The particle accelerator in Switzerland is a highly sought-after site for conducting experiments from all over the world. The process of approving the experiments carried out in the accelerator and carrying them out is very complex, and requires the trust of many international parties.
The particle accelerator in Switzerland is a highly sought-after site for conducting experiments from all over the world. The process of approving the experiments carried out in the accelerator and carrying them out is very complex, and requires the trust of many international parties. The running time of the particle accelerator is estimated at hundreds of thousands of euros, therefore a preliminary examination is conducted regarding the question of the necessity of the experiment for the continuation of scientific progress. Dr. Guy Ron's research group from the Hebrew University of Jerusalem, in collaboration with two groups from the USA, were chosen to lead an innovative experiment in an accelerator and once again proved Israel's important position in the scientific world.
The chosen experiment will help to understand an important question in the world of physics - the size of the protons. Protons are known particles throughout the world of science and until the last year scientists thought that they knew and understood them well. Two separate experiments to measure the radius of the proton, which were carried out in recent years, yielded significantly different results and raise doubts regarding physicists' understanding of one of the most well-established and agreed-upon theories in modern physics - the quantum electromagnetic theory. Since protons make up 75% of the visible matter in the universe, the experimental gap in discovering its radius (thus its structure) opens the door to the possibility of refreshing the most basic laws of physics.
According to Dr. Guy Ron, the experiment they proposed will put to the test the various results obtained in the past with the help of a new technique that has not been studied so far, and the particle accelerator in Switzerland is the only site in the world where this can be done.
Raising funds for the experiment is not trivial since the groups have to convince of the importance of the experiment and their ability to realize it. Despite significant cuts in the US budget to finance experiments of this type, the US National Science Foundation and the US Department of Energy have already given their support.
On the same topic on the science website:
- Cern CEO Rolf Hoyer: My dream is to find the first particle of dark matter. First article following a tour of the Cern facilities
- CERN tour notes Part II: The door leading to the Big Bang
- CERN tour notes, part XNUMX Will we sail only if we know there is an America across the ocean? Prof. Eliezer Rabinovitch from the Hebrew University on the importance of basic science (Gallery - LHC)
- CERN Tour Notes Part 21 - Prof. Elam Gross: The discovery of the Higgs is the beginning of the new science of the XNUMXst century
- CERN Tour Notes, Chapter 5: The Israeli in Search of New Physics
- CERM Tour Notes Chapter 6: In Search of the Tau Particle
16 תגובות
sympathetic
The diameter of the proton can differ by only a few tens of percent from what I wrote.
The other constants span fifty orders of magnitude.
Despite this, the calculation I brought of the diameter of the proton as a standing wave, yields its approximate diameter approximately.
Coincidence? As in Maxwell's theory that derived the speed of light from the constants of electricity and magnetism from an incorrect hydrodynamic model of the ether?
"And in a good spirit I tried to correct you."
Yes... and the cucumber universe will strike a massacre...
sympathetic
You wrote that a proton is a quantum particle and therefore has a wave function.
This sentence is wrong, and in good spirit I tried to correct you.
I forgot for a moment that you are never wrong... you are humble on the one hand and know everything on the other. My petite……
Israel
As the closest estimate you make is correct but it is only an order of magnitude, firstly the proton is a complex particle, it consists of three quarks secondly quantum fluctuations affect its characteristic radius. Therefore, soon the first thing to consider is the wavelength of the proton as its radius, but the corrections for this are relatively large.
Miracles
As usual, this time you are quoting a textbook instead of thinking for yourself. It is true that classical objects also have a wave function, but this has no effect on knowing their radius, the uncertainty arising from the fact that they have a wave function many orders of magnitude smaller than their radius, while the radius of quantum particles is exclusively determined by quantum theory.
functionary
good luck with that.
In quantum theory: E = hf.
In electromagnetic waves λf = c, the speed of light is equal to the frequency of the wave times its length.
E=mc^2, Einstein.
It turns out that λ = h/mc.
If we see the proton as a wave, its diameter will be the formula above.
now:
proton mass = 1.67262158 × 10^-27 kilograms.
the speed of light = 299 792 458 m / s.
Planck's constant = 6.626068 × 10^-34 m2 kg / s.
It turns out that the diameter of the proton is approximately 1.2x 10^-15 meters.
I don't know if it means anything, but this is indeed the approximate diameter of the proton.
And the dimensional analysis also comes out fine.
Miracles
No thanks honey. I prefer to learn correct things. 🙂
functionary
I studied it in my master's degree. The textbook was: Comprehensive Physics for Engineers
of Narinder Kumar.
I would be happy to provide sources for all my "babble". Maybe in the end you will really know something 🙂
Miracles
Where did you learn that, on the show "Good Morning" with Dana Ron? Like the rest of the stuff you rant about?
A quantum particle has a wave function. And not "for every bone".
You could just as well write that the whole universe is a wave function.
sympathetic
From what I've learned, every object has a wave function, not just small particles. Other than that - the question is good.
Fab is already entering into the question of what defines the proton, its charge or its mass, etc., and it is possible that each property has a different radius.
It would be good if they explained to the general public what is meant by the proton radius. The proton is a quantum particle and therefore has a wave function, it is not a (classical) hard sphere, therefore it makes sense to explain what is meant by the proton radius and an explanation of what the experiments were done to measure it. If I'm not mistaken, the experiments that are in conflict with each other were performed by comparing the results of scattering of an electron on a proton versus scattering of a muon on a proton. I would love to hear more about that.
I would appreciate it if you could alert your spokeswoman, because there is nothing written in the article about which accelerator it is about, so I assumed it was CERN.
Not CERN but an accelerator called PSI which is near Zurich and not Geneva
It's sad how Obama and the Democrats are hurting the world of science.