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Categoría: Física Experimental de Alta Energía

Physicist from CERN visits the CCTVal to review advances in making muon detectors

The renowned CERN scientist, Dr. Jorge Mikenberg, visited the center of the USM that is working on the renovation of pieces of the largest detector of the Large Hadron Collider, the ATLAS Experiment.

The renowned CERN scientist, Dr. Jorge Mikenberg, visited the center of the USM that is working on the renovation of pieces of the largest detector of the Large Hadron Collider, the ATLAS Experiment.

Since 2013, the Technological Scientific Center of Valparaíso (CCTVal) of the Technical University Federico Santa María, is working on the renovation of the small-strip Thin Gap Chambers (sTGC); High precision detectors that capture muon particles that will be used in the Large Hadron Collider (LHC), during the new stage of the ATLAS project.

In this context, and after finishing the first phase of design, development and production of 16 prototypes of sTGC, is that the renowned physicist of the European Council for Nuclear Research (CERN), Dr. Jorge Mikenberg, visit the CCTVal in order to monitor the progress of the preparation of 140 final pieces that the center will send to Switzerland at the end of 2018.

The Argentine researcher, based in Switzerland for more than 30 years, has a great career: as one of the pioneers in the construction of the first particle detectors during the 1980s, Mikenberg worked on the DESY accelerator (Hamburg), and in the OPAL Experiment, highlighting its participation in the ATLAS project, an experience that allowed us to discover the Higgs boson.

For Dr. Mikenberg, who was also a member of the European Committee of Accelerators of the Future, the work carried out by researchers from the USM and the Pontificia Universidad Católica is noteworthy, since "only working together would allow scientists from the south of the world can participate in a project like this. "

"Thanks to the cooperation between these universities, Chile has become a substantial part of a crucial experiment for science, the largest particle physics project in the world. That's ATLAS, "said the scientist.

ATLAS Project: What is the particle of God about?

The discovery of the Higgs boson, also known as "the particle of God", marked a very important milestone for physics and science in general. Regarding this issue, Dr. Mickenberg pointed out that "now the mission is to study it in depth".

"Our discipline is a measurement science. We have discovered the Higgs boson, but to know how much of this corresponds to our physics model, we have to measure it with high precision, "added the CERN collaborator.

For this reason, Dr. Mikenberg was enthusiastic about the progress being made in the CCTVal, where he explained how the new detectors that will be part of the LHC during the next stage of the ATLAS project work.

"When a charged particle passes through matter, it ionizes it, taking the electrons out of the atoms. Through the positively charged wire systems of the sTGC, in a space filled with gas, the particle passes through the gas, taking electrons out of there, and taking them to those positively charged wires. In this interaction, the particles begin to accelerate, producing more ionization, which leaves a trace of 10 thousand electrons, which allows us to know where the particle passed, "he said.

The scientist explained in depth what could be a change in the way of understanding the discipline."We know that what we understand today as the standard model of particle physics cannot be correct, because at very high energy there must be something else that modifies it, and through these very precise measurements, we could have a guideline of what is different, or what is that small deviation, that allows us to know which is the base model that is below normal, "he explained. "It's like normal mechanics, that to build a bridge has no problem, but if I want to understand things at the quantum level, one relates that classical mechanics does not work."

Escrito por Super User 23 · May · 2018

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