3–5 Dec 2025
CERN
Europe/Zurich timezone

V-associated production & vector boson fusion of Higgs bosons as an LHC signature of CP violation (12'+3')

4 Dec 2025, 11:45
15m
40/R-D10 (CERN)

40/R-D10

CERN

20
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Speaker

Alvaro Lozano Onrubia (IFT UAM-CSIC)

Description

Many well-motivated extensions of the Standard Model predict new, entirely bosonic sources of CP violation (CPV). In these scenarios, the simultaneous observation of carefully selected bosonic processes emerges as a simple yet powerful method to unambiguously reveal the presence of CPV. The present study, which establishes a promising framework of CPV searches for the upcoming HL-LHC era, showcases this method by exploring the detectability of such generic CPV signatures within the economical Complex Two-Higgs Doublet Model (C2HDM). Specifically, we assess the observation prospects for viable combinations of gluon fusion, vector boson fusion and V-associated production processes which unequivocally signal the existence of CP-violating couplings within the bosonic spectrum of the model.

Based on arXiv:2507.05942.

Presentation materials