The fifth mysterious resource covers dark matter

No one knows exactly what the "fifth mystery power" is, but studies have shown that if this fifth power really exists, it will have a surprising impact on structural formation. structure of the universe. The fifth resource can reduce inconsistencies between theory and observation in some areas of cosmology.

So far, a new study has demonstrated that the fifth resource may be related to dark matter. In an article published in Physical Review Letters, physicists Jo Bovy and Glennys Farrar were surprised to find that the fifth resource that exists in the dark can compress dark matter, dark matter, It is difficult to be detected directly through independent rotary interactions. In contrast, future experiments can certainly detect the independent rotation of dark matter, so any fifth force in the dark region is certainly too weak.

Dr. Bovy and a New York University student said: 'Our research shows that we can tame some of the properties of dark matter, such as the combination of its interactions with observable regions and the power of the fifth resource between dark matter elements through experiments with ordinary matter '. As to what is likely to happen, the fifth resource eliminates the possibility of directly detecting dark matter or the ability to directly detect dark matter excluding the relevant fifth resource, Bovy and Farrar for that cannot be predicted. 'Both cases are very interesting in both theoretical and practical observations'.

Previous studies have shown that the possibility of a fifth resource has expanded the standard model. Although most dark matter models predict that the force between dark matter particles is small, models such as supersymmetry and the string hypothesis allow very light particles to exist. carrying a large range of forces in the dark.

In this study, the fifth resource - a large-scale, gravity-free gravitational force - may be directly associated with dark matter but does not combine with visible-matter matter. However, if dark matter particles interact non-gravitationally with ordinary matter, quantitative accuracy will cause the fifth resource to arise in the observed area.

On the Bullet cluster image, the green area shows what is supposed to be dark matter.Physicists are studying the relationship between a fifth mysterious resource and the ability to directly detect dark matter.(Photo: NASA / CXC / CIA / STSci / Magellan / Ariz University. / ESO)

Farrar physics professor and director of the Center for Astrophysics and Molecular Physics at New York University said: 'Our research has revealed an unrelated link between objects' interactions. dark matter with ordinary matter and the phenomenon of self-interaction of dark matter '.

According to Bovy and Farrar's explanation, what carries the fifth force must have a vacuum value at the mass of Planck. Conversely, this requires dark matter to be heavy in most cases. In direct detection experiments, scientists look for dark matter by observing ordinary matter particles bounced off by dark matter particles. As the mass of dark matter particles increases, bonding in the process of pairing dark matter and micronutrients becomes more rigid, making it difficult to detect dark matter directly.

In addition to the implications for observations to directly detect dark matter, the fifth resource is also thought to influence the process of forming large-scale structures. If this fifth force is attractive and has a large range, it will significantly increase the power of gravitational interaction, thereby enhancing the structure formation process. According to previous studies, such an impact could narrow the mismatch between observation and prediction in some areas, for example by increasing the number of galaxy clusters, physical clusters. Large, while reducing space, this will be more suitable for observations.

According to the scientists' explanation, the impact of fifth resources does not require its existence, but they certainly motivate researchers to discover its meaning.

Farrar said: 'Jo Bovy and I are investigating what analogous dominance is, probably between signals of destroying dark matter and fifth resource. Besides, coordinating with others, I are investigating the effects of dark matter on cosmology. '

Bovy adds that he is also studying the significance of small-scale attraction between dark matter particles, which could facilitate the detection of dark matter destruction from galaxy satellite galaxies. Milky Way.