https://doi.org/10.1140/epjc/s10052-018-6358-z
Regular Article - Theoretical Physics
Gravity lens critical test for gravity constants and dark sector
1
Center for Cosmology and Astrophysics, Alikhanian National Laboratory and Yerevan State University, Yerevan, Armenia
2
SIA, Sapienza Universita di Roma, Rome, Italy
* e-mail: gurzadyan@yerphi.am
Received:
14
August
2018
Accepted:
18
October
2018
Published online:
27
October
2018
The recent study of the strong gravitational lens ESO 325-G004 (Collett et al., Science, 360:1342, 2018) leads to a new possibility for testing General Relativity and its extensions. Such gravity lens observational studies can be instrumental for establishing a limitation on the precision of testing General Relativity in the weak-field regime and on the two gravity constants (the Newtonian and cosmological ones) as described in Gurzadyan and Stepanian (Eur Phys J C 78:632 2018). Namely, we predict a critical value for the involved weak-field parameter 
(for 
lens mass and 
light impact distance), which remarkably does not depend on any hypothetical variable but is determined only by well measured quantities. If the critical parameter 
will be established at future observations, this will mark the first discrepancy with General Relativity of the conventional weak-field Newtonian limit, directly linked to the nature of the dark sector of the Universe.
© The Author(s), 2018
