W boson polarization as a measure of gauge-Higgs anomalous couplings at the LHC

Abstract

We show how the $W$ boson polarization in the process of associated $W^{\pm }H$ production at the Large Hadron Collider (LHC) can be used to constrain anomalous $WWH$ couplings. We first calculate the spin density matrix for the $W$ to linear order in the anomalous couplings, which are assumed to be small. We then evaluate angular asymmetries in the decay distributions of leptons produced in the decay of the $W$ and show how they can be used to measure the individual elements of the polarization tensor. We estimate the limits that can be placed on the anomalous $WWH$ couplings at a future run of the LHC.

14 pages, Journal Version

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Cited by in corpus (6)

• Anomalous triple gauge boson couplings in $ZZ$ production at the LHC and the role of $Z$ boson polarizations
• Breaking down the entire spectrum of spin correlations of a pair of particles involving fermions and gauge bosons
• Study of anomalous gauge-Higgs couplings using $Z$ boson polarization at LHC
• Probing anomalous gauge-Higgs couplings using $Z$ boson polarization at $e^{+}{e}^{-}$ colliders
• On two-body and three-body spin correlations in leptonic $t\bar{t}Z$ production and anomalous couplings at the LHC
• $CP$-odd form factor in the $HWW$ vertex