The study of the extended Higgs boson sector within 2HDM model

TL;DR

This paper models the properties and production mechanisms of extended Higgs bosons within the 2HDM framework using latest LHC data, highlighting the importance of b-associated production at high tanβ and analyzing decay kinematics.

Contribution

It provides detailed computational modeling of Higgs boson production and decay in the 2HDM, incorporating experimental constraints and emphasizing the significance of b-associated production at large tanβ.

Findings

b-associated production is crucial at large tanβ

Differential cross sections reveal decay kinematic features

Modeling aligns with latest LHC experimental data

Abstract

Consideration of the latest experimental data on the searches for extended sector of Higgs bosons produced at the LHC at a center-of-mass energy of 13 TeV, allows for computer modeling of the properties of supersymmetric particles within 2HDM model. The experimental restrictions on model parameters accounted in FeynHiggs code that is implemented in SusHi program, gave us the possibility to calculate the cross sections and branching fractions for three mechanisms of production and decay of Higgs bosons: 1) pp$\rightarrow H\rightarrow\tau\tau$, 2) pp$\rightarrow A\rightarrow Zh\rightarrow llbb$, 3) pp$\rightarrow H\rightarrow hh\rightarrow bb\tau\tau$ at a center-of-mass energy of 14 TeV. The considered computer modelling make it possible to draw conclusions about the need to take into account the b-associated production process of Higgs bosons for fermionic decay channel at large values of tan$\beta$. Differential cross sections with respect to the Higgs transverse momentum $p_t$ and pseudorapidity $\eta$ are calculated and the peculiarities of the kinematics of the Higgs boson decay products are recognized.