Found micro particles coming from dark matter

Italian scientists discovered the microscopic particles they thought came from dark matter in the universe.

Dark matter (antimatter) accounts for 23% of the universe, but we cannot see it. Scientists can only detect the existence of dark matter through its impact on visible matter.

In June 2006, Italy launched the Pamela satellite into space to study dark matter. Satellite carries many devices capable of detecting invisible particles. Recently, a device has detected quite a number of positron particles (with identical electron properties but positively charged) in a space of high energy. Positrons are antagonistic particles (antiparticles) of electrons. When these two particles meet, they will disappear and release energy.

"Probably the positron ratio with electrons must drop when the energy level increases, but our device finds that rate increases with energy levels. It's strange," said Piergiorgio Picozza, a professor of the University. Study Rome Tor Vergata (Italy), speaking.

Dark matter is a controversial topic even though people have countless evidence of its existence.Photo: Andrey Kravtsov

Positron is the first antiparticle discovered in the world of micro particles. In a vacuum, positrons last a long time with a life time of 4.3 × 1023 years, but in the environment, it has a relatively short life time due to being destroyed almost immediately when encountered electrons. With knowledge of positrons and electrons, scientists can calculate the ratio between two particles at a certain energy level.

However, some scientists argue that the excess positrons can come from hidden crystals (a super-dense star, spinning rapidly and releasing much energy into the surrounding space). We do not see the crystal with the eye but only detect it through the radio signal.

Professor Picozza admits that hermeneutics may be an explanation, but he stressed that many of the world's leading experts are still inclined to hypotheses in which the Pamela positrons are detected from dark matter. .

According to Picozza, if the Large Hadron Collider in Switzerland can produce antiparticles, that means hidden crystals are not the only positron supply. "Then we can confirm we found dark matter , " he said.