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Antimatter atom trapped for first time, say scientists
BBC News ^ | 11/17/10 | Jason Palmer

Posted on 11/17/2010 2:08:43 PM PST by NormsRevenge

Antimatter atoms have been trapped for the first time, scientists say.

Researchers at Cern, home of the Large Hadron Collider, have held 38 antihydrogen atoms in place, each for a fraction of a second.

Antihydrogen has been produced before but it was instantly destroyed when it encountered normal matter.

The team, reporting in Nature, says the ability to study such antimatter atoms will allow previously impossible tests of fundamental tenets of physics.

The current "standard model" of physics holds that each particle - protons, electrons, neutrons and a zoo of more exotic particles - has its mirror image antiparticle.

The antiparticle of the electron, for example, is the positron, and is used in an imaging technique of growing popularity known as positron emission tomography.

However, one of the great mysteries in physics is why our world is made up overwhelmingly of matter, rather than antimatter; the laws of physics make no distinction between the two and equal amounts should have been created at the Universe's birth.

Slowing anti-atoms

Producing antimatter particles like positrons and antiprotons has become commonplace in the laboratory, but assembling the particles into antimatter atoms is far more tricky.

That was first accomplished by two groups in 2002. But handling the "antihydrogen" - bound atoms made up of an antiproton and a positron - is trickier still because it must not come into contact with anything else.

While trapping of charged normal atoms can be done with electric or magnetic fields, trapping antihydrogen atoms in this "hands-off" way requires a very particular type of field.

"Atoms are neutral - they have no net charge - but they have a little magnetic character," explained Jeff Hangst of Aarhus University in Denmark, one of the collaborators on the Alpha antihydrogen trapping project.

(Excerpt) Read more at bbc.co.uk ...


TOPICS: Chit/Chat; Science
KEYWORDS: antihydrogen; antimatter; cern; firsttime; hadron; largehadroncollider; scientists; stringtheory; trapped
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1 posted on 11/17/2010 2:08:45 PM PST by NormsRevenge
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GreenPeace, The ACLU and CAIR immediately called for a release of the atom and halt to any further trapping of poor innocent antimatter atoms.


2 posted on 11/17/2010 2:10:26 PM PST by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard .. Obama: Epic Fail or Bust!!!)
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To: NormsRevenge
Playing with fire, are they not?

I've watched Star Trek enough to know what happens when matter and anti-matter collide. :)

3 posted on 11/17/2010 2:11:32 PM PST by TexasCajun
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To: NormsRevenge

On the other-hand someone may be watching too much Star Trek..


4 posted on 11/17/2010 2:12:47 PM PST by hosepipe (This propaganda has been edited to include some fully orbed hyperbole....)
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It was just a matter of time before they hunted him down.

You're probably wondering what exactly an antimatter atom looks like and how it behaves.

Me too. :-}

5 posted on 11/17/2010 2:13:18 PM PST by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard .. Obama: Epic Fail or Bust!!!)
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6 posted on 11/17/2010 2:14:25 PM PST by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard .. Obama: Epic Fail or Bust!!!)
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To: NormsRevenge

Where to they get the antimatter? Do they make it?


7 posted on 11/17/2010 2:18:34 PM PST by Jewbacca (The residents of Iroquois territory may not determine whether Jews may live in Jerusalem.)
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To: TexasCajun

There is some chance that the CERN experiments could lead to the end of the world, and perhaps the end of the universe.

It is a infinitesimal chance, but it is a chance.

My guess, somewhere between one in a million and one in a billion billion.


8 posted on 11/17/2010 2:23:38 PM PST by MindBender26 (Fighting the "con" in Conservatism on FR since 1998.)
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To: Jewbacca

Dilithium crystals?


9 posted on 11/17/2010 2:23:49 PM PST by Sybeck1 (Conservative yes, Republican no.)
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To: TexasCajun
I've watched Star Trek enough to know what happens when matter and anti-matter collide

Yeah. They cut to commercial.

10 posted on 11/17/2010 2:24:13 PM PST by UCANSEE2 (Lame and ill-informed post)
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To: NormsRevenge

“Antimatter atoms have been trapped for the first time, scientists say. “

LET IT GO! It was born free and should live free!


11 posted on 11/17/2010 2:24:18 PM PST by aMorePerfectUnion
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To: NormsRevenge


Frowning takes 68 muscles.
Smiling takes 6.
Pulling this trigger takes 2.
I'm lazy.

12 posted on 11/17/2010 2:29:02 PM PST by The Comedian (I enjoy progressives, especially in a light cream sauce.)
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To: MindBender26
My guess, somewhere between one in a million and one in a billion billion.

LOL

Nah, you're way off. It's more like somewhere between one in a thousand billion and one in a trillion billion thousand... give or take a few.

13 posted on 11/17/2010 2:29:25 PM PST by Talisker (When you find a turtle on top of a fence post, you can be damn sure it didn't get there on its own.)
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To: TexasCajun

I certainly don’t want to experience a warp core breach!


14 posted on 11/17/2010 2:32:54 PM PST by RobRoy (The US Today: Revelation 18:4)
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To: NormsRevenge

She kenna take any more Keptain! She’s ginna blow!


15 posted on 11/17/2010 2:34:36 PM PST by Seruzawa (If you agree with the French raise your hand - If you are French raise both hands.)
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To: NormsRevenge
These scientists better be damn careful.

Matter:

Antimatter:

16 posted on 11/17/2010 2:37:38 PM PST by Talisker (When you find a turtle on top of a fence post, you can be damn sure it didn't get there on its own.)
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To: TexasCajun
I've watched Star Trek enough to know what happens when matter and anti-matter collide. :)

"Annihilation Jim. Total, complete, absolute annihilation."

17 posted on 11/17/2010 2:41:57 PM PST by dartuser ("The difference between genius and stupidity is genius has limits.")
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To: MindBender26

The biggest problem with things that can happen is if you keep trying eventually they will happen.


18 posted on 11/17/2010 2:44:43 PM PST by Domandred (Fdisk, format, and reinstall the entire .gov system.)
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To: Talisker

Point well taken.

CA....


19 posted on 11/17/2010 2:49:24 PM PST by Chances Are (Seems I've found that silly grin again....)
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To: NormsRevenge

Its a good thing those Europeans have wasted billions of dollars so they could trap 38 sub-atomic particles for a fraction of a second. We wouldn’t want them to waste that money trying to improve the economies of Portugal, Spain, or Ireland, or anything like that. And you know, for just a few dozen billion dollars more those godless scientists will start to come up with an idea how to actually make something useful with their big fancy expensive plaything.


20 posted on 11/17/2010 2:49:39 PM PST by GreatJoeMcCarthy
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