Cosmological model-independent test of $\Lambda$CDM with two-point diagnostic by the observational Hubble parameter data

Shu-Lei Cao, Xiao-Wei Duan, Xiao-Lei Meng +1

Aiming at exploring the nature of dark energy (DE), we use forty-three observational Hubble parameter data (OHD) in the redshift range $0<z⩽2.36$ to make a cosmological…