Search for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
JHEP 11 (2023) 150, 2023.

Abstract (data abstract)
A search for supersymmetry targeting the direct production of winos and higgsinos is conducted in final states with either two leptons ($e$ or $\mu$) with the same electric charge, or with three leptons. The analysis uses 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector during Run 2 of the Large Hadron Collider. No significant excess over the Standard Model expectation is observed. Simplified and complete models with and without $R$-parity conservation are considered. In topologies with intermediate states including either $Wh$ or $WZ$ pairs, wino masses up to 525 GeV and 250 GeV are excluded, respectively, for a bino of vanishing mass. Higgsino masses smaller than 440 GeV are excluded in a natural $R$-parity-violating model with bilinear terms. Upper limits on the production cross section of generic events beyond the Standard Model as low as 40 ab are obtained in signal regions optimised for these models and also for an $R$-parity-violating scenario with baryon-number-violating higgsino decays to top quarks and jets.

  • Exclusion contour(Obs) from Fig 13(b)

    Fig 13(b)

    10.17182/hepdata.134245.v1/t1

    Observed exclusion limits at 95% CL for the WZ-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from Fig 13(b) and Fig...

  • positive one $\sigma$ exclusion contour(Obs) from Fig 13(b)

    Fig 13(b)

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    positive one $\sigma$ observed exclusion limits at 95% CL for the WZ-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from Fig...

  • negative $\sigma$ exclusion contour(Obs) from Fig 13(b)

    Fig 13(b)

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    negative $\sigma$ variation of observed exclusion limits at 95% CL for the WZ-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from...

  • Excluded cross-section(Obs) from Fig 8(aux)

    Fig 8(aux)

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    Observed excluded cross-section at 95% CL for the WZ-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from Fig 8(aux).

  • positive one $\sigma$ exclusion contour(Exp) from Fig 13(b)

    Fig 13(b)

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    Expected exclusion limits at 95% CL for the WZ-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production.

  • Exclusion contour(Obs) from Fig 13(a)

    Fig 13(a)

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    Observed exclusion limits at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from from Fig 13(a) and...

  • Excluded cross-section(Obs) from Fig 7(aux)

    Fig 7(aux)

    10.17182/hepdata.134245.v1/t7

    Observed excluded cross-section at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from Fig 7(aux) and Fig...

  • positive one $\sigma$ exclusion contour(Obs) from Fig 13(a)

    Fig 13(a)

    10.17182/hepdata.134245.v1/t8

    positive one $\sigma$ observed exclusion limits at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from from...

  • negative one $\sigma$ exclusion contour(Obs) from Fig 13(a)

    Fig 13(a)

    10.17182/hepdata.134245.v1/t9

    negative one $\sigma$ observed exclusion limits at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production from from...

  • Exclusion contour(Exp) from Fig 13(a)

    Fig 13(a)

    10.17182/hepdata.134245.v1/t10

    Expected exclusion limits at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production.

  • positive one $\sigma$ exclusion contour(Exp) from Fig 13(a)

    Fig 13(a)

    10.17182/hepdata.134245.v1/t11

    Expected exclusion limits at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production.

  • negative one $\sigma$ exclusion contour(Exp) from Fig 13(a)

    Fig 13(a)

    10.17182/hepdata.134245.v1/t12

    Expected exclusion limits at 95% CL for the Wh-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ production.

  • Cutflow from Table 5(aux)

    Table 5

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    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the signal region $SR^{bRPV}_{2l-SS}$....

  • Cutflow from Table 6(aux)

    Table 6

    10.17182/hepdata.134245.v1/t14

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the signal region $SR^{bRPV}_{3l}$....

  • Cutflow from Table 3(aux)

    Table 3

    10.17182/hepdata.134245.v1/t15

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the signal region $SR^{WZ}_{high-m_{T2}}$....

  • Cutflow from Table 4(aux)

    Table 4

    10.17182/hepdata.134245.v1/t16

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the signal region $SR^{WZ}_{low-m_{T2}}$....

  • Cutflow of $SR^{RPV}_{2l1b}-L$ from Table 7(aux)

    Table 7

    10.17182/hepdata.134245.v1/t17

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the low mass $SR^{RPV}_{2l1b}$,...

  • Cutflow of $SR^{RPV}_{2l1b}-M$ from Table 7(aux)

    Table 7

    10.17182/hepdata.134245.v1/t18

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the medium mass $SR^{RPV}_{2l1b}$,...

  • Cutflow of $SR^{RPV}_{2l2b}-L$ from Table 8(aux)

    Table 8

    10.17182/hepdata.134245.v1/t19

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the low mass $SR^{RPV}_{2l2b}$,...

  • Cutflow of $SR^{RPV}_{2l2b}-M$ from Table 8(aux)

    Table 8

    10.17182/hepdata.134245.v1/t20

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the medium mass $SR^{RPV}_{2l2b}$,...

  • Cutflow of $SR^{RPV}_{2l2b}-H$ from Table 8(aux)

    Table 8

    10.17182/hepdata.134245.v1/t21

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the high mass $SR^{RPV}_{2l2b}$,...

  • Cutflow of $SR^{RPV}_{2l3b}-L$ from Table 9(aux)

    Table 9

    10.17182/hepdata.134245.v1/t22

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the low mass $SR^{RPV}_{2l3b}$,...

  • Cutflow of $SR^{RPV}_{2l3b}-M$ from Table 9(aux)

    Table 9

    10.17182/hepdata.134245.v1/t23

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the medium mass $SR^{RPV}_{2l3b}$,...

  • Cutflow of $SR^{RPV}_{2l3b}-H$ from Table 9(aux)

    Table 9

    10.17182/hepdata.134245.v1/t24

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the high mass $SR^{RPV}_{2l3b}$,...

  • Cutflow from Table 2(aux)

    Table 2

    10.17182/hepdata.134245.v1/t25

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the $SR^{Wh}_{low-m_{T2} }$. The...

  • Cutflow from Table 1(aux)

    Table 1

    10.17182/hepdata.134245.v1/t26

    Number of signal events expected for 139 fb$^{-1}$ at different stages of the event selection for the $SR^{Wh}_{high-m_{T2} }$. The...

  • Signal acceptance for $SR^{bRPV}_{2l-SS}$ from Fig 13(a)(aux)

    Fig 13(a)(aux)

    10.17182/hepdata.134245.v1/t27

    Signal Hepdataeptance for $SR^{bRPV}_{2l-SS}$ signal region from Fig 13(a)(aux) in a SUSY scenario where $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are...

  • Signal acceptance for $SR^{bRPV}_{3l}$ from Fig 13(b)(aux)

    Fig 13(b)(aux)

    10.17182/hepdata.134245.v1/t28

    Signal Hepdataeptance for $SR^{bRPV}_{3l}$ signal region from Fig 13(b)(aux) in a SUSY scenario where $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are...

  • Signal acceptance for $SR^{WZ}_{high-m_{T2}}$ from Fig12(a)(aux)

    Fig 12(a)(aux)

    10.17182/hepdata.134245.v1/t29

    Signal acceptance for $SR^{WZ}_{high-m_{T2}}$ in a SUSY scenario where the wino-like doublet pair ($\tilde{\chi}^{\pm} _{1} and \tilde{\chi}^{0} _{2}$) were produced...

  • Signal acceptance for $SR^{WZ}_{low-m_{T2}}$ from Fig 12(b)(aux)

    Fig 12(b)(aux)

    10.17182/hepdata.134245.v1/t30

    Signal acceptance for $SR^{WZ}_{low-m_{T2}}$ in a SUSY scenario where the wino-like doublet pair ($\tilde{\chi}^{\pm} _{1} and \tilde{\chi}^{0} _{2}$) were produced...

  • Signal acceptance from Fig 14(a)(aux)

    Fig 14(a)(aux)

    10.17182/hepdata.134245.v1/t31

    Signal acceptance for $SR^{RPV}_{2l1b}-L$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(b)(aux)

    Fig 14(b)(aux)

    10.17182/hepdata.134245.v1/t32

    Signal acceptance for $SR^{RPV}_{2l1b}-M$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(c)(aux)

    Fig 14(c)(aux)

    10.17182/hepdata.134245.v1/t33

    Signal acceptance for $SR^{RPV}_{2l2b}-L$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(d)(aux)

    Fig 14(d)(aux)

    10.17182/hepdata.134245.v1/t34

    Signal acceptance for $SR^{RPV}_{2l2b}-M$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(e)(aux)

    Fig 14(e)(aux)

    10.17182/hepdata.134245.v1/t35

    Signal acceptance for $SR^{RPV}_{2l2b}-H$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(f)(aux)

    Fig 14(f)(aux)

    10.17182/hepdata.134245.v1/t36

    Signal acceptance for $SR^{RPV}_{2l3b}-L$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(g)(aux)

    Fig 14(g)(aux)

    10.17182/hepdata.134245.v1/t37

    Signal acceptance for $SR^{RPV}_{2l3b}-M$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 14(h)(aux)

    Fig 14(h)(aux)

    10.17182/hepdata.134245.v1/t38

    Signal acceptance for $SR^{RPV}_{2l3b}-H$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency for $SR^{bRPV}_{2l-SS}$ from Fig 17(a)(aux)

    Fig 17(a)(aux)

    10.17182/hepdata.134245.v1/t39

    Signal efficiency for $SR^{bRPV}_{2l-SS}$ signal region in a SUSY scenario where $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are produced in pairs...

  • Signal efficiency for $SR^{bRPV}_{3l}$ from Fig 17(b)(aux)

    Fig 17(b)(aux)

    10.17182/hepdata.134245.v1/t40

    Signal efficiency for $SR^{bRPV}_{3l}$ signal region in a SUSY scenario where $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are produced in pairs...

  • Signal efficiency for $SR^{WZ}_{high-m_{T2}}$ from Fig16(a)(aux)

    Fig 16(a)(aux)

    10.17182/hepdata.134245.v1/t41

    Signal efficiency for $SR^{WZ}_{high-m_{T2}}$ in a SUSY scenario where the wino-like doublet pair ($\tilde{\chi}^{\pm} _{1} and \tilde{\chi}^{0} _{2}$) were produced...

  • Signal efficiency for $SR^{WZ}_{low-m_{T2}}$ from Fig 16(b)(aux)

    Fig 16(b)(aux)

    10.17182/hepdata.134245.v1/t42

    Signal efficiency for $SR^{WZ}_{low-m_{T2}}$ in a SUSY scenario where the wino-like doublet pair ($\tilde{\chi}^{\pm} _{1} and \tilde{\chi}^{0} _{2}$) were produced...

  • Signal efficiency from Fig 18(a)(aux)

    Fig 18(a)(aux)

    10.17182/hepdata.134245.v1/t43

    Signal efficiency for $SR^{RPV}_{2l1b}-L$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(b)(aux)

    Fig 18(b)(aux)

    10.17182/hepdata.134245.v1/t44

    Signal efficiency for $SR^{RPV}_{2l1b}-M$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(c)(aux)

    Fig 18(c)(aux)

    10.17182/hepdata.134245.v1/t45

    Signal efficiency for $SR^{RPV}_{2l2b}-L$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(d)(aux)

    Fig 18(d)(aux)

    10.17182/hepdata.134245.v1/t46

    Signal efficiency for $SR^{RPV}_{2l2b}-M$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(e)(aux)

    Fig 18(e)(aux)

    10.17182/hepdata.134245.v1/t47

    Signal efficiency for $SR^{RPV}_{2l2b}-H$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(f)(aux)

    Fig 18(f)(aux)

    10.17182/hepdata.134245.v1/t48

    Signal efficiency for $SR^{RPV}_{2l3b}-L$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(g)(aux)

    Fig 18(g)(aux)

    10.17182/hepdata.134245.v1/t49

    Signal efficiency for $SR^{RPV}_{2l3b}-M$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal efficiency from Fig 18(h)(aux)

    Fig 18(h)(aux)

    10.17182/hepdata.134245.v1/t50

    Signal efficiency for $SR^{RPV}_{2l3b}-H$ signal region in a SUSY scenario where the $\tilde{\chi}^{0} _{1} and \tilde{\chi}^{0} _{2}$ are directly produced...

  • Signal acceptance from Fig 11(a)(aux)

    Fig 11(a)

    10.17182/hepdata.134245.v1/t51

    Signal acceptance for $SR^{Wh}_{high-m_{T2} }$ signal region from Fig 11(a)(aux) in a SUSY scenario where direct production of a lightest...

  • Signal acceptance from Fig 11(b)(aux)

    Fig 11(b)

    10.17182/hepdata.134245.v1/t52

    Signal acceptance for $SR^{Wh}_{low-m_{T2} }$ signal region from Fig 11(b)(aux) in a SUSY scenario where direct production of a lightest...

  • Signal efficiency from Fig 15(a)(aux)

    Fig 15(a)

    10.17182/hepdata.134245.v1/t53

    Signal efficiency for $SR^{Wh}_{high-m_{T2} }$ signal region from Fig 15(a)(aux) in a SUSY scenario where direct production of a lightest...

  • Signal efficiency from Fig 15(b)(aux)

    Fig 15(b)

    10.17182/hepdata.134245.v1/t54

    Signal efficiency for $SR^{Wh}_{low-m_{T2} }$ signal region from Fig 15(b)(aux) in a SUSY scenario where direct production of a lightest...

  • X-section U.L of bilinear RPV model from Fig 14

    Fig 14

    10.17182/hepdata.134245.v1/t55

    Observed 95% X-section upper limits as a function of higgsino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{1}/\tilde{\chi}^{0}_{2}$ mass in the bilinear RPV model from Fig 14.

  • X-section U.L of UDD RPV model from Fig 18

    Fig 18

    10.17182/hepdata.134245.v1/t56

    Observed 95% X-section upper limits as a function of higgsino $\tilde{\chi}^{0}_{1}/\tilde{\chi}^{0}_{2}$ mass in the UDD RPV model from Fig 18.

  • X-section U.L of bilinear RPV model from Fig 9(aux)

    Fig 9(aux)

    10.17182/hepdata.134245.v1/t57

    Observed 95% X-section upper limits as a function of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$ mass in the WZ-mediated simplified model of wino $\tilde{\chi}^{\pm}_{1}/\tilde{\chi}^{0}_{2}$...

  • Distribution from Fig 11(a)

    Figure 11(a)

    10.17182/hepdata.134245.v1/t58

    N-1 distributions for $m_{T2}$ of observed data and expected background towards $SR^{WZ}_{high-m_{T2}}$ from publication's Figure 11(a) . The last bin...

  • Distribution from Fig 11(b)

    Figure 11(b)

    10.17182/hepdata.134245.v1/t59

    N-1 distributions for $m_{T2}$ of observed data and expected background towards $SR^{WZ}_{low-m_{T2}}$ from publication's Figure 11(b) . The last bin...

  • Distribution from Fig 11(c)

    Figure 11(c)

    10.17182/hepdata.134245.v1/t60

    N-1 distributions for $m_{T2}$ of observed data and expected background towards $SR^{bRPV}_{2l-SS}$ from publication's Figure 11(c) . The last bin...

  • Distribution from Fig 11(d)

    Figure 11(d)

    10.17182/hepdata.134245.v1/t61

    N-1 distributions for $m_{T2}$ of observed data and expected background towards $SR^{bRPV}_{3l}$ from publication's Figure 11(d) . The last bin...

  • Distribution from Fig 16(a)

    Figure 16(a)

    10.17182/hepdata.134245.v1/t62

    N-1 distributions for $\sum p^{b-jet}_{T}/\sum p^{jet}_{T}$ of observed data and expected background towards $SR^{RPV}_{2l1b}-L$ from publication's Figure 16(a) . The...

  • Distribution from Fig 16(b)

    Figure 16(b)

    10.17182/hepdata.134245.v1/t63

    N-1 distributions for $\sum p^{b-jet}_{T}/\sum p^{jet}_{T}$ of observed data and expected background towards $SR^{RPV}_{2l2b}-M$ from publication's Figure 16(b) . The...

  • Distribution from Fig 16(c)

    Figure 16(c)

    10.17182/hepdata.134245.v1/t64

    N-1 distributions for $\sum p^{b-jet}_{T}/\sum p^{jet}_{T}$ of observed data and expected background towards $SR^{RPV}_{2l3b}-H$ from publication's Figure 16(c) . The...

  • Distribution from Figure 8a

    Figure 8 (upper left).

    10.17182/hepdata.134245.v1/t65

    N-1 distribution for $E_{T}^{miss}$ in $SR^{Wh}_{high-m_{T2} }$ in ee channel

  • Distribution from Figure 8b

    Figure 8 (upper right).

    10.17182/hepdata.134245.v1/t66

    N-1 distribution for $E_{T}^{miss}$ in $SR^{Wh}_{high-m_{T2} }$ in e$\mu$ channel

  • Distribution from Figure 8c

    Figure 8 (bottom).

    10.17182/hepdata.134245.v1/t67

    N-1 distribution for $E_{T}^{miss}$ in $SR^{Wh}_{high-m_{T2} }$ in $\mu\mu$ channel

  • Distribution from Figure 9a

    Figure 9 (upper left).

    10.17182/hepdata.134245.v1/t68

    N-1 distribution for $\mathcal{S}(E_{T}^{miss})$ in $SR^{Wh}_{low-m_{T2} }$ in ee channel

  • Distribution from Figure 9b

    Figure 9 (upper right).

    10.17182/hepdata.134245.v1/t69

    N-1 distribution for $\mathcal{S}(E_{T}^{miss})$ in $SR^{Wh}_{low-m_{T2} }$ in e$\mu$ channel

  • Distribution from Figure 9c

    Figure 9 (bottom).

    10.17182/hepdata.134245.v1/t70

    N-1 distribution for $\mathcal{S}(E_{T}^{miss})$ in $SR^{Wh}_{low-m_{T2} }$ in $\mu\mu$ channel

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