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Physics Letters B

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 inverse femtobarns 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[a3], 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 to VV channels. Under certain assumptions, f[a3](ZZ) > 0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered.

Combined search for anomalous pseudoscalar HVV couplings in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mrow><mml:mi mathvariant="normal">VH</mml:mi></mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi mathvariant="normal">H</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi mathvariant="normal">b</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi mathvariant="normal">b</mml:mi></mml:mrow><mml:mo>‾</mml:mo></mml:mover><mml:mo stretchy="false…

Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾V. Khachatryan77, A. M. Sirunyan60, ..., N. Woods72View all 2254 authors

Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾
V. Khachatryan
77
,
A. M. Sirunyan
60
,
..., N. Woods
72