Search results for "Spin-1 Mediator"
showing 10 items of 12 documents
"Intermediate SR cutflow efficiencies" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$…
2020
Cumulative efficiencies for the intermediate category for signal samples with ms=160 GeV (a), ms=235 GeV (b) and ms=310 GeV (c), each with mZ'=1 TeV. The TAR+Comb algorithm reconstructs the dark Higgs candidate from a TAR jet with mTAR>60 GeV that is supplemented by up to two additional small-R jets within ΔRcone=2.5 of the TAR jet. Here, Δ φjets1,2,3 ETmiss is the smallest azimuthal angle between the ETmiss and any of the three highest-pT (leading) small-R jets. For details see text.
"Merged SR cutflow efficiencies" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fu…
2020
Cumulative efficiencies for the merged category for signal samples with ms=160 GeV (a), ms=235 GeV (b) and ms=310 GeV (c), each with mZ'=1 TeV. The dark Higgs candidate selection includes stringent jet substructure requirements and typically at most one candidate is present in signal events. Here, Δ φjets1,2,3 ETmiss is the smallest azimuthal angle between the ETmiss and any of the three highest-pT (leading) small-R jets.
"Upper limits on cross-section x BR (mZp=0.5 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^…
2020
Observed upper limits at 95% C.L. on σ(pp → s χχ) × B(s→ VV) for mZ'=0.5 TeV signal points. The expected limits, varied up and down by one and two standard deviations, are shown as green and yellow bands, respectively. The observed and expected limits are compared to the theoretical LO cross section for the σ(pp → s χχ) × B(s→ VV) process for mZ'=0.5 TeV, shown in dashed blue.
"Upper limits on mu (mZp=0.5 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in …
2020
The ratios (μ) of the 95% C.L. upper limits on the combined s→ W±W∓ and s→ ZZ cross section to simplified model expectations for the mZ'=0.5 TeV scenario, for various ms hypotheses. The observed limits (solid line) are consistent with the expectation under the SM-only hypothesis (dashed line) within uncertainties (filled band), except for a small excess for ms=160 GeV, discussed in the text.
"Upper limits on mu (mZp=1 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fu…
2020
The ratios (μ) of the 95% C.L. upper limits on the combined s→ W±W∓ and s→ ZZ cross section to simplified model expectations for the mZ'=1 TeV scenario, for various ms hypotheses. The observed limits (solid line) are consistent with the expectation under the SM-only hypothesis (dashed line) within uncertainties (filled band), except for a small excess for ms=160 GeV, discussed in the text.
"Upper limits on cross-section x BR (mZp=1.7 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^…
2020
Observed upper limits at 95% C.L. on σ(pp → s χχ) × B(s→ VV) for mZ'=1.7 TeV signal points. The expected limits, varied up and down by one and two standard deviations, are shown as green and yellow bands, respectively. The observed and expected limits are compared to the theoretical LO cross section for the σ(pp → s χχ) × B(s→ VV) process for mZ'=1.7 TeV, shown in dashed blue.
"Upper limits on cross-section x BR (mZp=1 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\m…
2020
Observed upper limits at 95% C.L. on σ(pp → s χχ) × B(s→ VV) for mZ'=1 TeV signal points. The expected limits, varied up and down by one and two standard deviations, are shown as green and yellow bands, respectively. The observed and expected limits are compared to the theoretical LO cross section for the σ(pp → s χχ) × B(s→ VV) process for mZ'=1 TeV, shown in dashed blue.
"Upper limits on mu (mZp=1.7 TeV)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in …
2020
The ratios (μ) of the 95% C.L. upper limits on the combined s→ W±W∓ and s→ ZZ cross section to simplified model expectations for the mZ'=1.7 TeV scenario, for various ms hypotheses. The observed limits (solid line) are consistent with the expectation under the SM-only hypothesis (dashed line) within uncertainties (filled band), except for a small excess for ms=160 GeV, discussed in the text.
"Sources of uncertainty" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fully hadr…
2020
Dominant sources of uncertainty for three dark Higgs scenarios after the fit to Asimov data generated from the expected values of the maximum-likelihood estimators including predicted signals with mZ' = 1 TeV and ms of (a) 160 GeV, (b) 235 GeV, and (c) 310 GeV. The uncertainty in the fitted signal yield relative to the theory prediction is presented. Total is the quadrature sum of statistical and total systematic uncertainties, which consider correlations.
"DataMC SR CRs (SR+CR fit)" of "Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fully h…
2020
SM background post-fit yields stacked in each SR and CR category and ETmiss bin and data overlaid with the maximum likelihood estimators set to the conditional values of the combined signal and control region fit. The hatched uncertainty band shown includes simulation statistics uncertainties, experimental systematic uncertainties, and V+jets theory modelling systematic uncertainties. Pre-fit uncertainties cover differences between the data and pre-fit background prediction.