PoS - Proceedings of Science
Volume 367 - XXIX International Symposium on Lepton Photon Interactions at High Energies (LeptonPhoton2019) - Parallel Sessions
Searching for resonant HH production at CMS
N. Mc Coll*  on behalf of the CMS Collaboration
Full text: pdf
Pre-published on: October 31, 2019
Published on: December 17, 2019
New, massive bosons could be found with the LHC. Theories with warped extra dimensions and supersymmetry predict the existence of such resonances, which for some model parameters, have a significant branching fraction to two Higgs bosons. Searches for these predicted new resonances decaying to two Higgs bosons with the CMS detector are presented. Jet substructure techniques and lepton identification are used to identify merged Higgs boson decays in the $\mathrm{b}\mathrm{\overline{b}}\mathrm{b}\mathrm{\overline{b}}$, $\mathrm{b}\mathrm{\overline{b}}\tau\tau$, and the $\mathrm{b}\mathrm{\overline{b}}\mathrm{W}\mathrm{W}^*$ final states. Exclusion limits on the product of the cross section and branching fraction for spin-0 and spin-2 resonances with mass $>0.7\mathrm{TeV}$ are shown. The results are based on data collected during Run 2 of the LHC at a centre-of-mass energy of $13\mathrm{TeV}$ and include a statistical combination of the $\mathrm{b}\mathrm{\overline{b}}\mathrm{b}\mathrm{\overline{b}}$ and $\mathrm{b}\mathrm{\overline{b}}\tau\tau$ channels.
DOI: https://doi.org/10.22323/1.367.0104
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