Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-11-21
Physics
High Energy Physics
High Energy Physics - Phenomenology
35 pages
Scientific paper
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%.
Ender K.
Graf Tanja
Muhlleitner Margarete M.
Rzehak Heidi
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