The mass of a dark matter WIMP derived from the Hubble constant conflict  

作　　者：John Baruch 

机构地区：[1]Tsinghua University,Room B573 Lqe Shaukee Science and Technology Building,Haidian District,Beijing 100084,China [2]Leeds Beckett University,Old Broadcasting House,Woodhouse Lane,Leeds LS2-9EN

出　　处：《Research in Astronomy and Astrophysics》2020年第9期159-163,共5页天文和天体物理学研究（英文版）

基　　金：the support given by the Fred Hoyle Cosmology Club。

摘　　要：There continues to be good reason to believe that dark matter particles,which only"feel"the gravitational force,influence the local and distant Universe,despite drawing a complete blank in the search for such a particle.The expansion rate of the Universe is defined by the Hubble constant h.Measurements of the Hubble constant at different wavelengths produce different results,differing well beyond their errors.Here it is shown that the two precise but different values for the Hubble constant can be used to derive the mass of a weakly interacting massive particle(WIMP).An approximate mass of 1022 eV is determined with indications of why,so far,it has not been found and what is required to get positive confirmation of its presence.This result also indicates that the Hubble constant is the sum of more than one contribution with suggestions for experimental tests to determine,more precisely,the level of these contributions.

关 键 词：cosmology:theory cosmology:dark matter cosmology:cosmic background radiation 

分 类 号：P145.9[天文地球—天体物理]