Live, LHC left today to chase the new physics of the Big Bang


The week that began on July 4, 2022 is definitely a good omen for physicist particles. after celebrating the anniversary of the discovery of the Brout-Englert-Higgs boson at CERN 10 years ago (a keystone of the cathedral of the Standard Model of high energy physics which gives masses To the elementary particles known, including those involved in the thermonuclear reactions that make the Sun shine), crowning the work of a handful of Nobel Prize winners in physics more than 50 years ago, some of whom are now deceased, such as Steven Weinberg and Murray Gell Mannand others very much alive, like Francois Englerthere we can follow from 16:00, live Youtube this Tuesday, July 5, 2022, the resumption of collisions of protons at the LHC on the hunt for new physics.

The live broadcast in French from CERN for the start of Run 3 of the LHC. © CERN

The event is important because never in the history of the noosphere has Humanity produced proton collisions at such high energies, namely 13.6 TeV, and with a brightness as high as the proton beams.

Reproduction of the Big Bang in the laboratory

It is always about pushing our knowledge of the physics of big Bangfor example by exploring the physics of quagmaand deeper our understanding of the fundamental nature of quantum particle fields that are responsible for the structure of matter and forces, for example by discovering supersymmetric particles or Z ‘bosons (Z first, not to be confused with the already detected Z bosons at CERN).

Let us immediately remember that 13.6 TeV corresponds to aa power available from 13.600 GeV for the creation of new particles, energy that could give many new protons for each collision between two protons since in this unit of energy and for the relation ofEinstein on the mass-energy equivalence, a proton has a mass of about 1 GeV. Many other less massive particles, therefore more numerous, are in fact generated at each collision and now it is hoped that reaching the new threshold of 13.6 TeV, particles of black matter that would be almost as massive eventually will be created, or perhaps, but it has become much less likely, quantum mini black holes and other effects of thespace-time foam.

We also remember that if it is necessary to reach a sufficiently high energy to produce a new particle of a given mass, it is also the probability of production of this particle during a collision between two protons. The lower this probability, the more collisions it takes to hope to produce and finally observe even a single particle that is still unknown. However, with a low collision rate per second, that is, a low brightness for analogy with the amount of light by stepping into a camera at the second, it could take the life of a whole man.

Clearly, high brightness can be essential.

The LHC Run 3 teaser. To get a fairly accurate French translation, click on the white rectangle at the bottom right. English subtitles should appear at this point. Then click on the nut to the right of the rectangle, then on “Subtitles” and finally on “Translate automatically”. Choose “French”. © CERN

Exceeding the limits of the Standard Model

A new period of data acquisition, Run 3 as they say at CERN, will therefore begin this Tuesday 5 July at the LHC after more than three years of improvement and maintenance work on its giant accelerators and detectors such as Atlas And CMSincluding teams of physical expect to see more collisions in LHC Run 3 than the previous two runs combined. Experience LHCb who is on the trail of a new physics explaining the missing antimatter puzzle in cosmology it has also been completely updated and plans to multiply its own by ten debt data acquisition, whileAlice aims to multiply the number of collisions by fiftyions heavy recorded to understand the mysteries of the quark-gluon plasma of the Big Bang.

The LHC will operate continuously for nearly four years and with it: ” We will measure the intensity of the interactions of the Higgs boson with matter particles and particles carrying force with unprecedented precision, and we will continue our search for decays of Higgs bosons into dark matter particles, as well as the search for additional Higgs bosons, physicist Andreas Hoecker, spokesman for the Atlas collaboration, explains in a press release from CERN, adding, It is not known whether the naturally occurring Higgs mechanism is the minimal scenario with a single Higgs particle.

We conclude with some philosophical reflections to take stock of what is happening at CERN in the footsteps of Heisenberg.

A philosophical research

I was born in an environment, I don’t know where I’m from or where I’m going or who I am. It is my situation as yours, for each of you. The fact that every Man has always been in this same situation and he will always be there tells me nothing. All we can observe for ourselves on the burning question of where we come from and where we are going is the current environment.

That is why we are eager to find out as much about him as we can. In this consists science, knowledge, knowledge, this is the true source of every spiritual effort of Man. Let us try to discover everything we can about the spatial and temporal context in which our birth placed us. And in this effort we find joy, we find it extremely interesting (isn’t that why we’re here?).

This was the thesis supported by Erwin Schrödinger in 1950 in one of the four public conferences entitled ” Science as a constitutive element of humanism “. One of the founders of the Quantum mechanicshaving worked both for the elucidation of the nature of life and for the appearance of matter in a model of cosmology relativist, he also added: Isolated knowledge obtained by a group of specialists in a narrow field is of no value in itself; it has value only in the synthesis that unites it to all the rest of knowledge and only to the extent that it really contributes, in this synthesis, to answer the question: Who we are ? “.

A presentation of CERN. © CERN

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