Rare Higgs three body decay induced by top-Higgs FCNC coupling in the littlest Higgs Model with T-parity

TL;DR

This paper investigates a rare Higgs decay process induced by top-Higgs flavor-changing neutral currents within the littlest Higgs model with T-parity, providing predictions for its branching ratio at the LHC.

Contribution

It calculates the branching ratio of the rare decay $H ightarrow Wbc$ in the LHT model, highlighting potential observability at the LHC.

Findings

Branching ratio can reach $ ext{O}(10^{-7})$ in the allowed parameter space.

The decay process is significantly influenced by top-Higgs FCNC couplings.

Provides theoretical predictions relevant for experimental searches at the LHC.

Abstract

Motivated by the search for flavor-changing neutral current (FCNC) top quark decays at the LHC, we calculate rare Higgs three body decay $H\rightarrow Wbc$ induced by top-Higgs FCNC coupling in the littlest Higgs model with T-parity(LHT). We find that the branching ratios of $H\rightarrow Wbc$ in the LHT model can reach $\mathcal O(10^{-7})$ in the allowed parameter space.