Search for heavy resonances decaying into a photon and a hadronically decaying Higgs boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
Phys.Rev.Lett., 2020.

Abstract (data abstract)
This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at $\sqrt{s}=13$ TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of $139\,\mbox{fb}^{-1}$. The analysis is performed by reconstructing hadronically decaying Higgs boson $(H\to b\bar{b})$ candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two $b$-quarks in the single jet. No significant excess of events is observed above the expected background.

  • Table 1

    Data from Figure 1a

    10.17182/hepdata.95538.v1/t1

    Data distribution of the reconstructed $m_{J\gamma}$ and background only fitting in the single-b-tagged category. Background and signal fit functions are...

  • Table 2

    Data from Figure 1b

    10.17182/hepdata.95538.v1/t2

    Data distribution of the reconstructed $m_{J\gamma}$ and background only fitting in the double-b-tagged category. Background and signal fit functions are...

  • Table 3

    10.17182/hepdata.95538.v1/t3

    Background and signal functions, with their fit parameters. For the background function, the parameters are fitted from the data distribution....

  • Table 4

    Data from Figure 1c

    10.17182/hepdata.95538.v1/t4

    Observed and expected 95% confidence-level limits on sigma x BR as a function of mZ`.

  • Table 5

    Data from Table 03 of auxiliary material.

    10.17182/hepdata.95538.v1/t5

    Cutflow Table for 1 TeV, 2 TeV, 4 TeV MC signal samples and Data. Cut0: $\mathcal{L} \times \sigma \times B(Z`\to...

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