Study of ZZ and ZH production in the bbττ final state and search for high-mass spin-0 and spin-1 resonances in proton-proton collisions at √s = 13 TeV
Abstract
A study of the production of pairs of Z bosons (ZZ) and of the associated production of a Z boson and a Higgs boson (ZH) in final states containing two b quarks and two tau leptons (bbττ) is presented. The analysis is based on proton-proton collisions collected at √s = 13 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb−1. The nonresonant analysis targets the standard model ZZ and ZH processes in the bbττ final state, motivated by the prominent role of this channel in searches for nonresonant Higgs boson pair production. The resonant searches target physics beyond the standard model, probing heavy spin-0 resonances X that decay into ZZ and spin-1 resonances Z' that decay into ZH, with masses in the 0.2−5 and 0.5−6 TeV ranges, respectively. Upper limits at 95% confidence level are set on the product of production rate and branching fraction σ(X)ℬ(X → ZZ), ranging from 300 pb to 24 fb, and σ(Z')ℬ(Z' → ZH), ranging from 0.4 pb to 12 fb. These are the first measurements to probe the ZZ/ZH → bbττ processes. No deviation from standard model expectations is observed.
Related
- Search for resonant and nonresonant production of pairs of dijet resonances with b jets in the final state in proton-proton collisions at √s = 13 TeV
- Search for anomalous couplings in WW and WZ production with single-lepton final states in proton-proton collisions at √s = 13 TeV
- Search for nonresonant triple Higgs boson production in the final state with six bottom quarks in proton-proton collisions at √s = 13 TeV
- Search for single vector-like quark production in opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV
- Search for supersymmetric particle pair production in final states with two oppositely charged leptons and large missing transverse momentum in proton-proton collisions at √s = 13 TeV
BibTeX
@misc{collaboration2026study,
title = {{Study of ZZ and ZH production in the bb$ττ$ final state and search for high-mass spin-0 and spin-1 resonances in proton-proton collisions at $\sqrts$ = 13 TeV}},
author = {CMS Collaboration},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2607.01589},
eprint = {2607.01589},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.01589},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Study of ZZ and ZH production in the bbττ final state and search for high-mass spin-0 and spin-1 resonances in proton-proton collisions at √s = 13 TeV
AU - CMS Collaboration
PY - 2026
DA - 2026/09/21
PB - arXiv
DO - 10.48550/arxiv.2607.01589
UR - https://arxiv.org/abs/2607.01589
AB - A study of the production of pairs of Z bosons (ZZ) and of the associated production of a Z boson and a Higgs boson (ZH) in final states containing two b quarks and two tau leptons (bbττ) is presented. The analysis is based on proton-proton collisions collected at √s = 13 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb^−1. The nonresonant analysis targets the standard model ZZ and ZH processes in the bbττ final state, motivated by the prominent role of this channel in searches for nonresonant Higgs boson pair production. The resonant searches target physics beyond the standard model, probing heavy spin-0 resonances X that decay into ZZ and spin-1 resonances Z' that decay into ZH, with masses in the 0.2−5 and 0.5−6 TeV ranges, respectively. Upper limits at 95% confidence level are set on the product of production rate and branching fraction σ(X)ℬ(X → ZZ), ranging from 300 pb to 24 fb, and σ(Z')ℬ(Z' → ZH), ranging from 0.4 pb to 12 fb. These are the first measurements to probe the ZZ/ZH → bbττ processes. No deviation from standard model expectations is observed.
ER -