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Analytical Insights on Hadronic Top Quark Polarimetry

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arxiv 2407.07147 v1 pith:USBS5RZR submitted 2024-07-09 hep-ph hep-ex

Zhongtian Dong , Dorival Gonçalves , Kyoungchul Kong , Andrew J. Larkoski , Alberto Navarro This is my paper
classification hep-phhep-ex
keywords quarkspinanalyticaldecayhadronicinsightspolarimetrypolarization
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abstract

Top quark polarization provides an important tool for studying its production mechanisms, spin correlations, top quark properties, and new physics searches. Unlike lighter quarks, the top quark's polarization remains intact until its decay, enabling precise spin measurements. While the down-type fermions from $W$ boson decay are known to be effective spin analyzers, charged leptons have typically been the main target for most analyses. In this paper, we investigate the relevance of global jet dynamics -- considering kinematics, jet charges, and particle multiplicity -- for hadronic top quark polarimetry. The formalism used allows for analytical derivations obtained throughout the manuscript, offering deeper insights into the corresponding phenomenology.

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Cited by 3 Pith papers

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

  1. Experimental prospects for quantum decoherence measurements at colliders

    hep-ph 2026-04 unverdicted novelty 6.0 of 10

    Hard final-state radiation measurably destroys the spin entanglement of fermion-antifermion pairs, and the effect should already be visible in LHC ttbar+jet and Belle II tau+tau-gamma data.

  2. Quantum Tomography and Entanglement in Semi-Leptonic $h\to VV^*$ Decays at Higher Orders

    hep-ph 2026-04 unverdicted novelty 6.0 of 10

    Semi-leptonic h→VV* decays retain an effective two-qutrit quantum description under NLO QCD and electroweak corrections, unlike the fully leptonic h→4ℓ channel.

  3. Colliders are Testing neither Locality via Bell's Inequality nor Entanglement versus Non-Entanglement

    hep-ph 2025-07 conditional novelty 4.0 of 10

    Collider measurements of final-state momenta alone cannot certify Bell nonlocality or entanglement, because the measured angular distribution is itself a local hidden variable model.

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