Higgs-mass prediction in the NMSSM with heavy BSM particles

We address the prediction for the mass of the SM-like Higgs boson in NMSSM scenarios where all BSM particles, including the singlets, have masses at the TeV scale. We provide a full one-loop computation of the matching condition for the quartic Higgs coupling in the NMSSM, supplemented with the two-loop contributions that involve the strong gauge coupling. We discuss the impact of the one- and two-loop corrections that are specific to the NMSSM on the prediction for the Higgs mass, and propose a method to estimate of the uncertainty associated with the uncomputed higher-order terms. Finally, we illustrate how the measured value of the Higgs mass can be used to constrain some yet-unmeasured parameters of the NMSSM.

Automated summary

This study addresses the prediction for the mass of the SM-like Higgs boson in NMSSM scenarios, taking into account the masses of all BSM particles at the TeV scale. The authors provide a full one-loop computation of the matching condition for the quartic Higgs coupling in the NMSSM, along with two-loop contributions involving the strong gauge coupling. They discuss the impact of one- and two-loop corrections specific to the NMSSM on the prediction for the Higgs mass, and propose a method to estimate the uncertainty associated with uncomputed higher-order terms. Finally, they illustrate how the measured value of the Higgs mass can be used to constrain some yet-unmeasured parameters of the NMSSM.