Wednesday 26 March 2025
A new study proposes a novel way to explain two of the most enduring mysteries in modern astrophysics: dark matter and baryon asymmetry. The researchers, led by Debasish Borah and Indrajit Saha, suggest that these two phenomena may be connected through a process known as filtered cogenesis.
Dark matter, which makes up approximately 27% of the universe’s mass-energy budget, is an enigma that has puzzled scientists for decades. Despite extensive efforts to detect it directly, dark matter remains elusive, leaving researchers to rely on its gravitational effects on visible matter to infer its presence. Baryon asymmetry, on the other hand, refers to the fact that the universe contains much more matter than antimatter.
The new study proposes that these two phenomena may be linked through a process known as filtered cogenesis. In this scenario, dark matter is not a distinct entity from baryons (the particles that make up ordinary matter), but rather an asymmetric distribution of matter and antimatter in the early universe. This asymmetry gives rise to the observed abundance of normal matter over antimatter.
The researchers suggest that this asymmetry arose during a phase transition in the early universe, when the temperature dropped below a critical point and the fundamental forces of nature changed. During this transition, particles with different masses and interactions became trapped in different regions of spacetime, leading to an asymmetric distribution of matter and antimatter.
This idea is supported by observations from gravitational wave detectors like LISA (Laser Interferometer Space Antenna) and other experiments that have searched for signs of dark matter. The researchers propose that the observed gravitational waves could be evidence of this filtered cogenesis process at work in the early universe.
The implications of this theory are far-reaching, offering a new perspective on the nature of dark matter and baryon asymmetry. It also raises questions about the origins of the universe and the fundamental laws of physics that govern its behavior.
While the idea is still speculative, it has sparked renewed interest in the field of cosmology and particle physics. The researchers are now working to refine their model and test its predictions against observational data from a variety of sources.
As scientists continue to explore this new idea, they may uncover clues about the fundamental nature of reality itself. Whether or not filtered cogenesis ultimately proves to be the solution to the dark matter puzzle, it represents an exciting development in our understanding of the universe and its many mysteries.
Cite this article: “Unlocking the Secrets of Dark Matter and Baryon Asymmetry”, The Science Archive, 2025.
Astrophysics, Dark Matter, Baryon Asymmetry, Filtered Cogenesis, Universe, Gravity, Antimatter, Particle Physics, Cosmology, Gravitational Waves
Reference: Debasish Borah, Indrajit Saha, “Filtered cogenesis of PBH dark matter and baryons” (2025).
