Neutral Higgs bosons in the MNMSSM with explicit CP violation

TL;DR

This paper investigates explicit CP violation effects in the Higgs sector of the MNMSSM at one-loop level, analyzing how radiative corrections from third-generation quarks and squarks influence Higgs boson properties and decay behaviors.

Contribution

It introduces a detailed analysis of CP violation in the MNMSSM Higgs sector caused by non-degenerate squark masses and radiative corrections, providing new insights into Higgs boson mass spectra and decay channels.

Findings

CP phases significantly affect Higgs masses and decay widths.

Explicit CP violation alters dominant decay channel branching ratios.

Radiative corrections from third-generation squarks are crucial for CP violation effects.

Abstract

Within the framework of the minimal non-minimal supersymmetric standard model (MNMSSM) with tadpole terms, CP violation effects in the Higgs sector are investigated at the one-loop level, where the radiative corrections from the loops of the quark and squarks of the third generation are taken into account. Assuming that the squark masses are not degenerate, the radiative corrections due to the stop and sbottom quarks give rise to CP phases, which trigger the CP violation explicitly in the Higgs sector of the MNMSSM. The masses, the branching ratios for dominant decay channels, and the total decay widths of the five neutral Higgs bosons in the MNMSSM are calculated in the presence of the explicit CP violation. The dependence of these quantities on the CP phases is quite recognizable, for given parameter values.