2016/05/31 by Saurabh D. Rindani, Pankaj Sharma, Ambresh Shivaji · 1 citation
Physics and Astronomy · #Asymmetry #Azimuth #Electron #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Lepton #Nuclear physics #Observable #Optics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Polarization (electrochemistry) #Quantum mechanics #Yukawa potential #hep-ph
paper · pdf · doi:10.1016/j.physletb.2016.08.002
published as Phys.Lett. B761 (2016) 25-30 · 8 pages, 6 figures, Matches Published Version in Phys. Lett. B
openalex publication_date 2016/08/05 · arxiv created 2016/08/15 · arxiv updated 2016/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the sensitivity of top polarization observables to the CP phase ζt in the top Yukawa coupling in the process pp→thj at the 14 TeV high-luminosity run of the Large Hadron Collider (HL-LHC). We calculate the top polarization in this process as well as an azimuthal asymmetry of the charged lepton arising from the decay of the top in the lab frame. We find that the dependence of this lab-frame azimuthal asymmetry on the phase ζt closely resembles the dependence of the top polarization on ζt. As compared to the cross section, which is sensitive to ζt for larger values, the lepton azimuthal asymmetry can provide a sensitive measurement of ζt for smaller values.