2025/04/10 by Nipun Batra, Batra, Nipun, Baradhwaj Coleppa +7 · 2 citations
Computer Science · Engineering · #FOS: Physical sciences #Fault Detection and Control Systems #High Energy Physics - Phenomenology (hep-ph) #Iterative Learning Control Systems #Neural Networks and Applications
paper · pdf · doi:10.48550/arxiv.2504.07489
openalex publication_date 2025/04/10 · openalex created_date 2025/10/14 · openalex updated_date 2026/07/28
One of the standard ways to study scenarios beyond the Standard Model involves extending the Higgs Sector. This work examines the Three Higgs Doublet Model (3HDM) in a Type-Z or democratic setup, where each Higgs doublet couples exclusively to a specific type of fermion. The particle spectrum of the 3HDM includes four charged Higgs bosons, two CP-odd scalars, and three CP-even scalars. This work investigates the allowed mass and coupling parameter space in the Type-Z 3HDM after imposing all theoretical and experimental constraints. We extract the allowed parameter space under three distinct alignment-limit conditions or mass hierarchies leveraging machine learning techniques. Specifically, we analyze scenarios where the 125 GeV Higgs is the lightest, an intermediary, or the heaviest CP-even Higgs boson. Our findings indicate that while a single lighter CP-even Higgs boson below 125 GeV still remains a possibility, the presence of two lighter Higgses is ruled out.