The Heavy Higgs Decay Effect and Its Impact on Higgs Data Fitting in NMSSM

TL;DR

This paper investigates how heavy Higgs decays influence Higgs data fitting in the NMSSM, highlighting the importance of including these effects for accurate analysis and potential Higgs sector searches.

Contribution

It introduces the heavy Higgs decay effects into Higgs data fitting in NMSSM and demonstrates their significance for accurate Higgs property analysis.

Findings

Heavy Higgs decays significantly affect Higgs data fitting.

Including decay effects improves the accuracy of Higgs property measurements.

Certain decay channels are promising for NMSSM Higgs searches.

Abstract

Besides the loop contribution and the coupling changing, heavy Higgs decaying to 125GeV Higgs is another important effect in Higgs property measurement in the models that have extend Higgs sector. Such heavy Higgs decay effect contain more than one sources, such as $A\rightarrow Zh$, $H\rightarrow hh$, $A_2\rightarrow A_1h$, and $H_3\rightarrow H_1H_2$. Some of them will be promising in NMSSM Higgs sector searching. Higgs data fitting is performed with and without this heavy Higgs decay effect being included, and the final result demonstrate such effect is very important in Higgs data fitting if the signal efficiency is large.