The scientists were able to keep it from ionizing for a tenth of a second by trapping it in a vacuum
An article published this week in the journal Nature reveals that, for the first time, antimatter atoms have been captured and managed to live long enough to be studied by scientific instruments.
Not only is this a scientific dream come true, but it's happening in a tangible way that can help us assess what happened to all the antimatter particles that have disappeared since the Big Bang, one of the mysterious mysteries of the universe. "We are excited that we have been able to trap antimatter atoms long enough to study their properties and see if they are very different from their material counterparts." says Makoto Fujiwara, Alpha team member, International Partnership at CERN.
Antimatter is created in the same amount as matter when energy is converted to mass. This happens when particles collide like in the particle accelerator at CERN, and it is believed that this also happened during the big bang at the beginning of the universe.
"A good way to think of antimatter is as a mirror image of normal matter," said team spokesman Geoffrey Hangst, of Aarhus University in Denmark. "For some reason the universe is made of matter, and we don't know why, it's because in principle a universe could have formed from anti-matter."
To study antimatter, scientists must create it in a laboratory. The Alpha Basran experiment succeeded in creating antihydrogen - the simplest antimatter atom since 2002. The production is done by mixing antiprotons and positrons to create a neutral antiatom. "What's new is that we were able to produce it over time," said Hangst. "By keeping the anti-hydrogen atoms away from the walls of their container to prevent them from ionizing for a tenth of a second.
The anti-hydrogen was held in an ion trap, where the electromagnetic field trapped them in a vacuum, and cooled to nine degrees Kelvin (-264 degrees Celsius). To see if they were able to produce any anti-hydrogen atoms, they released a small amount to see if ionization would occur between matter and antimatter.
The next step for the Alpha partnership is to create an experiment on the trapped antimatter atoms, and the team began researching ways to find what color the antihydrogen light glows when it hits the microwave, and to see how to compare the colors with those of the hydrogen atoms.
28 תגובות
Avi Shalom,
In my opinion, on the occasion of the new civil year, it would be nice to make a list of the great scientific achievements of the year, especially those of Israelis.
On my list are:
1. Ayalon Linderstrauss for winning Fields Stewardship, which seems to have been forgotten for a long time.
2. Anti-hydrogen capture in Chern which is reported here in the article. One of the partners, Dr. Eli Sharid, is Israeli. Recently, this discovery was chosen as the discovery of the year by the scientific newspaper Physics world.
http://physicsworld.com/
"professor"
After 2012 you won't be able to publish any theory, you better hurry.
I will publish your theory in 2015 and be a year ahead of you so you better publish it now before I take the glory away from you.
By the way, a very hungry professor:
Why would you actually publish this in 2016?
Do you think that the world and the country in particular should accept things without investment, if they don't invest in education and universities it is better for people like Albert or Newton not to be born at all
A very hungry professor:
I have already managed to explain a lot of things in the talkback.
It's just a matter of motivation (and of course it also depends on having an explanation).
Are you very hungry but don't discover the theory because of the money?
If you starve to death it will not be the fault of others. In fact you could say you died of greed.
The meaning of striving for minus or plus is the field that connects particles in relation to the standard state of the fourth dimension, this is a talkback, not a book, there is no room to elaborate
And you number 17 shut up because of people like you there is a brain drain
What prevents me from publishing the theory is money
Something that the physicists do not understand and do not discover for free
"Professor" Alec. Go, you can do something, poor thing. Leave the physics to the physicists.
A very hungry professor:
1. What is "aspiring to the minus"? There is no such thing in mathematics.
2. What prevents you from publishing the theory today? Is it important to you to die first?
It reminds me of a joke about Hilbert.
It is claimed that when he planned to participate in a mathematical conference he told the conference organizers that he would lecture on "a proof of Fermat's theorem".
When he arrived at the conference he spoke about something completely different.
They asked him: "Why did you announce that you would present a proof of Fermat's theorem?"
His answer was: "I sent this message in case the plane I'm flying in crashes on the way."
There is a difference in the understanding of matter and antimatter, the nuclear connection of the strong force in matter below the quarks strives for minus while in anti it strives for plus, about ten the mass is indeed equal, you will discover this in the research I will publish in 2016, if I do not succumb to poverty in Israel before then, in summary it is not possible for anti universe
מקור
http://www.berkeley.edu/news/media/releases/2010/11/17_antihydrogen.shtml
Father, you should add a space after the "from" in the response
What they don't know is that the world actually consists of anti-matter and what has disappeared is actually the matter, they will probably find that out at some point.
granite
The symmetry breaking mechanism you speak of is not large enough to explain the composition of the universe. The Nobel Prize in 2008 was indeed given to two Japanese scientists (it's a bit strange to call them a team) Kobayashi and Maskawa (together with them the Japanese physicist Nambo also received the prize but for other discoveries). Kobayashi and Maskawa showed that in order for a mechanism of CP symmetry breaking to exist, at least 3 "generations" are needed. At the time Kobeishi and Mesqua wrote their article, only 3 Quakers were known. Today, when the accelerators were found, there are 6 known Quakers corresponding to 3 generations. In any case, Kobeishi's symmetry breaking is related to the weak force and is not enough to explain the asymmetry in the universe between matter and antimatter.
The matter of breaking this symmetry was really problematic and to answer it the standard model that we know today with 3 "generations" of particles was created
A team of Japanese scientists has shown that if there are at least 3 "generations" of particles then matter and antimatter can decay "asymmetrically"
I read a bit on Wikipedia and remembered a bit more. (CP symmetry breaking)
Symmetry breaking has been measured in particle accelerators, but the measured breaking still does not correspond to the amount of matter in the universe...
Student, Technion:
Just a tip: when rejecting a source it is better to present a better source that claims otherwise (unless your recommendation is to rely on nothing).
Just a piece of advice - don't rely on Wikipedia on complex topics like antimatter.
AA:
In particle accelerators, as far as I know, no difference between the amount of matter and antimatter particles has been found.
The question of why our world consists of matter and not of anti-matter is not yet resolved - although there are speculations about the direction of the solution.
http://en.wikipedia.org/wiki/Antimatter
http://en.wikipedia.org/wiki/Antiparticle
Correct me if I'm wrong, but antimatter is not created in the same amount as matter when energy turns into mass, (but there is a very, very, very small difference when it comes to very large amounts) and therefore the universe is also made of matter and not of antimatter (this tiny difference). And the mystery is why there is such a "preference" towards the material.
At least that's what I heard in a big way in a lecture at the Weizmann Institute.
(contrary to what is said in the article)
Indeed — cool!
A question, unrelated to the above:
Is it known when they will try to detect the existence of the famous Higgs boson? As we know, one of the important goals of building the accelerator is to try and discover it.
I will rejoice in repentance.
my father
Thanks for translating the knowledge.
The Israeli partner in the creation of the anti-hydrogen and its capture in Cerchan is Dr. Eli Sherid. You can find a short interview with him about the discovery today in Atun Ha'aretz. If I'm not mistaken, Dr. Sherid was involved in the creation of the traps for the capture of the anti-hydrogen. This is of course the main problem in the discovery of anti-hydrogen. Once the anti-hydrogen is formed if it collides with the walls and annihilates with normal matter, the anti-hydrogen must therefore be trapped by a potential trap that will prevent it from colliding with the vessel walls.
Great, now all that's needed is to get some dilithium crystals
And you can start working on the first winding engine in history.
And that I won't hear all kinds of excuses in a Scottish accent such as:
I can't do it, Captain. I don't have the power
Cool !
Corrections:
was used to combine positrons and anti *protons* to create anti hydrogen.
"Release a small amount to see when fermentation occurs" –> *if* fermentation occurs