Journal
PHYSICAL REVIEW D
Volume 97, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.97.095017
Keywords
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Funding
- Moore-Sloan Data Science Environment at New York University
- National Science Foundation [PHY-1620638]
- DFG Forschergruppe New Physics at the LHC [FOR 2239]
- state of Baden-Wurttemberg through bwHPC
- Direct For Mathematical & Physical Scien
- Division Of Physics [1620638] Funding Source: National Science Foundation
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Measuring the CP symmetry in the Higgs sector is one of the key tasks of the LHC and a crucial ingredient for precision studies, for example in the language of effective Lagrangians. We systematically analyze which LHC signatures offer dedicated CP measurements in the Higgs-gauge sector and discuss the nature of the information they provide. Based on the Fisher information measure, we compare the maximal reach for CP-violating effects in weak boson fusion, associated ZH production, and Higgs decays into four leptons. We find a subtle balance between more theory-independent approaches and more powerful analysis channels, indicating that rigorous evidence for CP violation in the Higgs-gauge sector will likely require a multistep process.
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