Speaker
Description
In this study, we investigate the constraints imposed on the Doublet Left-Right Symmetric Model (DLRSM) by the latest experimental data on the Higgs boson. While most previous studies have assumed small values for the ratios $r=\kappa_2/\kappa_1$ and $w=v_L/\kappa_1$, we consider the most general scalar potential and explore the constraints on $r$ and $w$. Through our analysis, we calculate the masses of the CP-even scalars and their couplings to W and Z gauge bosons and third generation quarks. Our results show that there is no lower bound on either $r$ or $w$, but equating the mass of the lightest CP-even scalar to 125 GeV yields an upper limit of $w$ < 6.7. Additionally, we find that the perturbativity of the Yukawa coupling of the quarks to the Higgs bidoublet sets the upper bounds $r$ < 0.8 and $w$ < 3.5. Our analysis of the Yukawa coupling of the bottom quark to the lightest CP-even scalar strongly disfavors values of $r$ and $w$ < 0.1 and indicates a preference for values of $w$ ~ O(1). Our findings provide important insights into the validity of the DLRSM in the current theoretical and experimental framework.
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