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 √= 13 TeV

the CMS Collaboration, David B Anthony, Jim Brooke, Aaron Bundock, Florian J J Bury, Emyr J Clement, David G Cussans, H. Flächer, Maciej Glowacki, Joel Goldstein, Helen F Heath, Mei-Li Holmberg, Lukasz Kreczko, Sudarshan Paramesvaran, Liam Robertshaw, Sarah A Seif El Nasr, Vincent J Smith, Nicolas Stylianou, Katie L M R Walkingshaw Pass

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

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 13 TeV 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 5 TeV 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 → bbchannel. Compared with previous analyses, the sensitivity for high resonance masses is improved significantly in the channel where at most one b quark is tagged.
Original languageEnglish
Article number89
Number of pages44
JournalJournal of High Energy Physics
Volume2025
DOIs
Publication statusPublished - 13 Feb 2025

Fingerprint

Dive into the research topics of '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 √= 13 TeV'. Together they form a unique fingerprint.

Cite this