Analysis of the NMSSM Higgs Boson Masses at One-Loop Level

TL;DR

This paper calculates one-loop corrections to the NMSSM Higgs boson masses using three renormalisation schemes, including the top quark mass dependence, to improve predictions for collider experiments.

Contribution

It introduces two additional renormalisation schemes for NMSSM Higgs mass calculations and compares their effects with the existing $ar{DR}$ scheme.

Findings

Higgs mass corrections are computed in three schemes.

Residual theoretical error estimated at around 10%.

Dependence on the top quark mass is analyzed.

Abstract

For a reliable prediction of the NMSSM Higgs boson signatures at present and future high-energy colliders and a proper distinction of the NMSSM and MSSM Higgs sector the precise knowledge of the Higgs boson masses including higher-order corrections is indispensable. In this paper, the one-loop corrections to the neutral NMSSM Higgs boson masses and mixings are calculated in three different renormalisation schemes. In addition to the $\bar{DR}$ renormalisation scheme, existing in the literature, two other schemes are adopted. Furthermore, the dependence on the value of the top quark mass is investigated. The resulting Higgs mass corrections have been compared and the residual theory error due to missing higher-order corrections can be estimated to be of the order of 10%.