| Article | |
| Report number | arXiv:2409.16731 ; COMETA-2024-24 ; MPP-2024-183 ; TIF-UNIMI-2024-15 |
| Title | From angular coefficients to quantum observables: a phenomenological appraisal in di-boson systems |
| Author(s) | Grossi, Michele (CERN) ; Pelliccioli, Giovanni (Garching, Max Planck Inst.) ; Vicini, Alessandro (Milan U.) |
| Publication | 2024-12-17 |
| Imprint | 2024-09-25 |
| Number of pages | 30 |
| In: | JHEP 2412 (2024) 120 |
| DOI | 10.1007/JHEP12(2024)120 |
| Subject category | quant-ph ; General Theoretical Physics ; hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | Motivated by the growing interest in accessing the spin structure of multi-boson processes and in measuring quantum entanglement at high energies, we study polarisation and spin-correlation coefficients in di-boson systems. We show that higher-order corrections of QCD and electroweak type, off-shell modelling, and realistic effects such as fiducial selections and neutrino reconstruction are unavoidable to properly determine such coefficients, and consequently to provide a sound interpretation of observables sensitive to quantum entanglement and Bell-inequality violation. Our findings are based on a detailed phenomenological analysis of boson pairs at the LHC, either in inclusive electroweak production or coming from Higgs-boson decays. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2024-2025 The Authors (License: CC-BY-4.0), sponsored by SCOAP³ |
Corresponding record in: Inspire
記錄創建於2024-10-09，最後更新在2025-01-23
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