cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.146740.v1/t96
title: "Table 48 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 48
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t97
title: "Table 49" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean-$p_{T}$ of $K^{0}_{S}$ in the away region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t98
title: "Table 49 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 49
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t99
title: "Table 50" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean-$p_{T}$ of $K^{0}_{S}$ in the towards region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t102
title: "Table 51 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 51
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t103
title: "Table 52" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean multiplicity of $\Lambda$ and $\bar{\Lambda}$ per unit $(\eta, \phi)$ in the away region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t104
title: "Table 52 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 52
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t105
title: "Table 53" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean multiplicity of $\Lambda$ and $\bar{\Lambda}$ per unit $(\eta, \phi)$ in the towards region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t106
title: "Table 53 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 53
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t107
title: "Table 54" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean multiplicity of $\Lambda$ and $\bar{\Lambda}$ per unit $(\eta, \phi)$ in the transverse region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t108
title: "Table 54 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 54
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t109
title: "Table 55" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean scalar sum-$p_{T}$ of $\Lambda$ and $\bar{\Lambda}$ per unit $(\eta, \phi)$ in the away region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t110
title: "Table 55 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 55
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t111
title: "Table 56" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean scalar sum-$p_{T}$ of $\Lambda$ and $\bar{\Lambda}$ per unit $(\eta, \phi)$ in the towards region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t112
title: "Table 56 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 56
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t113
title: "Table 57" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Mean scalar sum-$p_{T}$ of $\Lambda$ and $\bar{\Lambda}$ per unit $(\eta, \phi)$ in the transverse region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t114
title: "Table 57 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 57
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t115
title: "Table 58" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Ratio of the multiplicity of $\Lambda$ and $\bar{\Lambda}$ to prompt charged particles in the away region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t116
title: "Table 58 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 58
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t117
title: "Table 59" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Ratio of the multiplicity of $\Lambda$ and $\bar{\Lambda}$ to prompt charged particles in the towards region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t118
title: "Table 59 Covariance" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Statistical covariance between bins of Table 59
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.
DOI: 10.17182/hepdata.146740.v1/t119
title: "Table 60" of "Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

description: Ratio of the multiplicity of $\Lambda$ and $\bar{\Lambda}$ to prompt charged particles in the transverse region vs. $N_\textrm{ch,trans}$
description: Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, 
as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV.
The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes $K_{S}^{0}\rightarrow\pi^+\pi^-$, 
$\Lambda\rightarrow\pi^-p$ and $\bar\Lambda\rightarrow\pi^+\bar{p}$. 
These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event.
Events with a leading charged-particle jet in the range of $10 &lt; p_{T} \leq 40$ GeV are studied using the number of prompt charged particles in the transverse region.