4 papers
Féeton ( Gauge Boson) Dark Matter Testable in Future Direct Detection Experiments
Yu Cheng, Jie Sheng, Tsutomu T. Yanagida
In this paper, we revisit the féeton (gauge boson of symmetry) dark matter scenario, and first point out the gauge symmetry can be a linear combination of the…
Proposal for a Quantum Mechanical Test of Gravity at Millimeter Scale
Yu Cheng, Jiadu Lin, Jie Sheng +1
The experimental verification of the Newton law of gravity at small scales has been a longstanding challenge. Recently, torsion balance experiments have successfully measured gravi…
Detecting a Fifth-Force Gauge Boson via Superconducting Josephson Junctions
Yu Cheng, Jie Sheng, Tsutomu T. Yanagida
A new fifth force between particles carrying charges is well-motivated by the intriguing extension of the standard model. The gauge boson mediator, Féeton, also…
Dark Matter Annihilation via Breit-Wigner Enhancement with Heavier Mediator
Yu Cheng, Shao-Feng Ge, Jie Sheng +1
We propose a new scenario that both the dark matter freeze-out in the early Universe and its possible annihilation for indirect detection around a supermassive black hole are enhan…