Search for nonresonant Higgs boson pair production in the 4 leptons plus 2 b jets final state in proton-proton collisions at s=\sqrt{s} = 13 TeV

Collaboration
2020
16 pages
  • Published: 2020
Report number:
  • CMS-PAS-HIG-20-004,
  • CMS-PAS-HIG-20-004
Experiments:

Citations per year

202120222023351
Abstract: (CDS)
A search for nonresonant pair-production of Higgs bosons (HH) with one Higgs boson decaying into four leptons and the other into a pair of b quarks is presented. The analyzed data correspond to an integrated luminosity of 137 fb1\text{fb}^{-1} of proton-proton collisions at s=13 TeV\sqrt{s} = 13~\text{TeV} collected with the CMS detector during the years 2016 to 2018. An upper limit of 30 at 95%\% confidence level (CL) is set on the signal strength modifier μ\mu, defined as the ratio of the observed double-Higgs boson production rate in the HHZZbbˉ4bbˉ\text{HH} \rightarrow ZZ^{*}b\bar{b} \rightarrow 4\ell b\bar{b} decay channel to the standard model (SM) expectation. Possible modifications of the SM Higgs trilinear coupling are investigated and constrained to be within the observed (expected) range 9(10.5)<kλ<14(15.5)-9 (-10.5) < k_{\lambda} < 14 (15.5) at 95%\% CL.
Note:
  • Preliminary results
  • Preliminary results
  • Monte-Carlo
  • p p: colliding beams
  • Higgs particle: pair production
  • p p: scattering
  • Higgs particle: decay modes
  • Z0: pair production
  • Z0: leptonic decay
  • Higgs particle: hadronic decay
  • bottom: pair production
  • bottom: particle identification