The scientific community is still discussing the origin, structure, and interactions of matter in space and time. One popular theory suggests that dark matter—a mysterious substance thought to make up most of the mass in the universe but not yet seen with our current technology—is made of elementary particles, such as neutrons, electrons, or protons.
Particle Dualism
The earliest proposed explanation for dark matter is particle
dualism, which suggests that it consists of two types of fundamental particles,
each with its own unique properties and interactions. For example, if one type
of particle interacts with another type of particle, it may interact
differently than expected, leading to unexpected results. Particle dualism has
been tested to some extent using various experiments and simulations, but it
remains a controversial topic in science.
In contrast, particle stability describes the way an
interacting particle can behave under certain conditions. This approach views
dark matter as composed of tightly bound particles called "particles"
that interact directly with each other in order to form structures (such as
galaxies or clusters) that cannot be observed at present.
Physicists have found particle stability to be successful at describing both gravitational wave propagation and cosmic ray acceleration, suggesting that particles are stable enough to interact with each other without forming new structures.
Despite the limitations of particle dualism and particle stability, recent research suggests that there may be more than two fundamental particles involved in dark matter.
A study published in Nature in 2017 proposes that neutrinos may interact with photons, making them unstable and potentially containing the majority of the mass in the universe.
Similarly, a paper in 2015 suggests that neutrons may interact with each other, creating the first nuclear state beyond the standard model. These two papers suggest that neutrinos and nuclei are likely to interact differently, but these results must be confirmed through further studies.
Despite the limitations of particle dualism and particle stability, recent research suggests that there may be more than two fundamental particles involved in dark matter.
A study published in Nature in 2017 proposes that neutrinos may interact with photons, making them unstable and potentially containing the majority of the mass in the universe.
Similarly, a paper in 2015 suggests that neutrons may interact with each other, creating the first nuclear state beyond the standard model. These two papers suggest that neutrinos and nuclei are likely to interact differently, but these results must be confirmed through further studies.
Despite the uncertainties surrounding the presence and
distribution of particle stability and particle dualism, the evidence suggests
that dark matter is composed of particles with different characteristics and
interactions. It is likely that neutrons, for instance, interact with photons
differently than do protons, so it is necessary to confirm these predictions
before any conclusions are drawn.
The existence of particle dualism and particle stability has been questioned by proponents of quantum field theory (QFT). QFT states that gravity is not a real force and predicts that matter interacts with forces at higher energies, at the level of subatomic particles, rather than at lower energies, at the level of ordinary matter. Therefore, it is difficult to reconcile particle dualism and particle stability with QFT, though it remains a promising avenue of research.
However, it is also plausible
that particle dualism and particle stability may be correct, but that they only
describe a portion of the matter in the universe. There may be others that
interact differently than expected based on known physics, such as neutrinos,
neutrons, or nuclei.
Understanding the interaction
of neutrinos and nuclei may be crucial for understanding the nature and
distribution of dark matter. In addition, if particle dualism and particle
stability are proven incorrect, it is also possible that our understanding of
dark matter is incomplete.
Conclusion
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