Programme

P.62 -- Poster, VCTP-49

Date: Friday, 2 August 2024

Time: 08:30 - 10:00

Vacuum stability using Vector like Quarks (VLQ)

Aman Verma

Department of Physics University of Rajasthan, Jaipur

We consider the Standard model extenstion by vector-like quarks and investigate the Higgs potential's vacuum stability in the presence of several vector-like quarks. Since their masses are not produced by the Higgs mechanism, vector-like quarks can have any mass in the Lagrangian and have the same coupling for both left and right handed components. We have selected seven vector-like quark representations and analyzed the contribution to renormalized group equations to gauge, yukawa and Higgs quartic coupling. Since the introduction of new vector-like quarks will alter the direction of the Higgs quartic coupling, we have examined the impact of RGE running on the vacuum stability of Higgs. We also verify the number of vector-like quark copies needed in each scenario to attain the vacuum stability of the Higgs potential.

Presenter: Aman Verma