CP-Violation in the 3-Higgs Doublet Model: CP-Asymmetries from Charged Higgs Bosons and Electric Dipole Moments

Abstract

We propose a CP-violating source in the charged Higgs sector of a 3-Higgs Doublet Model (3HDM) that will contribute to three CP-asymmetry observables for low energy processes. In the context of such a 3HDM, a measurement of one of the specific asymmetry observables (i.e., $\bar{B}\to X_{s+d}\gamma$) could obtain up to 2.5% or more, which would give a 5$\sigma$ evidence for physics Beyond the SM (BSM) from the full BELLE II data set. In addition to these CP-violating observables, the current measurements of Electron Dipole Moments (EDMs) constrain the available parameter region of the CP-violating 3HDM. In this work, we perform a thorough analysis of the parameter space of it to find the regions that satisfy EDMs, $\bar{B}\to X_s\gamma$, direct collider searches for charged Higgs bosons as well as theoretical bounds.

arXiv comment30 pages, 45 figures, references added, "Status of Charged Higgs Searches at the LHC and Physics Prospects for the Charged Higgs at HL-LHC", 30-31 August 2021, proceeding to "Symmetry, Collider Phenomenology and High Energy Physics" of Symmetry MDPI, drawn from arXiv: 2012.08846 and 2009.05779

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