Ferreira F, Fuks B, Sanz V, Sengupta D. Probing
CP -violating Higgs and gauge-boson couplings in the Standard Model effective field theory.
Eur Phys J C Part Fields 2017;
77:675. [PMID:
31997921 PMCID:
PMC6956952 DOI:
10.1140/epjc/s10052-017-5226-6]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 09/16/2017] [Indexed: 06/10/2023]
Abstract
We study the phenomenological consequences of several CP-violating structures that could arise in the Standard Model effective field theory framework. Focusing on operators involving electroweak gauge and/or Higgs bosons, we derive constraints originating from Run I LHC data. We then study the capabilities of the present and future LHC runs at higher energies to further probe associated CP-violating phenomena and we demonstrate how differential information can play a key role. We consider both traditional four-lepton probes of CP-violation in the Higgs sector and novel new physics handles based on varied angular and non-angular observables.
Collapse