Measurements of $K_S^0$ and $\Lambda^0$ production in $t\bar{t}$ final states have been performed. They are based on a data sample with integrated luminosity of 4.6 $\mathrm{fb}^{-1}$ from proton-proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the ATLAS detector at the Large Hadron Collider. Neutral strange particles are separated into three classes, depending on whether they are contained in a jet, with or without a $b$-tag, or not associated with a selected jet. The aim is to look for differences in their main kinematic distributions. A comparison of data with several Monte Carlo simulations using different hadronisation and fragmentation schemes, colour reconnection models and different tunes for the underlying event has been made. The production of neutral strange particles in $t\bar{t}$ dileptonic events is found to be well described by current Monte Carlo models for $K_S^0$ and $\Lambda^0$ production within jets, but not for those produced outside jets.
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Data from Figure 8A of the paper draft, and Table 13 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t1
The transverse momentum ($p_{T}$) distribution for $K^{0}_{S}$ production inside $b$-jets for unfolded data to particle level, normalised to the total...
Table 2
Data from Figure 8B of the paper draft
10.17182/hepdata.91243.v1/t2
The energy fraction ($x_{K}$) distribution for $K^{0}_{S}$ production inside $b$-jets for unfolded data to particle level, normalised to the total...
Table 3
Data from Figure 8C of the paper draft
10.17182/hepdata.91243.v1/t3
The energy distribution for $K^{0}_{S}$ production inside $b$-jets for unfolded data to particle level, normalised to the total number of...
Table 4
Data from Figure 8D of the paper draft, and Table 16 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t4
The pseudorapidity ($|\eta|$) distribution for $K^{0}_{S}$ production inside $b$-jets for unfolded data to particle level, normalised to the total number...
Table 5
Data from Figure 8E of the paper draft
10.17182/hepdata.91243.v1/t5
The multiplicity ($N_K$) distribution for $K^{0}_{S}$ production inside $b$-jets for unfolded data to particle level, including only visible decays ($K^0_S...
Table 6
Data from Figure 9A of the paper draft, and Table 14 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t6
The transverse momentum ($p_{T}$) distribution for $K^{0}_{S}$ production inside non $b$-jets for unfolded data to particle level, normalised to the...
Table 7
Data from Figure 9B of the paper draft
10.17182/hepdata.91243.v1/t7
The energy fraction ($x_{K}$) distribution for $K^{0}_{S}$ production inside non $b$-jets for unfolded data to particle level, normalised to the...
Table 8
Data from Figure 9C of the paper draft
10.17182/hepdata.91243.v1/t8
The energy distribution for $K^{0}_{S}$ production inside non $b$-jets for unfolded data to particle level, normalised to the total number...
Table 9
Data from Figure 9D of the paper draft, and Table 17 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t9
The pseudorapidity ($|\eta|$) distribution for $K^{0}_{S}$ production inside non $b$-jets for unfolded data to particle level, normalised to the total...
Table 10
Data from Figure 9E of the paper draft
10.17182/hepdata.91243.v1/t10
The multiplicity ($N_K$) distribution for $K^{0}_{S}$ production inside non $b$-jets for unfolded data to particle level, including only visible decays...
Table 11
Data from Figure 10A of the paper draft, and Table 12 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t11
The transverse momentum ($p_{T}$) distribution for $K^{0}_{S}$ production not associated with jets for unfolded data to particle level, normalised to...
Table 12
Data from Figure 10B of the paper draft
10.17182/hepdata.91243.v1/t12
The energy distribution for $K^{0}_{S}$ production not associated with jets for unfolded data to particle level, normalised to the total...
Table 13
Data from Figure 10C of the paper draft, and Table 15 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t13
The pseudorapidity ($|\eta|$) distribution for $K^{0}_{S}$ production not associated with jets for unfolded data to particle level, normalised to the...
Table 14
Data from Figure 10D of the paper draft
10.17182/hepdata.91243.v1/t14
The multiplicity ($N_K$) distribution for $K^{0}_{S}$ production not associated with jets for unfolded data to particle level, including only visible...
Table 15
Data from Figure 12A of the paper draft
10.17182/hepdata.91243.v1/t15
The transverse momentum ($p_{T}$) distribution for the total $K^{0}_{S}$ production for unfolded data to particle level, normalised to the total...
Table 16
Data from Figure 12B of the paper draft
10.17182/hepdata.91243.v1/t16
The energy distribution for the total $K^{0}_{S}$ production for unfolded data to particle level, normalised to the total number of...
Table 17
Data from Figure 12C of the paper draft
10.17182/hepdata.91243.v1/t17
The pseudorapidity ($|\eta|$) distribution for the total $K^{0}_{S}$ production for unfolded data to particle level, normalised to the total number...
Table 18
Data from Figure 12D of the paper draft
10.17182/hepdata.91243.v1/t18
The multiplicity ($N_K$) distribution for the total $K^{0}_{S}$ production for unfolded data to particle level, including only visible decays ($K^0_S...
Table 19
Data from Figure 11A of the paper draft, and Table 18 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t19
The transverse momentum ($p_{T}$) distribution for the total $\Lambda$ production for unfolded data to particle level, normalised to the total...
Table 20
Data from Figure 11B of the paper draft
10.17182/hepdata.91243.v1/t20
The energy distribution for the total $\Lambda$ production for unfolded data to particle level, normalised to the total number of...
Table 21
Data from Figure 11C of the paper draft, and Table 19 of the Appendix of Numerical results
10.17182/hepdata.91243.v1/t21
The pseudorapidity ($|\eta|$) distribution for the total $\Lambda$ production for unfolded data to particle level, normalised to the total number...
Table 22
Data from Table 6 of the paper draft
10.17182/hepdata.91243.v1/t22
$K^0_S$ and $\Lambda$ unfolded (particle-level) average multiplicities per event ($\langle n_{K,\Lambda}\rangle$), including statistical and systematic uncertainties, for each class and...
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ATLAS
Collaboration
(2019).
Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector. Eur.Phys.J.C 79 (2019) 1017.
Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector. HEPData (collection).
https://doi.org/10.17182/hepdata.91243
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ATLAS
Collaboration
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Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector (Version 1). HEPData (collection).
https://doi.org/10.17182/hepdata.91243.v1
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ATLAS
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(2019).
“Table 1” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t1
ATLAS
Collaboration
(2019).
“Table 2” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t2
ATLAS
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(2019).
“Table 3” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t3
ATLAS
Collaboration
(2019).
“Table 4” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t4
ATLAS
Collaboration
(2019).
“Table 5” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t5
ATLAS
Collaboration
(2019).
“Table 6” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t6
ATLAS
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(2019).
“Table 7” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t7
ATLAS
Collaboration
(2019).
“Table 8” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t8
ATLAS
Collaboration
(2019).
“Table 9” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t9
ATLAS
Collaboration
(2019).
“Table 10” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t10
ATLAS
Collaboration
(2019).
“Table 11” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t11
ATLAS
Collaboration
(2019).
“Table 12” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t12
ATLAS
Collaboration
(2019).
“Table 13” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t13
ATLAS
Collaboration
(2019).
“Table 14” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t14
ATLAS
Collaboration
(2019).
“Table 15” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t15
ATLAS
Collaboration
(2019).
“Table 16” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t16
ATLAS
Collaboration
(2019).
“Table 17” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t17
ATLAS
Collaboration
(2019).
“Table 18” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t18
ATLAS
Collaboration
(2019).
“Table 19” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t19
ATLAS
Collaboration
(2019).
“Table 20” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t20
ATLAS
Collaboration
(2019).
“Table 21” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t21
ATLAS
Collaboration
(2019).
“Table 22” of “Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.91243.v1/t22
When using this data, please cite the original publication:
ATLAS
Collaboration
(2019).
Measurement of $K_S^0$ and $\Lambda^0$ production in $t \bar{t}$ dileptonic events in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector. Eur.Phys.J.C 79 (2019) 1017.
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