Constrained dark energy models in Weyl-type f(Q,T) gravity

In this paper, we construct dark energy models in the Weyl-type f(Q,T) gravity using the constrained dark energy equation of state (EoS) omega(de) = -1 with observational constraints. We find an analytical solution of the field equations. We estimate the present values of model parameters H-0, Omega(m0), Omega(Lambda 0), alpha, beta, m and lambda, using observational data of Hubble parameter from cosmic chronometer (CC) and apparent magnitude from Pantheon sample of SNe Ia datasets. Using these estimated values of model parameters, we investigate the model's physical characteristics through effective EoS parameter omega(eff), deceleration parameter q(z). We estimate the transition redshift z(t) <= 0.856 and the present age of the universe t(0) approximate to 13.72(-0.69)(+0.76) Gyrs with H-0 = 69.1 +/- 1.9 km/s/Mpc, Omega(m0)approximate to 0.342(-0.088)(+0.066), omega(eff)approximate to-0.69.