Upgraded Large hadron Collider will help scientists detect dark matter

After 2021, the particle accelerator , the Large hadron Collider (LHC) will be started again after the updates and will be able to smash particles with each other, scientists hope, using it to finally discover the elusive dark matter. Physics for decades vainly trying to detect particles of dark matter, which accounts for the bulk of our Universe. But now researchers have a new goal in this quest: relatively heavy and long-lived particle, which can be obtained as the result of high-energy collisions at the LHC.

According to some physicists, this particle from time to time may interact with dark matter. If these assumptions are confirmed, it may point researchers in the right direction in search of the elusive substance.

In a new article, published in the journal Physical Review Letters, describes how already installed on the TANK system as a system that can identify these long-lived particles. They are called long-lived because they move slower and last longer than other particles produced in experiments at the Collider.

Indicates that the main problem is how to detect the event of their occurrence among the other particles. As stated in a press releasepublished on the website Phys.org this all happens in a matter of nanoseconds. Thus every second inside a 27-kilometre long LHC in the framework of the experiments encounter more than billion particles, and each such collision produces an even greater number of subatomic fragments emitted in all possible directions. Update TANK should considerably simplify the process of locating the desired particles.

“We expect that, coupled with the tools that are already installed on the TANK, the new method will improve the chances of detecting long-lived particles more than one order,” — says researcher at the University of Chicago Jia Liu.

Experimenters are already working on building a new trap. When the TANK is in 2021 will start again after a tenfold increase of its luminosity, all three main sensor will use the new system.

“We think that the potential system efficiency will increase many times,” adds Liu.

“If these particles are there, we just have to find a way to detect them. Usually the key to the answer is the right question,” adds physicist L Tao Wang of the same University of Chicago.

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