# Combined search for anomalous pseudoscalar HVV couplings in VH(H → $b\overline{b}$) production and H → VV decay

CMS Collaboration; Canelli, F; Chiochia, V; Kilminster, B; Robmann, P; et al (2016). Combined search for anomalous pseudoscalar HVV couplings in VH(H → $b\overline{b}$) production and H → VV decay. Physics Letters B, 759:672-696.

## Abstract

A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V ( =W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb$^{−1}$ at a center-of-mass energy of 8 TeV is presented. Events consistent with the topology of associated VH production, where the Higgs boson decays to a pair of bottom quarks and the vector boson decays leptonically, are analyzed. The consistency of data with a potential pseudoscalar contribution to the HVV interaction, expressed by the effective pseudoscalar cross section fractions $f_{a_{3}}$, is assessed by means of profile likelihood scans. Results are given for the VH channels alone and for a combined analysis of the VH and previously published H→VV channels. Under certain assumptions, $f_{a_{3}}^{ZZ}$>0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered.

## Abstract

A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V ( =W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb$^{−1}$ at a center-of-mass energy of 8 TeV is presented. Events consistent with the topology of associated VH production, where the Higgs boson decays to a pair of bottom quarks and the vector boson decays leptonically, are analyzed. The consistency of data with a potential pseudoscalar contribution to the HVV interaction, expressed by the effective pseudoscalar cross section fractions $f_{a_{3}}$, is assessed by means of profile likelihood scans. Results are given for the VH channels alone and for a combined analysis of the VH and previously published H→VV channels. Under certain assumptions, $f_{a_{3}}^{ZZ}$>0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered.

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