DESI data and refinement of standard recombination theory help solve the Hubble tension problem

The values of the Hubble constant obtained from the data of the early and of the late Universe differ by 10%. Data obtained by DESI Collaboration can help solve this problem, establishing with high precision the value of the product of the Hubble constant h and comoving of sound horizon at the end of drag epoch to be equal to 101.8 Mpc. This value agrees very well with the earlier refinement of the standard recombination theory and the value of the Hubble constant H0=73.5 km/s/Mpc obtained from measurements in the late Universe.