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Measurement of the Higgs Boson Mass in the \(H\rightarrow \gamma \gamma \) Channel

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Physics with Photons Using the ATLAS Run 2 Data

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Abstract

The observation of a new particle in the search for the Standard Model Higgs boson by the ATLAS and CMS experiments [1, 2], with the LHC Run 1 data at center-of-mass energies of \(\sqrt{s}=7\) and 8 TeV, has been a major step towards the understanding of the mechanism of electroweak symmetry breaking [3,4,5]. As already illustrated in Sect. 2.4, the mass of the Higgs boson obtained from the combination of the ATLAS and the CMS Run 1 measurements is \(125.09 \pm 0.24\) GeV [6]. Measurements of the spin, parity and couplings of the new particle have shown no significant deviations from the predictions for the SM Higgs boson [7,8,9,10]. With the increased center-of-mass energy and higher integrated luminosity of the Run 2 LHC data, the Higgs boson properties can be measured with higher accuracy.

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Notes

  1. 1.

    The uncertainties in Table 9.5 were evaluated with different calibration prescription than the one described in Chap. 7, that are used for the final results.

  2. 2.

    Few values do not completely agree with the one shown in Fig. 9.8 since the tables and the plot refer to different electron and photon energy calibration recommendations.

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  1. Nikhef—National Institute for Subatomic Physics (NL), Amsterdam, The Netherlands

    Stefano Manzoni

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Manzoni, S. (2019). Measurement of the Higgs Boson Mass in the \(H\rightarrow \gamma \gamma \) Channel. In: Physics with Photons Using the ATLAS Run 2 Data. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-24370-8_9

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