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Another landmark at the Large Hadron Collider LHC: simulating the moment after the Big Bang

A collision of two ions created a gluon-quark plasma at a temperature of 10 trillion degrees, like the situation that prevailed just after the big bang

LHC - PR photo: CERN
LHC - PR photo: CERN

After a long history of malfunctions the Large Hadron Collider, the LHC at the Sarn facility near Geneva is starting to provide scientific news.

Researchers at CERN succeeded yesterday (Sunday) in causing the collision of two ions - atoms without electrons - at such a speed that they produced temperatures of about 10 trillion degrees Celsius. Dr. David Evans from the University of Birmingham and a member of the CERN international team was quoted in the paper "telegraph""We are satisfied with the achievement. The collision created a mini big bang and the highest temperatures and densities ever achieved in any experiment."

"This process was carried out in a safe and controlled environment that enabled the existence of a compressed and hot subatomic fireball, at a temperature of over 10 trillion degrees, a million times hotter than the center of the sun. At these temperatures, even the protons and neutrons that make up the nucleus of the atom dissociate and become a hot soup of quarks and gluons known as gluon-quark plasma.

The purpose of the experiment is to investigate the beginning of the universe, The New Scientist explains. According to the paper, reaching such temperatures and creating the soup of quarks and gluons is similar to what the universe was in a millionth of a second after the big bang.

More explanation is on the website RedOrbit : "Quarks and gluons are subatomic particles, the building blocks of matter. During the quark-gluon plasma state, they break free from their grip on each other, as scientists hypothesized happened immediately after the Big Bang. According to Evans, who studied the plasma, physicists hope to learn more about the strong force that binds the nuclei of atoms together. The biggest surprise was that the resulting soup was not gaseous but behaved as a "perfect liquid".

22 תגובות

  1. to someone 235

    Read Michael's link. A much shorter and simpler explanation is:
    The two colliding particles have a lot of energy. According to Einstein's well-known formula E=mc^2 the energy will turn into a mass or more precisely a lot of masses. From the theory of quantum fields we know that particles can be produced from the vacuum (the void) given sufficient energy. Therefore, the energy of the two colliding particles becomes a lot of particles with high speeds, i.e. high temperature.

  2. 17 Go to Google Chrome and you will see the difference between heaven and earth.
    I, too, remained loyal to Microsoft's IE and even reached beta 9.
    Nothing helped my mental health.

  3. To my father Blizovsky, maybe you will finally change the server, the current one is so slow that he wants to cry.

  4. The "material" from which the relevant part of the accelerator is made is electromagnetic fields and these, as we know, do not melt.
    Besides, the matter of temperature can be confusing when it comes to small amounts of particles, because it is the average kinetic energy of the particles but not their quantity.

    Pay attention, for example, to the temperature distribution in the interstellar medium:
    http://en.wikipedia.org/wiki/Interstellar_medium

    This is the space in which, as you remember, ice blocks that appear to us as comets move.

  5. No. Ben Ner,
    I also wonder about the use of the word "trillion": is it 10 to the 9th power or 10 to the 12th power? Or neither this nor that? In any case, it is clear that in such magnitudes the question whether it is Celsius or Kelvin is irrelevant.
    Although, I do wonder about the technical matters raised here, such as what material the accelerator is made of and how it managed to handle the high temperature.

    "Dark fire"? Indeed an amusing term. Just don't tell it to my lecturer at Astro, who objects to the use of the term "dark dark energy".

    "The big surprise..." - I assume this refers to the results of the experiment. Otherwise, the scientists would have been surprised at the stage of developing the theory, and the experiment would have only confirmed their theory.

  6. Why do you need a particle accelerator?
    eat bean soup, hummus, wait,
    And here you have Anat Berishit...

  7. With strong acceleration and tilted magnetism, with the help of LHC, we will get to see the Higgs star in our lifetime!
    Artist!

  8. A. Ben Ner:
    Not only opposition to science emerges from the reactions of the two lichs, but also a demonstration of inexhaustible ignorance.

  9. L: We are getting closer to a human explosion and: Jacob
    From your responses there is a sour aroma of oppositional acidity to scientific theory.
    And I ask you: about what and why?
    After all, the scientific theory is the conclusion of most scientists from the physical information known to science today.
    After all, only the formulation of a theory, consistent with the information known today, will allow the continuation of the research.
    Without a theory it is not possible to continue researching. And it is not possible to perfect and make precise the scientific knowledge that stands in the interest of humanity.
    Jacob Your comment that: "There is no conclusive proof that this was the case", even though it is true, there is nothing wrong with it
    And the scientific research. There is no conclusive proof (for the theory) - there is supporting evidence (for the theory).

  10. You forgot to mention the name of that journalist who interviewed a scientist who saw the big bang
    And I'm sure you missed at least 1 million years three months and a day
    There is no conclusive proof that this was the case
    Good luck with your next study

  11. to AR. Quote from the beginning of the entry "Boson" in Wikipedia:
    Bosons are particles whose spin is an integer (unlike fermions).
    These particles may be elementary particles or composed of other sub-particles.
    The bosons are named after Satindra Nath Bose.
    According to quantum field theory and the standard model, the four fundamental forces in nature
    (the strong force, the weak force, the electromagnetic force and the gravitational force) are carried by four
    Families of gauge bosons, (which are the 13 elementary subatomic particles) following:
    Photon - has spin 1, carries the electromagnetic force
    Gluon - has spin 1, carries the strong nuclear force (there are eight types)
    W and Z bosons - having spin 1, carry the weak nuclear force
    (There are two types of W and one type of Z)
    Graviton - has spin 2, carries the force of gravity (its existence is assumed).

    Higgs boson - according to the standard model there is also a Higgs boson, which has spin 0. This boson
    It has not yet been discovered practically and its existence is a theoretical prediction. …..

  12. Didn't heat with such intensity melt the protective wall and everything around it and where is the soup of Genesis
    It is to be believed according to the opinion of the scientists that the size of the explosion here does not fall short of the size of the explosion then at the beginning of the history of the big bang so where the hell is the cloud of the genesis soup or the whole issue of the big bang is puffed up and that it means that speculations have no physical basis

  13. To my father
    10 trillion degrees ……….Celsius?
    fire ball ?
    It seems to me that the above terms are,,,a bit,,,do not belong, although I agree that at least regarding the concept
    "Fireball", it may have been used due to the lack of a better concept to describe the material
    At this stage of the evolution of the universe. After all, at this stage photons have not yet been created, therefore the description "fire"
    requires some correction.
    Perhaps in the spirit of these days we can suggest the concept of "dark fire". (sorry for the expression...).
    Regarding the final sentence:
    ...the biggest surprise was that the resulting soup was not gaseous but behaved as a "perfect liquid".
    What does he refer to?
    Is it for the conclusions from the experiment or is it for the predictions of the theory?

  14. A collision of two ions created a gluon-quark plasma? What a piece, this is exactly what the pigeons produce on my car every day.

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