According to supersymmetry, dark-matter particles known as neutralinos (which are often called WIMPs) annihilate each other, creating a cascade of particles and radiation that includes medium-energy gamma rays.
Supersymmetry is a mathematical property of string theory that states that every known particle species has a partner particle species. This property is foundational to the development of string theory as a unification scheme for quantum mechanics and gravity.
According to supersymmetry, dark-matter particles known as neutralinos annihilate each other, creating a cascade of particles and radiation that includes medium-energy gamma rays.
In the 1970s, physicists uncovered several remarkable properties of string theory. String theory could potentially explain all the particles and all the interactions between them, and provide a quantum solution to gravity.
String theory was discovered by accident in 1969 by Italian physicist Gabriele Veneziano. Veneziano was trying to describe the physics of particles like the proton and neutron, not strings.
According to supersymmetry, dark-matter particles called neutralinos annihilate each other, creating a cascade of particles and radiation that includes medium-energy gamma rays.
When a particle meets its antiparticle, they mutually annihilate. The energy of the colliding dark matter particles is transformed into lighter particles, including electron-positron pairs and energetic photons including gamma rays.
Neutralino dark matter can be observed experimentally in nature either indirectly or directly. For indirect observation, gamma ray and neutrino telescopes look for evidence of neutralino annihilation in regions of high dark matter density such as the galactic or solar center.
Gamma rays are a type of electromagnetic wave that can exist even in space or a vacuum.
Dark matter is thought to be non-electromagnetic and non-baryonic, meaning it doesn’t interact with electromagnetic forces or ordinary matter particles. When dark matter collides with ordinary matter or other dark matter, it typically passes through without any direct interaction.
According to the CDM paradigm, dark matter particles interact with each other only gravitationally and thus do not collide.
Dark matter is not known to interact with ordinary baryonic matter and radiation except through gravity, making it difficult to detect in the laboratory
Dark matter and antimatter are different things. Antimatter is a mirror-like version of normal matter, which is the matter that makes up our bodies, the air we breathe, and the food we eat. Antimatter particles are essentially the same as visible matter particles but with opposite electrical charges
Dark matter is a catch-all term for an unknown constituent of the universe that is believed to exist and behave like “dust”. Dark matter is matter that does not interact electromagnetically, and therefore cannot be seen using light.
NASA says dark matter is not antimatter because we do not see the unique gamma rays that are produced when antimatter annihilates with matter.
However, a 2019 study searched for an interaction between dark matter and antimatter and set a new upper limit for the potential interaction. In a recent study, physicists wondered whether dark matter could actually consist of plain old antimatter.
No experiment has definitively proven string theory to be the fundamental theory of nature. However, the ideas of string theory have passed countless theoretical and mathematical tests over the last fifty years.
String theory is inherently mathematically and conceptually challenging. It is difficult to test its predictions due to the extremely high energies required, which are currently beyond the reach of experimental verification. Additionally, there are multiple versions of string theory, leading to debates about which, if any, accurately describes our universe.
String theory is an unfinished monument, whose roots remain elusive despite decades of intense effort. While this brings about some distress, it also makes the subject mysterious, challenging and highly fascinating.
String theory has led to several advances in mathematical physics, including:
- Black hole physics
- Early universe cosmology
- Nuclear physics
- Condensed matter physics
- Holographic duality
- Mirror symmetry
String theory also makes predictions about pure mathematics, and so far, all of these predictions have been correct.
String theory research has also led to the development of many theoretical tools that can be used outside of string theory. One of the most powerful of these tools is holographic duality, also known as correspondence.
String theory remains a topic of active research and debate among physicists. While it has not yet been experimentally confirmed, it continues to be studied as a potential framework for unifying the fundamental forces of nature.
(Full article source google)
https://theikariajuice.com?shield=a808bddj1x-vjxdcqd47pa1nc0
Universe discoveries 