Two-loop contributions of the order O α t α s $$ \mathcal{O}\left({\alpha}_t{\alpha}_s\right) $$ to the masses of the Higgs bosons in the CP-violating NMSSM

Supersymmetric extensions of the Standard Model open up the possibility for new types of CP-violation. We consider the case of the Next-to-Minimal Supersymmetric Standard Model where, beyond the phases from the soft lagrangian, CP-violation could enter the Higgs sector directly at tree-level through complex parameters in the superpotential. We develop a series of Fortran subroutines, cast within the public tool NMSSMTools and allowing for a phenomenological analysis of the CP-violating NMSSM. This new tool performs the computation of the masses and couplings of the various new physics states in this model: leading corrections to the sparticle masses are included; the precision for the Higgs masses and couplings reaches the full one-loop and leading two-loop order. The two-body Higgs and top decays are also attended. We use the public tools HiggsBounds and HiggsSignals to test the Higgs sector. Additional subroutines check the viability of the sparticle spectrum in view of LEP-limits and constrain the phases of the model via a confrontation to the experimentally measured Electric Dipole Moments. These tools will be made publicly available in the near future. In this paper, we detail the workings of our code and illustrate its use via a comparison with existing results. We also consider some consequences of CP-violation for the NMSSM Higgs sector.

Section: Jhep06(2015)052mentioning

confidence: 64%

Section: Jhep06(2015)052mentioning

confidence: 76%

“…The chosen approach is that of a diagrammatic calculation. The level of precision has recently been extended to include the dominant two-loop corrections [89].…”

Section: Jhep06(2015)052mentioning

confidence: 99%

“…First, we focus on the results of [89] dealing with CP-violating effects, i.e. essentially figure 6 and the surrounding text in that paper.…”

Section: Jhep06(2015)052mentioning

confidence: 99%

Section: Jhep06(2015)052mentioning

confidence: 99%

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