cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.165888.v1/t16
title: "Vector portal limits, $c\tau=100$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\rightarrow\psi\overline{\psi}\right)$ as a function of the $\tilde{\omega}$ meson mass for $c\tau=100~\textrm{mm}$ in the vector portal model. It is assumed that $m_{\tilde{\omega}}=\tilde{\Lambda}=m_{\tilde{\eta}}$, where $m_{\tilde{\omega}}$, $\tilde{\Lambda}$, and $m_{\tilde{\eta}}$ are parameters of the dark sector: the mass of the spin-one meson, confinement scale, and the mass of the spin-zero meson, respectively. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t17
title: "Scenario A limits, $m_{\tilde{\pi}_{3}}=10m_{A'}$, $c\tau=10$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario A, for $\mathrm{A}'$ $c\tau=10~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=10m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t18
title: "Scenario A limits, $m_{\tilde{\pi}_{3}}=3m_{A'}$, $c\tau=10$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario A, for $\mathrm{A}'$ $c\tau=10~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=3m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t19
title: "Scenario A limits, $m_{\tilde{\pi}_{3}}=10m_{A'}$, $c\tau=100$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario A, for $\mathrm{A}'$ $c\tau=100~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=10m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t20
title: "Scenario A limits, $m_{\tilde{\pi}_{3}}=3m_{A'}$, $c\tau=100$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario A, for $\mathrm{A}'$ $c\tau=100~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=3m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t21
title: "Scenario B1 limits, $m_{\tilde{\pi}_{3}}=10m_{A'}$, $c\tau=10$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario B1, for $\tilde{\pi}_{3}$ $c\tau=10~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=10m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t22
title: "Scenario B1 limits, $m_{\tilde{\pi}_{3}}=3m_{A'}$, $c\tau=10$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario B1, for $\tilde{\pi}_{3}$ $c\tau=10~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=3m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t23
title: "Scenario B1 limits, $m_{\tilde{\pi}_{3}}=10m_{A'}$,$c\tau=100$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario B1, for $\tilde{\pi}_{3}$ $c\tau=100~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=10m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t24
title: "Scenario B1 limits, $m_{\tilde{\pi}_{3}}=3m_{A'}$,$c\tau=100$mm" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\to\psi\overline{\psi}\right)$ as a function of the $\mathrm{A}'$ mass in Scenario B1, for $\tilde{\pi}_{3}$ $c\tau=100~\textrm{mm}$, and $m_{\tilde{\pi}_{3}}=3m_{\textrm{A}'}$. It is assumed that $m_{\tilde{\eta}}=\tilde{\Lambda}=4m_{\tilde{\pi}_{2}}$ and ${\sin\theta=0.1}$, where $m_{\tilde{\eta}}$ is the mass of the dark-sector pseudoscalar meson and $\theta$ is the mixing angle parametrising the isospin violation. The branching fraction $\mathcal{B}(\tilde{\pi}_{3}\to \mathrm{A}'\mathrm{A}')$ is assumed to be 1. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.
DOI: 10.17182/hepdata.165888.v1/t25
title: "Vector portal 2D limits" of "Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: Observed upper limits at 95% CL on the branching fraction $\mathcal{B}\left(\textrm{H}\rightarrow\psi\overline{\psi}\right)$ as a function of the $\tilde{\omega}$ meson mass and $c\tau$ in the vector portal model. The phase space region that is left out is kinematically forbidden in the model. It is assumed that $m_{\tilde{\omega}}=\tilde{\Lambda}=m_{\tilde{\eta}}$, where $m_{\tilde{\omega}}$, $\tilde{\Lambda}$, and $m_{\tilde{\eta}}$ are parameters of the dark sector: the mass of the spin-one meson, confinement scale, and the mass of the spin-zero meson, respectively. The grey bands correspond to mass regions of known SM resonances, which are masked in the search.
description: A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high branching fraction of the dark mesons decaying into muons. The dark mesons are formed by the hadronisation of dark partons, which are produced by a decay of the Higgs boson. The search is performed using a data set corresponding to an integrated luminosity of $41.6~\textrm{fb}^{-1}$, which was collected in proton-proton collisions at $\sqrt{s}=13~\textrm{TeV}$ by the CMS experiment at the CERN LHC in 2018 using non-prompt muon triggers. The search is based on resonant muon pair signatures. Machine-learning techniques are employed in the analysis, utilising boosted decision trees to discriminate between signal and background. No significant excess is observed above the standard model expectation. Upper limits on the branching fraction of the Higgs boson decaying to dark partons are determined to be as low as $10^{-4}$ at 95% confidence level, surpassing and extending the existing limits on models with dark $\tilde{\omega}$ mesons for mean proper decay lengths of less than $500~\textrm{mm}$ and for $\tilde{\omega}$ masses down to $0.3~\textrm{GeV}$. First limits are set for extended dark-shower models with two dark flavours that contain dark photons, probing their masses down to $0.33~\textrm{GeV}$.