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arXiv · 2009.00980

Study of anomalous gauge-Higgs couplings using $Z$ boson polarization at LHC

Kumar Rao·Saurabh D. Rindani·Priyanka Sarmah
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Abstract

We estimate model-independent bounds that could be obtained on the anomalous $ZZH$ vertex using polarization parameters of the $Z$ boson produced in the Higgstrahlung process at the LHC. We calculate the eight independent polarization parameters from the spin density matrix elements of the $Z$, which can probe underlying new physics contributions to $ZH$ production. By using the approach that connects these polarization observables to the coefficients in the angular distribution of the decay products of the $Z$, we estimate the limits on the anomalous $ZZH$ coupling that can be obtained at the 14 TeV LHC.

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Kumar Rao, Saurabh D. Rindani, Priyanka Sarmah. 2020-09-01. Study of anomalous gauge-Higgs couplings using $Z$ boson polarization at LHC. https://doi.org/10.1016/j.nuclphysb.2021.115317

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