Search for dark matter produced in association with a single top quark in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector

The ATLAS collaboration
Eur.Phys.J.C 81 (2021) 860, 2021.

Abstract (data abstract)
CERN-LHC, ATLAS. A search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudo-scalar mediator, which decays to the dark matter particles is presented. Processes where the pseudo-scalar mediator is produced in association with a single top quark are explored for the first time at the LHC. Several final states are considered, including either one or two charged leptons (electrons or muons) and a significant amount of missing transverse momentum. The analysis is based on the data collected with the ATLAS experiment at $\sqrt{s} = 13$ TeV during LHC Run 2 ($2015-2018$), corresponding to an integrated luminosity of 139 fb$^{-1}$.

  • Table 1

    Data from auxiliary figures 46a, 47a, 48a, 49a, 50a, 51a

    10.17182/hepdata.99906.v1/t1

    Efficiencies of the DMt samples in the tW1L channel for all bins in the SR. The efficiency is defined as...

  • Table 2

    Data from auxiliary figures 52a, 53a, 54a, 55a, 56a, 57a

    10.17182/hepdata.99906.v1/t2

    Acceptances on TRUTH level of the DMt samples in the tW1L channel for all bins in the SR. The acceptance...

  • Table 3

    Data from auxiliary figures 46b, 47b, 48b, 49b, 50b, 51b

    10.17182/hepdata.99906.v1/t3

    Efficiencies of the DMt samples in the tW1L channel for all bins in the SR. The efficiency is defined as...

  • Table 4

    Data from auxiliary figures 52b, 53b, 54b, 55b, 56b, 57b

    10.17182/hepdata.99906.v1/t4

    Acceptances on TRUTH level of the DMt samples in the tW1L channel for all bins in the SR. The acceptance...

  • Table 5

    Data from auxiliary figure 58a

    10.17182/hepdata.99906.v1/t5

    Efficiencies of the DMt samples in the tW2L SR. The efficiency is defined as the number of weighted reconstructed events...

  • Table 6

    Data from auxiliary figure 59a

    10.17182/hepdata.99906.v1/t6

    Acceptances on TRUTH level of the DMt samples in the tW2L SR. The acceptance is defined as the number of...

  • Table 7

    Data from auxiliary figure 58b

    10.17182/hepdata.99906.v1/t7

    Efficiencies of the DMt samples in the tW2L SR. The efficiency is defined as the number of weighted reconstructed events...

  • Table 8

    Data from auxiliary figure 59b

    10.17182/hepdata.99906.v1/t8

    Acceptances on TRUTH level of the DMt samples in the tW2L SR. The acceptance is defined as the number of...

  • Table 9

    Data from auxiliary figures 60a, 60b, 60c, 60d, 60e

    10.17182/hepdata.99906.v1/t9

    Efficiencies of the DMt samples in the tj1L channel for all bins in the SR. The efficiency is defined as...

  • Table 10

    Data from auxiliary figures 61a, 61b, 61c, 61d, 61e

    10.17182/hepdata.99906.v1/t10

    Acceptances on TRUTH level of the DMt samples in the tj1L channel for all bins in the SR. The acceptance...

  • Table 11

    Data from auxiliary Figure 03

    10.17182/hepdata.99906.v1/t11

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW1L analysis considering only DMt signal.

  • Table 12

    Data from auxiliary Figure 04

    10.17182/hepdata.99906.v1/t12

    Upper limits on excluded cross sections of the tW1L analysis considering only the DMt signal.

  • Table 13

    Data from Figure 13a

    10.17182/hepdata.99906.v1/t13

    The expected exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming only $tW$+DM contributions, for the tW1L analysis channel.

  • Table 14

    Data from Figure 13a

    10.17182/hepdata.99906.v1/t14

    The observed exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming only $tW$+DM contributions, for the tW1L analysis channel.

  • Table 15

    Data from auxiliary Figure 09

    10.17182/hepdata.99906.v1/t15

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW1L analysis considering only DMt signal.

  • Table 16

    Data from auxiliary Figure 10

    10.17182/hepdata.99906.v1/t16

    Upper limits on excluded cross sections of the tW1L analysis considering only the DMt signal.

  • Table 17

    Data from Figure 13b

    10.17182/hepdata.99906.v1/t17

    The expected exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming only $tW$+DM contributions, for the tW1L analysis channel.

  • Table 18

    Data from Figure 13b

    10.17182/hepdata.99906.v1/t18

    The observed exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming only $tW$+DM contributions, for the tW1L analysis channel.

  • Table 19

    Data from auxiliary Figure 15

    10.17182/hepdata.99906.v1/t19

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW2L analysis considering only DMt signal.

  • Table 20

    Data from auxiliary Figure 16

    10.17182/hepdata.99906.v1/t20

    Upper limits on excluded cross sections of the tW2L analysis considering only the DMt signal.

  • Table 21

    Data from Figure 13a

    10.17182/hepdata.99906.v1/t21

    The expected exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming only $tW$+DM contributions, for the tW2L analysis channel.

  • Table 22

    Data from Figure 13a

    10.17182/hepdata.99906.v1/t22

    The observed exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming only $tW$+DM contributions, for the tW2L analysis channel.

  • Table 23

    Data from auxiliary Figure 21

    10.17182/hepdata.99906.v1/t23

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW2L analysis considering only DMt signal.

  • Table 24

    Data from auxiliary Figure 22

    10.17182/hepdata.99906.v1/t24

    Upper limits on excluded cross sections of the tW2L analysis considering only the DMt signal.

  • Table 25

    Data from Figure 13b

    10.17182/hepdata.99906.v1/t25

    The expected exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming only $tW$+DM contributions, for the tW2L analysis channel.

  • Table 26

    Data from Figure 13b

    10.17182/hepdata.99906.v1/t26

    The observed exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming only $tW$+DM contributions, for the tW2L analysis channel.

  • Table 27

    Data from auxiliary Figure 27

    10.17182/hepdata.99906.v1/t27

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the combined tW1L and tW2L analyses considering...

  • Table 28

    Data from auxiliary Figure 28

    10.17182/hepdata.99906.v1/t28

    Upper limits on excluded cross sections of the combined tW1L and tW2L analyses considering only the DMt signal.

  • Table 29

    Data from Figure 13a

    10.17182/hepdata.99906.v1/t29

    The expected exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming only $tW$+DM contributions, for the statistical combination of the...

  • Table 30

    Data from Figure 13a

    10.17182/hepdata.99906.v1/t30

    The observed exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming only $tW$+DM contributions, for the statistical combination of the...

  • Table 31

    Data from auxiliary Figure 33

    10.17182/hepdata.99906.v1/t31

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the combined tW1L and tW2L analyses considering...

  • Table 32

    Data from auxiliary Figure 34

    10.17182/hepdata.99906.v1/t32

    Upper limits on excluded cross sections of the combined tW1L and tW2L analyses considering only the DMt signal.

  • Table 33

    Data from Figure 13b

    10.17182/hepdata.99906.v1/t33

    The expected exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming only $tW$+DM contributions, for the statistical combination of the...

  • Table 34

    Data from Figure 13b

    10.17182/hepdata.99906.v1/t34

    The observed exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming only $tW$+DM contributions, for the statistical combination of the...

  • Table 35

    Data from auxiliary Figure 07

    10.17182/hepdata.99906.v1/t35

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW1L analysis considering the DMt$\bar{t}$+DMt signal.

  • Table 36

    Data from Figure 14a

    10.17182/hepdata.99906.v1/t36

    The expected exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW1L analysis channel.

  • Table 37

    Data from Figure 14a

    10.17182/hepdata.99906.v1/t37

    The observed exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW1L analysis channel.

  • Table 38

    Data from auxiliary Figure 13

    10.17182/hepdata.99906.v1/t38

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW1L analysis considering the DMt$\bar{t}$+DMt signal.

  • Table 39

    Data from Figure 14b

    10.17182/hepdata.99906.v1/t39

    The expected exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW1L analysis channel.

  • Table 40

    Data from Figure 14b

    10.17182/hepdata.99906.v1/t40

    The observed exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW1L analysis channel.

  • Table 41

    Data from auxiliary Figure 19

    10.17182/hepdata.99906.v1/t41

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW2L analysis considering the DMt$\bar{t}$+DMt signal.

  • Table 42

    Data from Figure 14a

    10.17182/hepdata.99906.v1/t42

    The expected exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW2L analysis channel.

  • Table 43

    Data from Figure 14a

    10.17182/hepdata.99906.v1/t43

    The observed exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW2L analysis channel.

  • Table 44

    Data from auxiliary Figure 25

    10.17182/hepdata.99906.v1/t44

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tW2L analysis considering the DMt$\bar{t}$+DMt signal.

  • Table 45

    Data from Figure 14b

    10.17182/hepdata.99906.v1/t45

    The expected exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW2L analysis channel.

  • Table 46

    Data from Figure 14b

    10.17182/hepdata.99906.v1/t46

    The observed exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the tW2L analysis channel.

  • Table 47

    Data from auxiliary Figure 31

    10.17182/hepdata.99906.v1/t47

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the combined tW1L and tW2L analyses considering...

  • Table 48

    Data from Figure 14a

    10.17182/hepdata.99906.v1/t48

    The expected exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the statistical combination of...

  • Table 49

    Data from Figure 14a

    10.17182/hepdata.99906.v1/t49

    The observed exclusion contours as a function of $(m_a, m_{H^{\pm}})$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the statistical combination of...

  • Table 50

    Data from auxiliary Figure 37

    10.17182/hepdata.99906.v1/t50

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the combined tW1L and tW2L analyses considering...

  • Table 51

    Data from Figure 14b

    10.17182/hepdata.99906.v1/t51

    The expected exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the statistical combination of...

  • Table 52

    Data from Figure 14b

    10.17182/hepdata.99906.v1/t52

    The observed exclusion contours as a function of $(m_{H^{\pm}}, \tan\beta)$, assuming DM$t\bar{t}$ and DM$t$ contributions, for the statistical combination of...

  • Table 53

    Data from auxiliary Figure 38a

    10.17182/hepdata.99906.v1/t53

    Upper limits on signal strength (excluded cross section over theoretical cross section) of the tj1L analysis considering only the DMt...

  • Table 54

    Data from auxiliary Figure 38b

    10.17182/hepdata.99906.v1/t54

    Upper limits on upper limits on excluded cross sections of the tj1L analysis considering only the DMt signal.

  • Table 55

    Data from Figure 15a

    10.17182/hepdata.99906.v1/t55

    The expected and observed cross section exclusion limits as a function of $m_{H^{\pm}}$ in the tj1L analysis channel for signal...

  • Table 56

    Data from Figure 15b

    10.17182/hepdata.99906.v1/t56

    The expected and observed cross section exclusion limits as a function of $m_{H^{\pm}}$ in the tj1L analysis channel for signal...

  • Table 57

    Data from auxiliary figure 62a

    10.17182/hepdata.99906.v1/t57

    Cross sections of the DMt samples in the tW1L channel. The maps include all samples in the $m_a - m_H$...

  • Table 58

    Data from auxiliary figure 62c

    10.17182/hepdata.99906.v1/t58

    Cross sections of the DMt samples in the tW1L channel. The maps include all samples in the $m_H - tan\beta$...

  • Table 59

    Data from auxiliary figure 63a

    10.17182/hepdata.99906.v1/t59

    Cross sections times branching ratio of the DMt samples in the tW2L channel. The maps include all samples in the...

  • Table 60

    Data from auxiliary figure 63c

    10.17182/hepdata.99906.v1/t60

    Cross sections times branching ratio of the DMt samples in the tW2L channel. The maps include all samples in the...

  • Table 61

    Data from auxiliary figure 64a

    10.17182/hepdata.99906.v1/t61

    Cross sections of the DMt samples in the tj1L channel. The map includes all samples in the $m_H - tan\beta$...

  • Table 62

    Data from auxiliary figure 62b

    10.17182/hepdata.99906.v1/t62

    MC generator filter efficiencies of the DMt samples in the tW1L channel. The maps include all samples in the $m_a...

  • Table 63

    Data from auxiliary figure 62d

    10.17182/hepdata.99906.v1/t63

    MC generator filter efficiencies of the DMt samples in the tW1L channel. The maps include all samples in the $m_H...

  • Table 64

    Data from auxiliary figure 63b

    10.17182/hepdata.99906.v1/t64

    MC generator filter efficiencies of the DMt samples in the tW2L channel. The maps include all samples in the $m_a...

  • Table 65

    Data from auxiliary figure 63d

    10.17182/hepdata.99906.v1/t65

    MC generator filter efficiencies of the DMt samples in the tW2L channel. The maps include all samples in the $m_H...

  • Table 66

    Data from auxiliary figure 64b

    10.17182/hepdata.99906.v1/t66

    MC generator filter efficiencies of the DMt samples in the tj1L channel. The map includes all samples in the $m_H...

  • Table 67

    Data from table 06

    10.17182/hepdata.99906.v1/t67

    Background-only fit results for the tW1L and tW2L signal regions. The backgrounds which contribute only a small amount (rare processes...

  • Table 68

    Data from table 07

    10.17182/hepdata.99906.v1/t68

    Background-only fit results for the tj1L signal regions. The backgrounds which contribute only a small amount ($Z$+jets, rare processes such...

  • Table 69

    Data from auxiliary table 01

    10.17182/hepdata.99906.v1/t69

    Cutflow of the weighted events with statistical uncertainties for two DMt samples in all bins of the tW1L channel. The...

  • Table 70

    Data from auxiliary table 02

    10.17182/hepdata.99906.v1/t70

    Cutflow of the weighted events with statistical uncertainties for two DMt samples in the tW2L channel. The PreSelection includes at...

  • Table 71

    Data from auxiliary table 03

    10.17182/hepdata.99906.v1/t71

    Cutflow of the weighted events with the statistical uncertainties (except for the first cuts) for two DMt samples in all...

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