed to the values specified in the text. |
png pdf |
Figure 2-b:
The distribution of ${{p_{\mathrm {T}}} ^\text {miss}}$ at the generator level for the baryonic Z' model, showing the variation as a function of ${m_ {{\mathrm {Z}^\prime}}}$ and ${m_\chi}$. All other parameters are fixed to the values specified in the text. |
png pdf |
Figure 3:
The distribution of ${m_{{\ell} {\ell}}}$ (left) and ${\Delta R_{{\ell} {\ell}}}$ (right) after the preselection. The total signal event yield is scaled by a factor of 500 (100) for the Z'-2HDM (baryonic Z') model. |
png pdf |
Figure 3-a:
The distribution of ${m_{{\ell} {\ell}}}$ after the preselection. The total signal event yield is scaled by a factor of 500 (100) for the Z'-2HDM (baryonic Z') model. |
png pdf |
Figure 3-b:
The distribution of ${\Delta R_{{\ell} {\ell}}}$ after the preselection. The total signal event yield is scaled by a factor of 500 (100) for the Z'-2HDM (baryonic Z') model. |
png pdf |
Figure 4:
Distributions of the MVA discriminants trained for the Z'-2HDM (left) and baryonic Z' (right) models in the signal-enriched phase space. The total signal event yield is scaled by a factor 500 (100) for the Z'-2HDM (baryonic Z') model. |
png pdf |
Figure 4-a:
Distribution of the MVA discriminant trained for the Z'-2HDM model in the signal-enriched phase space. The total signal event yield is scaled by a factor 500. |
png pdf |
Figure 4-b:
Distribution of the MVA discriminant trained for the baryonic Z' model in the signal-enriched phase space. The total signal event yield is scaled by a factor 100. |
png pdf |
Figure 5:
The four-lepton invariant mass (left) and ${{p_{\mathrm {T}}} ^\text {miss}}$ distributions (right) in data and simulation, after the SM Higgs boson selection. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. Two signal benchmarks, corresponding to the Z'-2HDM (orange line) and baryonic Z' (black line) models are superimposed. |
png pdf |
Figure 5-a:
The four-lepton invariant mass distribution in data and simulation, after the SM Higgs boson selection. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. Two signal benchmarks, corresponding to the Z'-2HDM (orange line) and baryonic Z' (black line) models are superimposed. |
png pdf |
Figure 5-b:
The ${{p_{\mathrm {T}}} ^\text {miss}}$ distribution in data and simulation, after the SM Higgs boson selection. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. Two signal benchmarks, corresponding to the Z'-2HDM (orange line) and baryonic Z' (black line) models are superimposed. |
png pdf |
Figure 6:
The MVA discriminant distribution for the expected backgrounds and observed events in data for the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ analysis for the Z'-2HDM (left) and baryonic Z' (right) selections. Benchmark signal contributions for these two models are also shown, scaled by a factor of 500 and 100, respectively, for better visibility. The ratios of the data and the sum of all the SM backgrounds are shown in the bottom panels. The hatched bands correspond to the statistical and systematic uncertainties added in quadrature. |
png pdf |
Figure 6-a:
The MVA discriminant distribution for the expected backgrounds and observed events in data for the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ analysis for the Z'-2HDM selection. Benchmark signal contributions are also shown, scaled by a factor of 500 for better visibility. The ratio of the data and the sum of all the SM backgrounds is shown in the bottom panel. The hatched bands correspond to the statistical and systematic uncertainties added in quadrature. |
png pdf |
Figure 6-b:
The MVA discriminant distribution for the expected backgrounds and observed events in data for the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ analysis for the baryonic Z' selection. Benchmark signal contributions are also shown, scaled by a factor of 100 for better visibility. The ratio of the data and the sum of all the SM backgrounds is shown in the bottom panel. The hatched bands correspond to the statistical and systematic uncertainties added in quadrature. |
png pdf |
Figure 7:
The ${{p_{\mathrm {T}}} ^\text {miss}}$ distribution for the expected background events and observed events in data ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ analysis. Two benchmark signal model contributions (Z'-2HDM in orange and baryonic Z' in black) are also shown. The ratios of the data and the sum of all the SM backgrounds are shown in the bottom panels. The hatched band corresponds to the statistical and systematic uncertainties added in quadrature. |
png pdf |
Figure 8:
The observed and expected 95% CL upper limits on the DM production cross section for the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ (upper) and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ (lower) analyses for the Z'-2HDM with ${m\mathrm {_A}} = $ 300 GeV (left) and baryonic Z' with ${m_\chi} = $ 1 GeV (right) models. The inner and outer shaded bands show the 68 and 95% uncertainties in the expected limit, respectively. |
png pdf |
Figure 8-a:
The observed and expected 95% CL upper limits on the DM production cross section for the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ analysis for the Z'-2HDM with ${m\mathrm {_A}} = $ 300 GeV model. The inner and outer shaded bands show the 68 and 95% uncertainties in the expected limit, respectively. |
png pdf |
Figure 8-b:
The observed and expected 95% CL upper limits on the DM production cross section for the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ analysis for the baryonic Z' with ${m_\chi} = $ 1 GeV model. The inner and outer shaded bands show the 68 and 95% uncertainties in the expected limit, respectively. |
png pdf |
Figure 8-c:
The observed and expected 95% CL upper limits on the DM production cross section for the ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ analysis for the Z'-2HDM with ${m\mathrm {_A}} = $ 300 GeV model. The inner and outer shaded bands show the 68 and 95% uncertainties in the expected limit, respectively. |
png pdf |
Figure 8-d:
The observed and expected 95% CL upper limits on the DM production cross section for the ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ analysis for the baryonic Z' with ${m_\chi} = $ 1 GeV model. The inner and outer shaded bands show the 68 and 95% uncertainties in the expected limit, respectively. |
png pdf |
Figure 9:
The observed and expected 95% CL upper limits on $\sigma /\sigma _\text {th}$ for the Z'-2HDM (left) and baryonic Z' (right) models for the five individual decay modes of the Higgs boson, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$, as well as their combination. Various mass hypotheses for Z' are considered for a fixed value of ${m\mathrm {_A}} = $ 300 GeV (${m_\chi} = $ 1 GeV) for Z'-2HDM (baryonic Z') model. The inner and outer shaded bands show the 68 and 95% CL uncertainties in the expected limit, respectively. |
png pdf |
Figure 9-a:
The observed and expected 95% CL upper limits on $\sigma /\sigma _\text {th}$ for the Z'-2HDM model for the five individual decay modes of the Higgs boson, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$, as well as their combination. Various mass hypotheses for Z' are considered for a fixed value of ${m\mathrm {_A}} = $ 300 GeV. The inner and outer shaded bands show the 68 and 95% CL uncertainties in the expected limit, respectively. |
png pdf |
Figure 9-b:
The observed and expected 95% CL upper limits on $\sigma /\sigma _\text {th}$ for the baryonic Z' model for the five individual decay modes of the Higgs boson, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$, as well as their combination. Various mass hypotheses for Z' are considered for a fixed value of ${m_\chi} = $ 1 GeV. The inner and outer shaded bands show the 68 and 95% CL uncertainties in the expected limit, respectively. |
png pdf |
Figure 10:
The observed and expected 95% CL exclusion contours on $\sigma /\sigma _\text {th}$ in the ${m_ {{\mathrm {Z}^\prime}}}$ - ${m\mathrm {_A}}$ and ${m_ {{\mathrm {Z}^\prime}}}$ - ${m_\chi}$ planes for the Z'-2HDM (left) and baryonic Z' (right) models, respectively. The region enclosed by the contours is excluded using the combination of the five decay channels of the Higgs boson, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$, for the benchmark scenarios: $ {g_{{\mathrm {Z}'}}}= $ 0.8, $ {g_{\chi}}= $ 1, $\tan\beta = $ 1, ${m_\chi} = $ 100 GeV, and ${m\mathrm {_A}} = m_ {\mathrm {H}} = {m_{\mathrm {H^{{\mu}}}}} $ for the Z'-2HDM and $g_{\chi} = $ 1, $g_{{\mathrm {q}}} = $ 0.25 for the baryonic Z' models. |
png pdf |
Figure 10-a:
The observed and expected 95% CL exclusion contours on $\sigma /\sigma _\text {th}$ in the ${m_ {{\mathrm {Z}^\prime}}}$ - ${m\mathrm {_A}}$ plane for the Z'-2HDM model. The region enclosed by the contours is excluded using the combination of the five decay channels of the Higgs boson, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$, for the benchmark scenario: $ {g_{{\mathrm {Z}'}}}= $ 0.8, $ {g_{\chi}}= $ 1, $\tan\beta = $ 1, ${m_\chi} = $ 100 GeV, and ${m\mathrm {_A}} = m_ {\mathrm {H}} = {m_{\mathrm {H^{{\mu}}}}} $. |
png pdf |
Figure 10-b:
The observed and expected 95% CL exclusion contours on $\sigma /\sigma _\text {th}$ in the ${m_ {{\mathrm {Z}^\prime}}}$ - ${m_\chi}$ plane for the baryonic Z' models. The region enclosed by the contours is excluded using the combination of the five decay channels of the Higgs boson, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$, for the benchmark scenario: $g_{\chi} = $ 1, $g_{{\mathrm {q}}} = $ 0.25. |
png pdf |
Figure 11:
Observed 95% CL exclusion region in the ${m_ {{\mathrm {Z}^\prime}}}$ -$\tan\beta $ plane from the combination of the five Higgs boson decay channels, ${\mathrm {h} \to {\mathrm {b \bar{b}}}}$, ${\mathrm {h} \to \gamma \gamma}$, ${\mathrm {h} \to {\tau} {\tau}}$, ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$, and ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$. Each contour represents the excluded region for a given value of ${m\mathrm {_A}} = $ 300, 400, and 600 GeV. |
png pdf |
Figure 12:
The 90% CL exclusion limits on the DM-nucleon spin-independent scattering cross section ${\sigma ^{\mathrm {SI}}}$, as a function of ${m_{\mathrm {DM}}}$. Results obtained in this analysis are compared with those from several direct-detection experiments: CRESST-II [89], CDMSLite [90], PandaX-II [91], LUX [92], XENON-1T [93], and CDEX-10 [94]. |
| Summary |
| A search for dark matter particles produced in association with a Higgs boson, using asample of proton-proton collision data corresponding to an integrated luminosity of 35.9 fb$^{-1}$, is presented. Results from five decay modes of the Higgs boson, h $\to$ bb, h $\to$ gg, h $\to$ tt, h $\to$ WW, and h $\to$ ZZ, are discussed, along with their statistical combination. No significant deviation from the standard model prediction is observed in any of the channels. The 95% CL upper limits on production cross section of dark matter in a type-II two Higgs doublet model extended by a Z0 boson and in the baryonic Z0 model are set. These limits constitute the most stringent limits on the parameters of these two models to date. The searches in the h $\to$ WW and h $\to$ ZZ decay channels are performed for the first time. These are the first results showing the combination of all five major decay channels of the Higgs boson. The interpretation of the results in the baryonic Z0 model in terms of the spin-independent dark matter nucleon scattering cross section yields higher sensitivity than the existing results from direct-detection experiments for dark matter particle masses less than 5 GeV, for the chosen benchmark model parameters. |
| Additional Figures | |
png pdf |
Additional Figure 1:
(left) The $m_{\mathrm {T}}^{\ell\ell,\text{met}}$ and (right) the leading lepton $p_{\mathrm {T}}$ distributions in data and simulation in the top enriched phase space. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 1-a:
The $m_{\mathrm {T}}^{\ell\ell,\text{met}}$ distribution in data and simulation in the top enriched phase space. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 1-b:
The leading lepton $p_{\mathrm {T}}$ distribution in data and simulation in the top enriched phase space. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 2:
(left) The $m_{\mathrm {T}}^{\ell\ell,\text{met}}$ and (right) the leading lepton $p_{\mathrm {T}}$ distributions in data and simulation in the same signed di-lepton control region. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 2-a:
The $m_{\mathrm {T}}^{\ell\ell,\text{met}}$ distribution in data and simulation in the same signed di-lepton control region. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 2-b:
The leading lepton $p_{\mathrm {T}}$ distribution in data and simulation in the same signed di-lepton control region. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 3:
(left) The ${\Delta \phi _{{\ell} {\ell}}}$ and (right) the leading lepton $p_{\mathrm {T}}$ distributions in data and simulation in the $ {{\mathrm {Z}} /\gamma ^*\to \tau ^+\tau ^-} {m_{{\ell} {\ell}}} < $ 76 GeV control region. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 3-a:
The ${\Delta \phi _{{\ell} {\ell}}}$ distribution in data and simulation in the $ {{\mathrm {Z}} /\gamma ^*\to \tau ^+\tau ^-} {m_{{\ell} {\ell}}} < $ 76 GeV control region. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 3-b:
The leading lepton $p_{\mathrm {T}}$ distribution in data and simulation in the $ {{\mathrm {Z}} /\gamma ^*\to \tau ^+\tau ^-} {m_{{\ell} {\ell}}} < $ 76 GeV control region. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 4:
(left) The $m_{\mathrm {T}}^{\ell\ell,\text{met}}$ and (right) the leading lepton $p_{\mathrm {T}}$ distributions in data and simulation in the WW enriched phase space. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 4-a:
The $m_{\mathrm {T}}^{\ell\ell,\text{met}}$ distribution in data and simulation in the WW enriched phase space. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 4-b:
The leading lepton $p_{\mathrm {T}}$ distribution in data and simulation in the WW enriched phase space. Points with error bars correspond to data, while the contributions of simulated SM background processes are shown with stacked histograms. |
png pdf |
Additional Figure 5:
The observed 95% CL upper limits on $\mu = \sigma /\sigma _\text {th}$ and observed and expected exclusion contours in the $m_{\mathrm{Z}'}$-$m_{\mathrm{A}}$ and $m_{\mathrm{Z}'}$-$m_{\chi}$ planes for the Z′-2HDM (left) and baryonic Z′ (right) models, respectively, from the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ decay mode search. The observed exclusion contour for baryonic Z′ model is not visible because the observed limit on mu is larger than unity in the entire plane. |
png pdf |
Additional Figure 5-a:
The observed 95% CL upper limits on $\mu = \sigma /\sigma _\text {th}$ and observed and expected exclusion contours in the $m_{\mathrm{Z}'}$-$m_{\mathrm{A}}$ and $m_{\mathrm{Z}'}$-$m_{\chi}$ planes for the Z′-2HDM model, from the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ decay mode search. |
png pdf |
Additional Figure 5-b:
The observed 95% CL upper limits on $\mu = \sigma /\sigma _\text {th}$ and observed and expected exclusion contours in the $m_{\mathrm{Z}'}$-$m_{\mathrm{A}}$ and $m_{\mathrm{Z}'}$-$m_{\chi}$ planes for the baryonic Z′ model, from the ${\mathrm {h} \to {{\mathrm {W}} {\mathrm {W}}}}$ decay mode search. The observed exclusion contour is not visible because the observed limit on $\mu$ is larger than unity in the entire plane. |
png pdf |
Additional Figure 6:
The observed 95% CL upper limits on $\mu = \sigma /\sigma _\text {th}$ in the $m_{\mathrm{Z}'}$-$m_{\mathrm{A}}$ and $m_{\mathrm{Z}'}$-$m_{\chi}$ planes for the Z′-2HDM (left) and baryonic Z′ (right) models, respectively, from the ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ decay mode search. |
png pdf |
Additional Figure 6-a:
The observed 95% CL upper limits on $\mu = \sigma /\sigma _\text {th}$ in the $m_{\mathrm{Z}'}$-$m_{\mathrm{A}}$ and $m_{\mathrm{Z}'}$-$m_{\chi}$ planes for the Z′-2HDM model, from the ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ decay mode search. |
png pdf |
Additional Figure 6-b:
The observed 95% CL upper limits on $\mu = \sigma /\sigma _\text {th}$ in the $m_{\mathrm{Z}'}$-$m_{\mathrm{A}}$ and $m_{\mathrm{Z}'}$-$m_{\chi}$ planes for the baryonic Z′ model, from the ${\mathrm {h} \to {\mathrm {Z}} {\mathrm {Z}}}$ decay mode search. |
| References | ||||
| 1 | G. Bertone, D. Hooper, and J. Silk | Particle dark matter: evidence, candidates and constraints | PR 405 (2005) 279 | hep-ph/0404175 |
| 2 | Planck Collaboration | Planck 2015 results. XIII. Cosmological parameters | Astron. Astrophys. 594 (2016) A13 | 1502.01589 |
| 3 | J. L. Feng | Dark matter candidates from particle physics and methods of detection | Ann. Rev. Astron. Astrophys. 48 (2010) 495 | 1003.0904 |
| 4 | R. J. Scherrer and M. S. Turner | On the relic, cosmic abundance of stable weakly interacting massive particles | PRD 33 (1986) 1585 | |
| 5 | G. Steigman and M. S. Turner | Cosmological constraints on the properties of weakly interacting massive particles | NPB 253 (1985) 375 | |
| 6 | M. Beltran et al. | Maverick dark matter at colliders | JHEP 09 (2010) 037 | 1002.4137 |
| 7 | ATLAS Collaboration | Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector | JHEP 01 (2018) 126 | 1711.03301 |
| 8 | CMS Collaboration | Search for new physics in final states with an energetic jet or a hadronically decaying $ \mathrm{W} $ or $ \mathrm{Z} $ boson and transverse momentum imbalance at $ \sqrt{s}=$ 13 TeV | PRD 97 (2018) 092005 | CMS-EXO-16-048 1712.02345 |
| 9 | ATLAS Collaboration | Search for dark matter produced in association with bottom or top quarks in $ \sqrt{s}= $ 13 TeV pp collisions with the ATLAS detector | EPJC 78 (2018) 18 | 1710.11412 |
| 10 | CMS Collaboration | Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at $ \sqrt{s}= $ 13 TeV | JHEP 06 (2018) 027 | CMS-EXO-16-051 1801.08427 |
| 11 | ATLAS Collaboration | Search for dark matter at $ \sqrt{s}= $ 13 TeV in final states containing an energetic photon and large missing transverse momentum with the ATLAS detector | EPJC 77 (2017) 393 | 1704.03848 |
| 12 | CMS Collaboration | Search for new physics in the monophoton final state in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | JHEP 10 (2017) 073 | CMS-EXO-16-039 1706.03794 |
| 13 | ATLAS Collaboration | Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a $ Z $ boson in $ pp $ collisions at $ \sqrt{s} = $ 13 TeV with the ATLAS detector | PLB 776 (2018) 318 | 1708.09624 |
| 14 | CMS Collaboration | Search for new physics in events with a leptonically decaying Z boson and a large transverse momentum imbalance in proton-proton collisions at $ \sqrt{s} = $ 13 TeV | EPJC 78 (2018) 291 | CMS-EXO-16-052 1711.00431 |
| 15 | ATLAS Collaboration | Search for dark matter in events with a hadronically decaying vector boson and missing transverse momentum in $ pp $ collisions at $ \sqrt{s} = $ 13 TeV with the ATLAS detector | JHEP 10 (2018) 180 | 1807.11471 |
| 16 | ATLAS Collaboration | Observation of a new particle in the search for the standard model Higgs boson with the ATLAS detector at the LHC | PLB 716 (2012) 1 | 1207.7214 |
| 17 | CMS Collaboration | Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC | PLB 716 (2012) 30 | CMS-HIG-12-028 1207.7235 |
| 18 | CMS Collaboration | Observation of a new boson with mass near 125 GeV in pp collisions at $ \sqrt{s} = $ 7 and 8 TeV | JHEP 06 (2013) 081 | CMS-HIG-12-036 1303.4571 |
| 19 | L. Carpenter et al. | Mono-Higgs-boson: a new collider probe of dark matter | PRD 89 (2014) 075017 | 1312.2592 |
| 20 | J. M. No | Looking through the pseudoscalar portal into dark matter: novel mono-Higgs and mono-Z signatures at the LHC | PRD 93 (2016) 031701 | 1509.01110 |
| 21 | ATLAS Collaboration | Search for dark matter in events with missing transverse momentum and a higgs boson decaying to two photons in $ pp $ collisions at $ \sqrt{s}= $ 8 TeV with the ATLAS detector | PRL 115 (2015) 131801 | 1506.01081 |
| 22 | ATLAS Collaboration | Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in $ pp $ collisions at $ \sqrt{s} = $ 8 TeV with the ATLAS detector | PRD 93 (2016) 072007 | 1510.06218 |
| 23 | ATLAS Collaboration | Search for dark matter in association with a Higgs boson decaying to $ b $-quarks in $ pp $ collisions at $ \sqrt s= $ 13 TeV with the ATLAS detector | Phys. Lett.B 765 (2017) 11 | 1609.04572 |
| 24 | CMS Collaboration | Search for associated production of dark matter with a Higgs boson decaying to $ \mathrm{b}\overline{\mathrm{b}} $ or $ \gamma \gamma $ at $ \sqrt{s}= $ 13 TeV | JHEP 10 (2017) 180 | CMS-EXO-16-012 1703.05236 |
| 25 | ATLAS Collaboration | Search for dark matter in association with a Higgs boson decaying to two photons at $ \sqrt{s} = $ 13 TeV with the ATLAS detector | PRD 96 (2017) 112004 | 1706.03948 |
| 26 | ATLAS Collaboration | Search for dark matter produced in association with a Higgs boson decaying to $ b\bar b $ using 36 fb$ ^{-1} $ of $ pp $ collisions at $ \sqrt s= $ 13 TeV with the ATLAS detector | PRL 119 (2017) 181804 | 1707.01302 |
| 27 | CMS Collaboration | Search for dark matter produced in association with a Higgs boson decaying to $ \gamma\gamma $ or $ \tau^+\tau^- $ at $ \sqrt{s} = $ 13 TeV | JHEP 09 (2018) 046 | CMS-EXO-16-055 1806.04771 |
| 28 | CMS Collaboration | Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos and b quarks at $ \sqrt{s}= $ 13 TeV | JHEP 11 (2018) 172 | CMS-B2G-17-004 1807.02826 |
| 29 | CMS Collaboration | Search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | CMS-EXO-16-050 1811.06562 |
|
| 30 | D. Abercrombie et al. | Dark matter benchmark models for early LHC Run-2 searches: report of the ATLAS/CMS Dark Matter Forum | 1507.00966 | |
| 31 | G. C. Branco et al. | Theory and phenomenology of two-Higgs-doublet models | PR 516 (2012) 1 | 1106.0034 |
| 32 | N. Craig, J. Galloway, and S. Thomas | Searching for signs of the second Higgs doublet | 1305.2424 | |
| 33 | A. Berlin, T. Lin, and L.-T. Wang | Mono-Higgs detection of dark matter at the LHC | JHEP 06 (2014) 078 | 1402.7074 |
| 34 | CMS Collaboration | Search for associated production of dark matter with a Higgs boson decaying to $ b\overline{b} $ or $ \gamma\gamma $ at $ \sqrt{s}= $ 13 TeV | JHEP 10 (2017) 180 | CMS-EXO-16-012 1703.05236 |
| 35 | A. Boveia et al. | Recommendations on presenting LHC searches for missing transverse energy signals using simplified $ s $-channel models of dark matter | 1603.04156 | |
| 36 | ATLAS Collaboration | Search for new phenomena in dijet events using 37 fb$ ^{-1} $ of $ pp $ collision data collected at $ \sqrt{s}= $ 13 TeV with the ATLAS detector | PRD 96 (2017) 052004 | 1703.09127 |
| 37 | CMS Collaboration | Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | JHEP 01 (2018) 097 | CMS-EXO-17-001 1710.00159 |
| 38 | ATLAS Collaboration | Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in $ pp $ collisions at $ \sqrt{s}= $ 13 TeV | PRL 121 (2018) 081801 | 1804.03496 |
| 39 | CMS Collaboration | Search for narrow and broad dijet resonances in proton-proton collisions at $ \sqrt{s}= $ 13 TeV and constraints on dark matter mediators and other new particles | JHEP 08 (2018) 130 | CMS-EXO-16-056 1806.00843 |
| 40 | CMS Collaboration | Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at $ \sqrt{s}= $ 13 TeV | JHEP 11 (2017) 047 | CMS-HIG-16-041 1706.09936 |
| 41 | CMS Collaboration | The CMS trigger system | JINST 12 (2017) P01020 | CMS-TRG-12-001 1609.02366 |
| 42 | CMS Collaboration | The CMS experiment at the CERN LHC | JINST 3 (2008) S08004 | CMS-00-001 |
| 43 | J. Alwall et al. | The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations | JHEP 07 (2014) 079 | 1405.0301 |
| 44 | J. Alwall et al. | The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations | JHEP 07 (2014) 079 | 1405.0301 |
| 45 | T. Sjostrand et al. | An introduction to PYTHIA 8.2 | CPC 191 (2015) 159 | 1410.3012 |
| 46 | P. Nason | A New method for combining NLO QCD with shower Monte Carlo algorithms | JHEP 11 (2004) 040 | hep-ph/0409146 |
| 47 | S. Frixione, P. Nason, and C. Oleari | Matching NLO QCD computations with parton shower simulations: the POWHEG method | JHEP 11 (2007) 070 | 0709.2092 |
| 48 | S. Alioli, P. Nason, C. Oleari, and E. Re | A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX | JHEP 06 (2010) 043 | 1002.2581 |
| 49 | T. Melia, P. Nason, R. Rontsch, and G. Zanderighi | W$ ^+ $W$ ^- $, WZ and ZZ production in the POWHEG BOX | JHEP 11 (2011) 078 | 1107.5051 |
| 50 | J. M. Campbell, R. K. Ellis, and C. Williams | Bounding the Higgs width at the LHC: complementary results from $ H \to WW $ | PRD 89 (2014) 053011 | 1312.1628 |
| 51 | P. Meade, H. Ramani, and M. Zeng | Transverse momentum resummation effects in $ W^+W^- $ measurements | PRD 90 (2014) 114006 | 1407.4481 |
| 52 | P. Jaiswal and T. Okui | Explanation of the $ WW $ excess at the LHC by jet-veto resummation | PRD 90 (2014) 073009 | 1407.4537 |
| 53 | F. Caola, K. Melnikov, R. Rontsch, and L. Tancredi | QCD corrections to $ W^+W^- $ production through gluon fusion | PLB 754 (2016) 275 | 1511.08617 |
| 54 | S. Alioli, P. Nason, C. Oleari, and E. Re | NLO vector-boson production matched with shower in POWHEG | JHEP 07 (2008) 060 | 0805.4802 |
| 55 | E. Bagnaschi, G. Degrassi, P. Slavich, and A. Vicini | Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM | JHEP 02 (2012) 088 | 1111.2854 |
| 56 | P. Nason and C. Oleari | NLO Higgs boson production via vector-boson fusion matched with shower in POWHEG | JHEP 02 (2010) 037 | 0911.5299 |
| 57 | G. Luisoni, P. Nason, C. Oleari, and F. Tramontano | $ HW^{\pm} $/HZ + 0 and 1 jet at NLO with the POWHEG BOX interfaced to GoSam and their merging within MiNLO | JHEP 10 (2013) 083 | 1306.2542 |
| 58 | H. B. Hartanto, B. Jager, L. Reina, and D. Wackeroth | Higgs boson production in association with top quarks in the POWHEG BOX | PRD 91 (2015) 094003 | 1501.04498 |
| 59 | Y. Gao et al. | Spin determination of single-produced resonances at hadron colliders | PRD 81 (2010) 075022 | 1001.3396 |
| 60 | S. Bolognesi et al. | On the spin and parity of a single-produced resonance at the LHC | PRD 86 (2012) 095031 | 1208.4018 |
| 61 | NNPDF Collaboration | Parton distributions for the LHC Run II | JHEP 04 (2015) 040 | 1410.8849 |
| 62 | CMS Collaboration | Event generator tunes obtained from underlying event and multiparton scattering measurements | EPJC 76 (2016) 155 | CMS-GEN-14-001 1512.00815 |
| 63 | GEANT4 Collaboration | GEANT4---a simulation toolkit | NIMA 506 (2003) 250 | |
| 64 | CMS Collaboration | Particle-flow reconstruction and global event description with the CMS detector | JINST 12 (2017) P10003 | CMS-PRF-14-001 1706.04965 |
| 65 | CMS Collaboration | Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at $ \sqrt{s} = $ 8 TeV | JINST 10 (2015) P06005 | CMS-EGM-13-001 1502.02701 |
| 66 | M. Cacciari and G. P. Salam | Dispelling the $ n^{3} $ myth for the $ k_t $ jet-finder | PLB 641 (2006) 57 | hep-ph/0512210 |
| 67 | M. Cacciari, G. P. Salam, and G. Soyez | FastJet user manual | EPJC 72 (2012) 1896 | 1111.6097 |
| 68 | M. Cacciari and G. P. Salam | Pileup subtraction using jet areas | PLB 659 (2008) 119 | 0707.1378 |
| 69 | CMS Collaboration | Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV | JINST 12 (2017) 02014 | CMS-JME-13-004 1607.03663 |
| 70 | CMS Collaboration | Jet performance in pp collisions at $ \sqrt{s} = $ 7 TeV | CMS-PAS-JME-10-003 | |
| 71 | M. Wobisch and T. Wengler | Hadronization corrections to jet cross-sections in deep inelastic scattering | hep-ph/9907280 | |
| 72 | CMS Collaboration | A Cambridge-Aachen (C-A) based jet algorithm for boosted top-jet tagging | CMS-PAS-JME-09-001 | |
| 73 | D. Berteloni, P. Harris, M. Low, and N. Tran | Pileup per particle identification | JHEP 59 (2014) 059 | 1407.6013 |
| 74 | A. J. Larkoski, S. Marzani, G. Soyez, and J. Thaler | Soft Drop | JHEP 05 (2014) 146 | 1402.2657 |
| 75 | CMS Collaboration | Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV | JINST 13 (2018) P05011 | CMS-BTV-16-002 1712.07158 |
| 76 | CMS Collaboration | Reconstruction and identification of $ \tau $ lepton decays to hadrons and $ \nu_{\tau} $ at CMS | JINST 11 (2016) P01019 | CMS-TAU-14-001 1510.07488 |
| 77 | CMS Collaboration | Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states | JHEP 01 (2014) 096 | CMS-HIG-13-023 1312.1129 |
| 78 | CMS Collaboration | Measurements of differential cross sections of top quark pair production as a function of kinematic event variables in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | JHEP 06 (2018) 002 | CMS-TOP-16-014 1803.03991 |
| 79 | LHC Higgs Cross Section Working Group Collaboration | Handbook of LHC Higgs Cross Sections: 3. Higgs Properties | 1307.1347 | |
| 80 | G. Passarino | Higgs CAT | EPJC 74 (2014) 2866 | 1312.2397 |
| 81 | S. Frixione et al. | Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons | JHEP 06 (2015) 184 | 1504.03446 |
| 82 | CMS Collaboration | CMS luminosity measurements for the 2016 data taking period | CMS-PAS-LUM-17-001 | CMS-PAS-LUM-17-001 |
| 83 | J. Butterworth et al. | PDF4LHC recommendations for LHC Run II | JPG 43 (2016) 023001 | 1510.03865 |
| 84 | LHC Higgs Cross Section Working Group Collaboration | Handbook of LHC Higgs cross sections: 1. Inclusive observables | CERN-2011-002 | 1101.0593 |
| 85 | G. Cowan, K. Cranmer, E. Gross, and O. Vitells | Asymptotic formulae for likelihood-based tests of new physics | EPJC 71 (2011) 1554 | 1007.1727 |
| 86 | T. Junk | Confidence level computation for combining searches with small statistics | NIMA 434 (1999) 435 | hep-ex/9902006 |
| 87 | A. L. Read | Presentation of search results: the $ CL_s $ technique | JPG 28 (2002) 2693 | |
| 88 | ATLAS and CMS Collaborations, and the LHC Higgs Combination Group | Procedure for the LHC Higgs boson search combination in Summer 2011 | CMS-NOTE-2011-005 | |
| 89 | CRESST-II Collaboration | Results on light dark matter particles with a low-threshold CRESST-II detector | EPJC 76 (2016) 25 | 1509.01515 |
| 90 | SuperCDMS Collaboration | New results from the search for low-mass weakly interacting massive particles with the CDMS Low Ionization Threshold Experiment | PRL 116 (2016) 071301 | 1509.02448 |
| 91 | PandaX-II Collaboration | Dark matter results from 54-ton-day exposure of PandaX-II experiment | PRL 119 (2017) 181302 | 1708.06917 |
| 92 | LUX Collaboration | Results from a search for dark matter in the complete LUX exposure | PRL 118 (2017) 021303 | 1608.07648 |
| 93 | XENON Collaboration | First dark matter search results from the XENON1T experiment | PRL 119 (2017) 181301 | 1705.06655 |
| 94 | CDEX Collaboration | Limits on light weakly interacting massive particles from the first 102.8 kg $ {\times} $ day data of the CDEX-10 experiment | PRL 120 (2018) 241301 | 1802.09016 |
|
|
Compact Muon Solenoid LHC, CERN |
|
|
|
|
|
|