/ hep-ex CMS-HIG-14-035

Combined search for anomalous pseudoscalar HVV couplings in VH production and H to VV decay

Pages: 36

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 $\rightarrow$ VV channels. Assuming the standard model ratio of the coupling strengths of the Higgs boson to top and bottom quarks, $f_{a_3}^{\mathrm{ZZ}}>0.0034$ is excluded at 95% confidence level in the combination.

Note: Submitted to Phys. Lett. B

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Запись создана 2016-03-11, последняя модификация 2016-03-11

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