Cosmic domain walls are harmless, provided that their tension decreases with expansion of the Universe. This setup can be realized, if scale spontaneous symmetry breaking is induced dynamically through interaction hot primordial plasma. In case, wall attain large values in early Universe without any conflict observations. Owing to initial tension, these topological defects may serve as a powerf...

Abstract The Shanghai High repetition rate XFEL and Extreme Light Facility (SHINE), an advanced project, is now being built at Advanced Research Institute (SARI), Chinese Academy of Sciences. It includes a hard X-ray free electron laser 100 pW intense facilities with overall length 3.1 km. part including 8 GeV LINAC 3 undulator lines cooled forced superfluid supercritical helium 2 K/4 K. cryoge...