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Search for diboson resonances with boson-tagged jets in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
No Journal Information, 2017

Abstract
Narrow resonances decaying into $WW$, $WZ$ or $ZZ$ boson pairs are searched for in 36.7 fb $^{-1}$ of proton--proton collision data at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. The diboson system is reconstructed using pairs of large-radius jets with high transverse momentum and tagged as compatible with the hadronic decay of high-momentum $W$ or $Z$ bosons, using jet mass and substructure properties. The search is sensitive to diboson resonances with masses in the range 1.2-5.0 TeV. No significant excess is observed in any signal region. Exclusion limits are set at the 95% confidence level on the production cross section times branching ratio to dibosons for a range of theories beyond the Standard Model. Lower limits on the mass of new gauge bosons up to 3.5 TeV are set, depending on the assumed model.

  • Figure 1a

    Data from Figure 1a

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    Signal acceptance times efficiency as a function of mass for Scalar → WW in the heavy scalar model

  • Figure 1b

    Data from Figure 1b

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    Signal acceptance times efficiency as a function of mass for Z' → WW in the HVT model

  • Figure 1c

    Data from Figure 1c

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    Signal acceptance times efficiency as a function of mass for GKK → WW in the bulk RS model

  • Figure 4a

    Data from Figure 4a

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    Dijet mass distributions for data in the (a) WW signal region.

  • Figure 4b

    Data from Figure 4b

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    Dijet mass distributions for data in the (b) WZ signal region.

  • Figure 4c

    Data from Figure 4c

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    Dijet mass distributions for data in the (c) ZZ signal region.

  • Figure 4d

    Data from Figure 4d

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    Dijet mass distributions for data in the (d) WZ+WW signal region.

  • Figure 4e

    Data from Figure 4e

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    Dijet mass distributions for data in the (e) WW+ZZ signal region.

  • Figure 5a

    Data from Figure 5a

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    Upper limits at the 95% CL on the cross section times branching ratio for WW+WZ production as a function of...

  • Figure 5b

    Data from Figure 5b

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    Upper limits at the 95% CL on the cross section times branching ratio for WW+ZZ production as a function of...

  • Figure 5c

    Data from Figure 5c

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    Upper limits at the 95% CL on the cross section times branching ratio for (c) WW+ZZ production as a function...

  • Figure Aux 2a

    Data from Figure Aux 2a

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    Upper limits at the 95% CL on the cross section times branching ratio for WW production as a function of...

  • Figure Aux 2b

    Data from Figure Aux 2b

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    Upper limits at the 95% CL on the cross section times branching ratio for WZ production as a function of...

  • Figure Aux 3a

    Data from Figure Aux 3b

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    Upper limits at the 95% CL on the cross section times branching ratio for WW production as a function of...

  • Figure Aux 3b

    Data from Figure Aux 3b

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    Upper limits at the 95% CL on the cross section times branching ratio for ZZ production as a function of...

  • Figure Aux 3c

    Data from Figure Aux 3c

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    Upper limits at the 95% CL on the cross section times branching ratio for WW production as a function of...

  • Figure Aux 3d

    Data from Figure Aux 3d

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    Upper limits at the 95% CL on the cross section times branching ratio for ZZ production as a function of...

  • Figure Aux 4

    Data from Figure Aux 4

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    Upper limits at the 95% CL on the cross section times branching ratio for WW+ZZ production as a function of...

  • Figure Aux 5a

    Data from Figure Aux 5a

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    Upper limits at the 95% CL on the cross section times branching ratio for WW production as a function of...

  • Figure Aux 5b

    Data from Figure Aux 5b

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    Upper limits at the 95% CL on the cross section times branching ratio for ZZ production as a function of...

Version 2 modifications: Fix typo in the limit header from pb->fb in the 2sigma bands. Nothing else has changed.

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