At a depth of 100 meters under CERN in Geneva, Switzerland, there is a super-powerful Large Hadron Collider, which has been suspended for three years due to repairs and upgrades, but now scientists at the center have restarted the device.
According to scientists at the center, in the next four years, if nothing else, the particle collider will continue to collect data for the search for dark matter.
Particle collider is an important tool for human beings to study the basic microstructure of matter, through continuous input of energy, so that subatomic particles in the pipe at a speed of near the speed of light at the limit, and eventually collide with each other, in this very high energy collision process, microscopic particles may fragment, or produce other effects, continuous observation of this collision process, it is possible to find new material structure and physical phenomena.
CERN's Large Hadron Collider (LHC), the world's largest and most energetic particle accelerator, is capable of accelerating hadrons to speeds so close to the speed of light that it simulates the instantaneous course of the small big bang. The device is a circular accelerator with 27 km of underground pipelines and a complex internal structure.
Hadrons are a class of subatomic particles that, according to the Standard Model theory in particle physics, are made up of fundamental particles such as quarks, antiquarks, and gluons. According to the composition, hadrons can be divided into baryons, mesons and other special hadrons. Baryons are made up of three quarks or three antiquarks, which are fermions, such as protons and neutrons belong to baryons, while mesons are composed of one quark and one antiquark, which are bosons. The particles in the collider's pipe that are accelerated are often protons.
The Large Hadron Collider was first launched in 2008, and in 2012, a major breakthrough was made when researchers discovered the Higgs boson predicted by British physicist Peter Higgs in his theory in 1964, a particle that gives mass to other particles through the Higgs mechanism. The discovery earned Peter Higgs the 2013 Nobel Prize in Physics.
The extensive upgrade, which is its third run, is also expected to reach a record 13.6 trillion electron volts (13.6 TeV) in energy from the collision.
Particle Collider Continents also exist, but the collision energy simply cannot reach such a high level. Seeing that there is such a large particle collider abroad, some physicists on the mainland also hope to have it themselves, and the mood is understandable, but it is not so easy to build, not only the technical threshold is high, but also the cost is huge.
Among those who oppose the mainland's construction of a large collider at this stage, the most famous is Yang Zhenning. On the achievements, Yang Zhenning is definitely the Taishan Beidou in the physics community, with high vision and rich experience, and the opinions he gives should naturally be carefully considered.
Yang Zhenning is not to let us never build a large collider, but to believe that the construction of a large particle collider on the mainland at this stage is of little significance, not only is it expensive, but it is also difficult to make new discoveries through the large particle collider at present.
The United States had planned to build a large collider in the last century, but it was eventually halted because the budget was far beyond expectations. Today's Large Hadron Collider is an internationally-competitive scientific project that cost tens of billions of dollars and brought together the wisdom of nearly 10,000 top technologists and scientists from dozens of countries around the world.
Mainland scientists had previously planned to build a particle collider with a pipe circumference of 100 kilometers and a collision energy several times more powerful than the large hadron collider, which is bound to cost more, and no matter how carefully calculated, it is estimated to cost tens of billions of dollars. Even if it were to be built, it might take the form of international cooperation. And from the operation of the European large hadron collider, the annual maintenance cost of this large collider is also very high, and the power consumption alone is very amazing.
Although scientific research should not be too concerned about input and output, but this money is not blown by the wind, the total amount of scientific research funds every year is limited, to allocate to many research projects and fields, or should be used as much as possible on the blade, such as first invested in some of the current urgent need for breakthroughs and have greater value of the project.
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