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Search for resonances decaying to three W bosons in the hadronic final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV

The CMS collaboration
CMS-B2G-21-002, 2021.

Abstract (data abstract)
A search for Kaluza--Klein excited vector boson resonances, $\mathrm{W}_{\mathrm{KK}}$, decaying in cascade to three $\mathrm{W}$ bosons via a scalar radion $\mathrm{R}$, $\mathrm{W}_{\mathrm{KK}} \to \mathrm{WR} \to \mathrm{WWW}$, with two or three massive jets is presented.The search is performed with proton-proton collision data recorded at $\sqrt{s}$ = 13 TeV, collected by the CMS experiment at the LHC, during 2016--2018, corresponding to an integrated luminosity of 138 $\mathrm{fb}^{-1}$.Two final states are simultaneously probed, one where the two $\mathrm{W}$ bosons produced by the $\mathrm{R}$ decay are reconstructed as separate, large-radius, massive jets, and one where they are merged in a single large-radius jet.The data observed are in agreement with the standard model expectations. Limits are set on the product of the $\mathrm{W}_{\mathrm{KK}}$ resonance cross section and branching fraction to three W bosons in an extended warped extra-dimensional model.

  • m_jj distribution at PS2

    Data from figure 2 (upper left)

    10.17182/hepdata.115182.v1/t1

    Distribution of $m_{\mathrm{jj}}$ for preselected events with $\mathrm{N}_{j}$ = 2

  • m_j distribution at PS2

    Data from figure 2 (upper center)

    10.17182/hepdata.115182.v1/t2

    Distribution of $m_{\mathrm{j}}$ for preselected events with $\mathrm{N}_{j}$ = 2

  • deep-WH distribution at PS2

    Data from figure 2 (upper right)

    10.17182/hepdata.115182.v1/t3

    Distribution of the deep-WH value of the highest-mass jet with $m_{\mathrm{j}}$ > 100 GeV for preselected events with $\mathrm{N}_{j}$ =...

  • m_jjj distribution at PS3

    Data from figure 2 (lower left)

    10.17182/hepdata.115182.v1/t4

    Distribution of $m_{\mathrm{jjj}}$ for preselected events with $\mathrm{N}_{j}$ = 3

  • m_j distribution at PS3

    Data from figure 2 (lower center)

    10.17182/hepdata.115182.v1/t5

    Distribution of $m_{\mathrm{j}}$ for preselected events with $\mathrm{N}_{j}$ = 3

  • deep-WH distribution at PS3

    Data from figure 2 (lower right)

    10.17182/hepdata.115182.v1/t6

    Distribution of the deep-WH value of the highest-mass jet with 60 < $m_{\mathrm{j}}$ < 100 GeV for preselected events with...

  • scale factors in LL region

    Data from figure 4 (upper left)

    10.17182/hepdata.115182.v1/t7

    scale factors (SFs) for W, $t^{2}$, and q/g matched jets in the low-$m_{\mathrm{j}}$ and low-$p_{\mathrm{T}}$ (LL) bin, as functions of...

  • scale factors in LH region

    Data from figure 4 (upper right)

    10.17182/hepdata.115182.v1/t8

    scale factors (SFs) for W, $t^{2}$, and q/g matched jets in the low-$m_{\mathrm{j}}$ and high-$p_{\mathrm{T}}$ (LH) bin, as functions of...

  • scale factors in HL region

    Data from figure 4 (lower left)

    10.17182/hepdata.115182.v1/t9

    scale factors (SFs) for $t^{2}$, $t^{3,4}$, and q/g matched jets in the high-$m_{\mathrm{j}}$ and low-$p_{\mathrm{T}}$ (HL) bin, as functions of...

  • scale factors in HH region

    Data from figure 4 (lower right)

    10.17182/hepdata.115182.v1/t10

    scale factors (SFs) for $t^{2}$, $t^{3,4}$, and q/g matched jets in the high-$m_{\mathrm{j}}$ and high-$p_{\mathrm{T}}$ (HH) bin, as functions of...

  • deep-W in LL of the single-lepton sideband

    Data from figure 5 (upper left)

    10.17182/hepdata.115182.v1/t11

    The deep-W discriminant of the jet with highest mass in the single-lepton sideband for LL samples.

  • deep-W in LH of the single-lepton sideband

    Data from figure 5 (upper right)

    10.17182/hepdata.115182.v1/t12

    The deep-W discriminant of the jet with highest mass in the single-lepton sideband for LH samples.

  • deep-WH in HL of the single-lepton sideband

    Data from figure 5 (lower left)

    10.17182/hepdata.115182.v1/t13

    The deep-WH discriminant of the jet with highest mass in the single-lepton sideband for HL samples.

  • deep-WH in HH of the single-lepton sideband

    Data from figure 5 (lower right)

    10.17182/hepdata.115182.v1/t14

    The deep-WH discriminant of the jet with highest mass in the single-lepton sideband for HH samples.

  • deep-W in CR1

    Data from figure 6 (upper left)

    10.17182/hepdata.115182.v1/t15

    Comparison of the distribution of data and simulated backgrounds, as a function of the deep-W discriminant value for the highest-mass...

  • deep-WH in CR2

    Data from figure 6 (upper center)

    10.17182/hepdata.115182.v1/t16

    Comparison of the distribution of data and simulated backgrounds, as a function of the deep-WH discriminant value for the highest-mass...

  • deep-WH in CR3

    Data from figure 6 (upper right)

    10.17182/hepdata.115182.v1/t17

    Comparison of the distribution of data and simulated backgrounds, as a function of the deep-WH discriminant value for the highest-mass...

  • deep-W in CR4

    Data from figure 6 (lower left)

    10.17182/hepdata.115182.v1/t18

    Comparison of the distribution of data and simulated backgrounds, as a function of the deep-W discriminant value for the highest-mass...

  • deep-W in CR6

    Data from figure 6 (lower right)

    10.17182/hepdata.115182.v1/t19

    Comparison of the distribution of data and simulated backgrounds, as a function of the deep-W discriminant value for the highest-mass...

  • signal decomposition of m_j in SR1-3

    Data from figure 7 (left)

    10.17182/hepdata.115182.v1/t20

    The $m_{\mathrm{j}^{\mathrm{max}}}$ distributions for different jet types for SR1–3 events of the signal with $m_{\mathrm{W}_{\mathrm{KK}}}$ = 2.5 TeV, $m_{\mathrm{R}}$ =...

  • signal decomposition of deep-W in SR1-3

    Data from figure 7 (center)

    10.17182/hepdata.115182.v1/t21

    The deep-W distribution normalized to unity for the shown components of of the signal with $m_{\mathrm{W}_{\mathrm{KK}}}$ = 2.5 TeV, $m_{\mathrm{R}}$...

  • signal decomposition of deep-WH in SR1-3

    Data from figure 7 (right)

    10.17182/hepdata.115182.v1/t22

    The deep-WH distribution normalized to unity for the shown components of of the signal with $m_{\mathrm{W}_{\mathrm{KK}}}$ = 2.5 TeV, $m_{\mathrm{R}}$...

  • m_jj in CR1

    Data from figure 8 (upper left)

    10.17182/hepdata.115182.v1/t23

    The $m_{\mathrm{jj}}$ distribution for CR1 for data and simulation.

  • m_jj in CR2

    Data from figure 8 (upper center)

    10.17182/hepdata.115182.v1/t24

    The $m_{\mathrm{jj}}$ distribution for CR2 for data and simulation.

  • m_jj in CR3

    Data from figure 8 (upper right)

    10.17182/hepdata.115182.v1/t25

    The $m_{\mathrm{jj}}$ distribution for CR3 for data and simulation.

  • m_jjj in CR4

    Data from figure 8 (lower left)

    10.17182/hepdata.115182.v1/t26

    The $m_{\mathrm{jjj}}$ distribution for CR45 for data and simulation.

  • m_jjj in CR6

    Data from figure 8 (lower right)

    10.17182/hepdata.115182.v1/t27

    The $m_{\mathrm{jjj}}$ distribution for CR6 for data and simulation.

  • Post-fit distributions of m_jj distribution in SR1

    Data from figure 9 (upper left)

    10.17182/hepdata.115182.v1/t28

    Post-fit distributions of the reconstructed triboson system ($m_{\mathrm{jj}}$) in data and simulation for SR1.

  • Post-fit distributions of m_jj distribution in SR2

    Data from figure 9 (upper center)

    10.17182/hepdata.115182.v1/t29

    Post-fit distributions of the reconstructed triboson system ($m_{\mathrm{jj}}$) in data and simulation for SR2.

  • Post-fit distributions of m_jj distribution in SR3

    Data from figure 9 (upper right)

    10.17182/hepdata.115182.v1/t30

    Post-fit distributions of the reconstructed triboson system ($m_{\mathrm{jj}}$) in data and simulation for SR3.

  • Post-fit distributions of m_jjj distribution in SR4

    Data from figure 9 (lower left)

    10.17182/hepdata.115182.v1/t31

    Post-fit distributions of the reconstructed triboson system ($m_{\mathrm{jjj}}$) in data and simulation for SR4.

  • Post-fit distributions of m_jjj distribution in SR5

    Data from figure 9 (lower center)

    10.17182/hepdata.115182.v1/t32

    Post-fit distributions of the reconstructed triboson system ($m_{\mathrm{jjj}}$) in data and simulation for SR5.

  • Post-fit distributions of m_jjj distribution in SR6

    Data from figure 9 (lower right)

    10.17182/hepdata.115182.v1/t33

    Post-fit distributions of the reconstructed triboson system ($m_{\mathrm{jjj}}$) in data and simulation for SR6.

  • Observed upper limits on the signal cross section

    Data from figure 10.

    10.17182/hepdata.115182.v1/t34

    Observed upper limits at $95\%$ CL on the signal cross section $\times$ branching fraction as functions of the $m_{\mathrm{W}_{\mathrm{KK}}}$ and...

  • Expected median lower limit contour on the masses

    Data from figure 10.

    10.17182/hepdata.115182.v1/t35

    Expected median lower limit contour on the $m_{\mathrm{W}_{\mathrm{KK}}}$ and $m_{\mathrm{R}}$ plane.

  • Expected + 1 s.d. lower limit contour on the masses

    Data from figure 10.

    10.17182/hepdata.115182.v1/t36

    Expected $+ 1$ s.d. lower limit contour on the $m_{\mathrm{W}_{\mathrm{KK}}}$ and $m_{\mathrm{R}}$ plane.

  • Expected - 1 s.d. lower limit contour on the masses

    Data from figure 10.

    10.17182/hepdata.115182.v1/t37

    Expected - 1 s.d. lower limit contour on the $m_{\mathrm{W}_{\mathrm{KK}}}$ and $m_{\mathrm{R}}$ plane.

  • Observed lower limit contour on the masses

    Data from figure 10.

    10.17182/hepdata.115182.v1/t38

    Observed lower limit contour on the $m_{\mathrm{W}_{\mathrm{KK}}}$ and $m_{\mathrm{R}}$ plane.

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