PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - Joint T03+T10 Dark Matter + Searches for New Physics
Exploring Constraints on the Doublet Left-Right Symmetric Model Using Higgs Data
A.K. Pradhan*, S. Karmakar, J. More and S.U. Sankar
Full text: pdf
Pre-published on: January 24, 2024
Published on: March 21, 2024
In this work, we examine the constraints imposed on the doublet left-right symmetric model (DLRSM) by analyzing Higgs data from LHC. Specifically, we investigate the key parameters of the model, denoted as the ratios $r=\kappa_2/\kappa_1$ and $w=v_L/\kappa_1$. While previous research assumed these ratios to be very small, we find that there is no lower bound on either $r$ or $w$ and the upper bound is set by the perturbative requirement of Yukawa couplings . Notably, the Yukawa coupling of the bottom quark to the lightest CP-even scalar not only discourages the selection of small $r$ values but also implies a preference for $w$ values approximately around $O(1)$. These values are also favored by the indirect constraint on the mass of heavy CP-even scalars.
DOI: https://doi.org/10.22323/1.449.0052
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