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W and Z Polarization Effects in Hadronic Collisions

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arxiv hep-ph/9406381 v1 pith:ZLENQNZG submitted 1994-06-23 hep-ph

E. Mirkes , J.Ohnemus This is my paper · ORCID
classification hep-ph
keywords effectsdistributionspolarizationangularbosonleptoncutsgauge
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

A Monte Carlo study of the polar and azimuthal angular distributions of the lepton pair arising from the decay of a $W$ or $Z$ boson produced at high transverse momentum in hadronic collisions is presented. In the absence of cuts on the final state leptons, the lepton angular distribution in the gauge boson rest frame is determined by the gauge boson polarization. Numerical results for the lepton angular distributions in the Collins--Soper frame with acceptance cuts and energy resolution smearing applied to the leptons are presented. In the presence of cuts, the lepton angular distributions are dominated by kinematic effects rather than polarization effects, however, some polarization effects are still observable on top of the kinematic effects. Polarization effects are highlighted when the experimental distributions are divided by the Monte Carlo distributions obtained using isotropic gauge boson decay.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Measurement of the $W$-boson angular coefficients and transverse momentum in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector

    hep-ex 2025-09 accept novelty 5.0 of 10

    ATLAS reports the first measurement of the complete angular coefficients and pT-differential cross sections for W+ and W- bosons in full lepton phase space at 13 TeV, finding agreement with QCD predictions up to order α_S².

  2. Dilepton angular distributions in the color-dipole $S$-matrix framework

    hep-ph 2025-07 conditional novelty 5.0 of 10

    First derivation of Z and W helicity density matrix elements in the color-dipole S-matrix framework, with forward-rapidity predictions at 14 TeV linking the Lam-Tung violation to the UGD tail.

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