W boson polarization as a measure of gauge-Higgs anomalous couplings at the LHC
We show how the W boson polarization in the process of associated W±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 the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-03-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321319300100 |
| Summary: | We show how the W boson polarization in the process of associated W±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. |
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| ISSN: | 0550-3213 |