Xinhua News Agency, Beijing, November 30 According to the announcement of the Chinese Academy of Science, the dark matter particle detection satellite 'Goku' has sufficient data to confirm that an unusual fluctuation of electron cosmic rays has been measured in space. This fluctuation has never been observed before, which means Chinese scientists made a groundbreaking discovery that may have something to do with dark matter, which was published online by the internationally authoritative academic journal Nature on the 30th of Beijing time.
The chief scientist of Goku and the deputy director of the Purple Mountain Observatory of the Chinese Academy of Sciences Chang Jin introduced that the normal spectrum change of the electronic cosmic rays should be a smooth curve. However, according to the observation data of 'Goku', at 1.4 trillion electron volts (TeV) Suddenly appeared violent fluctuations, showing a 'peak' This shows that there must be a new physical phenomenon.
Whether this phenomenon is a trace of dark matter sought after by scientists? Chang said that according to the available detection data and theoretical models, it is impossible to make any determination yet. However, this suspected dark matter trail is the closest to dark matter in recent years A major discovery, will also open a new window of the human observational universe.
'The latest discovery of' Wukong 'is a major breakthrough leading the original achievements.' Bai Chunli, president of the Chinese Academy of Sciences, said that if the follow-up study confirms that this finding is related to dark matter, it will be an epoch-making scientific achievement, even if it has nothing to do with dark matter, It may also bring about a breakthrough in the existing scientific theory.
At present, the mainstream scientific community believes that human beings have discovered that the matter only accounts for less than 5% of the total mass of the universe and the rest consists of dark matter and dark energy, etc. Since dark matter can not be directly observed and its interaction with matter is weak, Knowing little about the mystery of dark matter was revealed as yet another major leap forward in the laws of nature of mankind after Copernicus's heliocentric theory that Newton's law of universal gravitation, Einstein's theory of relativity, and quantum mechanics.
The "Goku" satellite has gathered scientific research capabilities from a number of units under the Chinese Academy of Sciences and has been successfully launched for more than ten years since the project was planned to be launched by the end of 2015. In cooperation with the U.S. Fermi satellites, the Japan Quantum E-scopes and the famous physicist Ding Zhaozhong Compared with the international similar equipment such as the Alpha Magnetic Spectrometer, the investment in 'Goku' is relatively small. The world's key technical indicators of 'the energy measurement accuracy of high-energy electrons and gamma rays' and 'the ability to distinguish different types of particles' Leading.