Since the discovery of quasars more than half a century ago, measuring their distances has always been a fundamental problem for cosmology. Recently, a team led by Professor WANG Jianmin from the Institute of High Energy Physics of the Chinese Academy of Sciences (CAS) used a new geometric method developed by the team to successfully measure the cosmological distance to the first identified quasar 3C 273.
The method uses observations with extremely high angular resolution, which can only be achieved by an interferometer surmounting the Rayleigh diffraction limit. It represents a new way...
The white paper presents a detailed survey of important topics in tau-charm physics and hadron physics that BESIII expects to explore over BEPCII's remaining operating life.
The survey will aid optimization of BESIII's data-taking plan over the next few years and provide a physics-based rationale for the possible upgrade of BEPCII to higher luminosity."> The BESIII Collaboration officially released a draft version of its White Paper on the Future Physics Programme of BESIII ("white paper") at arXiv.org...
Jan 07, 2020
Dec 09, 2019
Source: Global Times
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