cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.115572.v1/t6
title: "Figure 6 (left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution under the conditions: $E_\gamma$ = 1400-1500 MeV; 1120 MeV $\leq M_{p\pi^0} \leq$ 1220 MeV; $\theta_p^{lab} \leq$ 25°; 25° $\leq \theta_\gamma^{lab} \leq$ 155°.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t7
title: "Figure 6 (right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution under the conditions: $E_\gamma$ = 1400-1500 MeV; 1120 MeV $\leq M_{p\pi^0} \leq$ 1220 MeV; $\theta_p^{lab} \leq$ 25°; 1° $\leq \theta_\gamma^{lab} \leq$ 155°.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t8
title: "Figure 7 (left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for $E_\gamma$ = 1400-1500 MeV and $M_{p\pi^0} \leq$ 1190 MeV, allowing for all proton and photon laboratory angles.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t10
title: "Figure 8 (top center)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1180 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t11
title: "Figure 8 (top right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t12
title: "Figure 8 (bottom left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1200 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t13
title: "Figure 8 (bottom center)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1210 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t16
title: "Figure 9 (top center)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1460 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t9
title: "Figure 8 (top left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1170 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.25549/vercoutere-ouc110611361
title: Blue nude woman next to a red pier

description: One nude blue female outlined in black is depicted from head to waist partially hidden behind a white and blue palm tree trunk and fronds. She is standing (or sitting?) on a brown wooden deck that has a red pier projecting from it into a blue and white body of water; pink rocks line the shore; a blue lattice fence is on two sides of the deck. See description of 001 for OT notes.
DOI: 10.17182/hepdata.115572.v1/t14
title: "Figure 8 (bottom right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1220 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t17
title: "Figure 9 (top right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1460-1500 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t18
title: "Figure 9 (bottom left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1500-1540 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t19
title: "Figure 9 (bottom center)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1540-1600 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t20
title: "Figure 9 (bottom right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1420-1540 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t21
title: "Figure 11 (left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the invariant mass distributions $M^2_{p\eta}$.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t22
title: "Figure 11 (center)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the invariant mass distributions $M^2_{\pi^0\eta}$.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t15
title: "Figure 9 (top left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution for the incident photon energy range $E_\gamma$ = 1400-1420 MeV and $M_{p\pi^0} \leq$ 1190 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t23
title: "Figure 11 (right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the invariant mass distributions $M^2_{p\pi^0}$, with a cut on the structure in the $M^2_{p\eta}$ invariant mass distribution.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t24
title: "Figure 12 (left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the $p-\eta$ opening angle distribution in the $\gamma p$ centre-of-mass system.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t25
title: "Figure 12 (left) difference" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the $p-\eta$ opening angle distribution in the $\gamma p$ centre-of-mass system.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t26
title: "Figure 12 (right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the $\pi^0-\eta$ opening angle distribution in the $\gamma p$ centre-of-mass system.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t27
title: "Figure 12 (right) difference" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Excess yield relative to the PWA distributions in the $\pi^0-\eta$ opening angle distribution in the $\gamma p$ centre-of-mass system.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.25549/vercoutere-ouc110611376
title: 3 bowls in a garden

description: Three purple and white round bowls filled with dark purple liquid placed side by side with a background of dark green, purple, and white flowers, possibly irises. See description of 001 for OT notes.
DOI: 10.17182/hepdata.115572.v1/t28
title: "Figure 13" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: Differential cross section $d\sigma/dM_{\pi^0\eta}$ for $E_\gamma$ = 1540-1600 MeV.
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t29
title: "Figure 17 (left)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{p\eta}$ invariant mass distribution, taken as difference to the PWA calculations (s. Fig. 11).
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t30
title: "Figure 17 (right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $M_{\pi^0\eta}$ invariant mass distribution, taken as difference to the PWA calculations (s. Fig. 11).
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115572.v1/t32
title: "Figure 18 (right)" of "Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV/$c^2$ in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction"

description: $\theta_{\pi^0\eta}$ opening angle distribution, taken as difference to the PWA calculations (s. Fig. 12).
description: CBELSA/TAPS. Observation of a structure in the $M_{p\eta}$ invariant mass distribution near 1700 MeV/c² in the $\gamma p \to p \pi^0\eta$ reaction
DOI: 10.17182/hepdata.115577.v2/t1
title: "Figure 6a" of "Search for long-lived particles decaying into muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with a dedicated high-rate data stream"

description: Expected and observed limits at 95% CL on the branching fraction B(hb --&gt; PHI X) . B(PHI --&gt; mu+mu-) as a function of signal mass for signal lifetime of 1 mm
description: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95 % confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.
DOI: 10.17182/hepdata.115577.v2/t2
title: "Figure 6b" of "Search for long-lived particles decaying into muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with a dedicated high-rate data stream"

description: Expected and observed limits at 95% CL on the branching fraction B(hb --&gt; PHI X) . B(PHI --&gt; mu+mu-) as a function of signal mass for signal lifetime of 100 mm
description: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95 % confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.
DOI: 10.17182/hepdata.115577.v2/t3
title: "Figure 7a" of "Search for long-lived particles decaying into muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with a dedicated high-rate data stream"

description: Expected and observed limits at 95% CL on the branching fraction B(H --&gt; ZD ZD) . B(ZD --&gt; mu+mu-) as a function of signal mass for signal lifetime of 1 mm
description: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95 % confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.
DOI: 10.17182/hepdata.115577.v2/t10
title: "Figure 12" of "Search for long-lived particles decaying into muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with a dedicated high-rate data stream"

description: Observed limits at 95% CL on the branching fraction B(H --&gt; ZD ZD) in the parameter space containing signal mass and kinetic mixing parameter. The ROOT file containing the values is available as additional resource
description: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95 % confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.
DOI: 10.17182/hepdata.115577.v2/t4
title: "Figure 7b" of "Search for long-lived particles decaying into muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with a dedicated high-rate data stream"

description: Expected and observed limits at 95% CL on the branching fraction B(H --&gt; ZD ZD) . B(ZD --&gt; mu+mu-) as a function of signal mass for signal lifetime of 100 mm
description: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95 % confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.
DOI: 10.17182/hepdata.115577.v2/t5
title: "Figure 8a" of "Search for long-lived particles decaying into muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with a dedicated high-rate data stream"

description: Expected and observed limits at 95% CL on the branching fraction B(H --&gt; ZD ZD) as a function of signal mass for signal lifetime of 1 mm
description: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95 % confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.