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
- Aad, Georges et al
- arXiv:2008.05928CERN-EP-2020-128CERN preprint ID: CERN-EP-2020-128
| (a), (b) Distribution of the reconstructed $m_{J\gamma}$ in the single- and double-$b$-tagged categories, with the background-only fits shown by the solid lines. The corresponding chi-square probabilities of the fits are 46\% and 23\%, after rebinning requiring at least five events in each bin. Hypothetical signal distributions for $m_{Z'}=2\,\tev$ and $m_{Z'}=3\,\tev$ with arbitrary normalizations are plotted for illustration purposes. The bottom panel gives the significance (deviation / statistical uncertainty) for each bin, calculated using the recommendation of Ref. \cite{Choudalakis_2012}. The impact on the background fit from the statistical uncertainties of BPDF parameters is shown as a light band around the solid line. This effect is incorporated into the significance calculation. (c) Observed and expected 95\% confidence-level limits on $\sigma\times \mathcal{B}$ as a function of $m_{Z'}$. |
| (a), (b) Distribution of the reconstructed $m_{J\gamma}$ in the single- and double-$b$-tagged categories, with the background-only fits shown by the solid lines. The corresponding chi-square probabilities of the fits are 46\% and 23\%, after rebinning requiring at least five events in each bin. Hypothetical signal distributions for $m_{Z'}=2\,\tev$ and $m_{Z'}=3\,\tev$ with arbitrary normalizations are plotted for illustration purposes. The bottom panel gives the significance (deviation / statistical uncertainty) for each bin, calculated using the recommendation of Ref. \cite{Choudalakis_2012}. The impact on the background fit from the statistical uncertainties of BPDF parameters is shown as a light band around the solid line. This effect is incorporated into the significance calculation. (c) Observed and expected 95\% confidence-level limits on $\sigma\times \mathcal{B}$ as a function of $m_{Z'}$. |
| (a), (b) Distribution of the reconstructed $m_{J\gamma}$ in the single- and double-$b$-tagged categories, with the background-only fits shown by the solid lines. The corresponding chi-square probabilities of the fits are 46\% and 23\%, after rebinning requiring at least five events in each bin. Hypothetical signal distributions for $m_{Z'}=2\,\tev$ and $m_{Z'}=3\,\tev$ with arbitrary normalizations are plotted for illustration purposes. The bottom panel gives the significance (deviation / statistical uncertainty) for each bin, calculated using the recommendation of Ref. \cite{Choudalakis_2012}. The impact on the background fit from the statistical uncertainties of BPDF parameters is shown as a light band around the solid line. This effect is incorporated into the significance calculation. (c) Observed and expected 95\% confidence-level limits on $\sigma\times \mathcal{B}$ as a function of $m_{Z'}$. |
| (a), (b) Distribution of the reconstructed $m_{J\gamma}$ in the single- and double-$b$-tagged categories, with the background-only fits shown by the solid lines. The corresponding chi-square probabilities of the fits are 46\% and 23\%, after rebinning requiring at least five events in each bin. Hypothetical signal distributions for $m_{Z'}=2\,\tev$ and $m_{Z'}=3\,\tev$ with arbitrary normalizations are plotted for illustration purposes. The bottom panel gives the significance (deviation / statistical uncertainty) for each bin, calculated using the recommendation of Ref. \cite{Choudalakis_2012}. The impact on the background fit from the statistical uncertainties of BPDF parameters is shown as a light band around the solid line. This effect is incorporated into the significance calculation. (c) Observed and expected 95\% confidence-level limits on $\sigma\times \mathcal{B}$ as a function of $m_{Z'}$. |
| (a), (b) Distribution of the reconstructed $m_{J\gamma}$ in the single- and double-$b$-tagged categories, with the background-only fits shown by the solid lines. The corresponding chi-square probabilities of the fits are 46\% and 23\%, after rebinning requiring at least five events in each bin. Hypothetical signal distributions for $m_{Z'}=2\,\tev$ and $m_{Z'}=3\,\tev$ with arbitrary normalizations are plotted for illustration purposes. The bottom panel gives the significance (deviation / statistical uncertainty) for each bin, calculated using the recommendation of Ref. \cite{Choudalakis_2012}. The impact on the background fit from the statistical uncertainties of BPDF parameters is shown as a light band around the solid line. This effect is incorporated into the significance calculation. (c) Observed and expected 95\% confidence-level limits on $\sigma\times \mathcal{B}$ as a function of $m_{Z'}$. |
| (a), (b) Distribution of the reconstructed $m_{J\gamma}$ in the single- and double-$b$-tagged categories, with the background-only fits shown by the solid lines. The corresponding chi-square probabilities of the fits are 46\% and 23\%, after rebinning requiring at least five events in each bin. Hypothetical signal distributions for $m_{Z'}=2\,\tev$ and $m_{Z'}=3\,\tev$ with arbitrary normalizations are plotted for illustration purposes. The bottom panel gives the significance (deviation / statistical uncertainty) for each bin, calculated using the recommendation of Ref. \cite{Choudalakis_2012}. The impact on the background fit from the statistical uncertainties of BPDF parameters is shown as a light band around the solid line. This effect is incorporated into the significance calculation. (c) Observed and expected 95\% confidence-level limits on $\sigma\times \mathcal{B}$ as a function of $m_{Z'}$. |