Search for a heavy resonance decaying into a Z and a Higgs boson in events with an energetic jet and two electrons, two muons, or missing transverse momentum in proton-proton collisions at √<i>s</i>=13 TeV
Creators
- 1. Yerevan Phys Inst, Yerevan, Armenia
- 2. Yerevan State Univ, Yerevan, Armenia
- 3. Inst Hochenergiephys, Vienna, Austria
Description
A search is presented for a heavy resonance decaying into a Z boson and a Higgs (H) boson. The analysis is based on data from proton-proton collisions at a centre-of-mass energy of 13TeV corresponding to an integrated luminosity of 138 fb(-1), recorded with the CMS experiment in the years 2016-2018. Resonance masses between 1.4 and 5TeV are considered, resulting in large transverse momenta of the Z and H bosons. Final states that result from Z boson decays to pairs of electrons, muons, or neutrinos are considered. The H boson is reconstructed as a single large-radius jet, recoiling against the Z boson. Machine-learning flavour-tagging techniques are employed to identify decays of a Lorentz-boosted H boson into pairs of charm or bottom quarks, or into four quarks via the intermediate H -> WW* and ZZ* decays. The analysis targets H boson decays that were not generally included in previous searches using the H -> b (b) over bar channel. Compared with previous analyses, the sensitivity for high resonance masses is improved significantly in the channel where at most one b quark is tagged.
Files
bib-27a25c2f-07b6-4c05-92f1-47145fec55ed.txt
Files
(543 Bytes)
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