A new study proposes that particle mass and fundamental forces could originate from the geometry of hidden extra dimensions, specifically through evolving seven-dimensional shapes called G₂-manifolds, potentially eliminating the need for the Higgs boson in explaining mass.
Physicists are exploring the concept of a "dark dimension" within the framework of string theory to explain the minuscule value of the cosmological constant and the potential emergence of lightweight, weakly interacting particles. This theory posits the existence of dark gravitons, which could serve as candidates for dark matter and have implications for the distribution of galaxies. While the idea is intriguing, some physicists remain skeptical, but upcoming experiments, including cosmological surveys and laboratory tests, may provide evidence to support or refute the dark dimension hypothesis and shed light on the nature of dark matter and the forces of gravity.