On the radiative corrections to the neutral Higgs boson masses in the NMSSM

Understand

We provide a full one-loop calculation of the self energies and tadpoles of the neutral Higgs bosons of the NMSSM.

• In addition, we compute the two-loop O(alpha_t*alpha_s+alpha_b*alpha_s) corrections to the neutral Higgs boson masses in the effective potential approximation.
• With respect to earlier calculations, the newly-computed corrections can account for shifts of a few GeV in the light scalar and pseudoscalar masses, and they can also sizeably affect the mixing between singlet and MSSM-like Higgs scalars.
• Taking these corrections into account will be crucial for a meaningful comparison between the MSSM and NMSSM predictions for the Higgs sector.