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Old 11-18-2010, 06:45 PM #1
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Default Another Breakthrough at CERN

Scientists claim breakthrough in antimatter hunt - Yahoo! News

Anyone ever heard of antimatter?

They're going to try shining lasers at antimatter now...

What do you all know about this?


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Old 11-18-2010, 06:57 PM #2
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Default Re: Another Breakthrough at CERN

About as much as what ever they post. You can always see the latest news from cern by going here: CERN Press Office
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Old 11-18-2010, 07:13 PM #3
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Default Re: Another Breakthrough at CERN

What they are trying to prove that ultimatelly something exists! When they sent two light particles through a 27km long tube they discovered that that eventhough the particles are at different places they behave exactly the same way which would make the scientist conclude that space is information.
Also when they emptied a box of particles new ones appeared aspecially at the places where they thought about them while particles could be split untill nothing had left.
This can bring one to the conclusion that ultimatelly nothing exists and space is the ultimate matter.

Similar to some ancient wisdom saying: form is emptiness, emptiness is form form and emptiness can not be seperated.
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Old 11-18-2010, 08:34 PM #4
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Default Re: Another Breakthrough at CERN

Quote:
Originally Posted by Laha View Post
What they are trying to prove that ultimatelly something exists! When they sent two light particles through a 27km long tube they discovered that that eventhough the particles are at different places they behave exactly the same way which would make the scientist conclude that space is information.
Also when they emptied a box of particles new ones appeared aspecially at the places where they thought about them while particles could be split untill nothing had left.
This can bring one to the conclusion that ultimatelly nothing exists and space is the ultimate matter.

Similar to some ancient wisdom saying: form is emptiness, emptiness is form form and emptiness can not be seperated.
Ummmm...what?

As best as I can tell, I think you have somehow managed to combine the ideas of antiparticles/antimatter, vacuum fluctuations, quantum entanglement/spooky action at a distance, quantum tunneling, the Copenhagen interpretation/wavefunction collapse, superposition, energy conversion, mass/energy duality (E=mc^2), and a 2000-year old Buddhist text into a single incoherent post.

I'm actually kindof impressed.

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Old 11-18-2010, 10:49 PM #5
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Default Re: Another Breakthrough at CERN

does light also exist as anti-matter?
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Old 11-19-2010, 12:00 AM #6
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Default Re: Another Breakthrough at CERN

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does light also exist as anti-matter?
No, because light does not have charge.
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Old 11-19-2010, 12:02 AM #7
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Default Re: Another Breakthrough at CERN

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No, because light does not have charge.
Please refine this point.

A neutron has no electrical charge, yet it still has an antiparticle: an antineutron, which also has no electrical charge. I'm not saying you're wrong, I'm not saying you're right, but your explanation does not answer the question.

ETA:

Well, I guess I'll go ahead and answer it. Opposite electrical charge is not the sole requirement of an antiparticle, the particle can be zero charge and be opposite in other senses, such as the case with neutron/antineutrons.

In some sense, photons are their own antiparticles. Here's a link: http://van.physics.illinois.edu/qa/listing.php?id=1153

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Old 11-19-2010, 12:04 AM #8
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Default Re: Another Breakthrough at CERN

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Originally Posted by pullbangdead View Post
Please refine this point.

A neutron has no electrical charge, yet it still has an antiparticle: an antineutron, which also has no electrical charge. I'm not saying you're wrong, I'm not saying you're right, but your explanation does not answer the question.
That's right, but a neutron's constituent quarks contain charge.
In fact that's not completely correct either: http://en.wikipedia.org/wiki/Anti-neutron
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Old 11-19-2010, 01:02 PM #9
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Talking Re: Another Breakthrough at CERN

Beware the photons, they are "undecided" items

Then also, do you mean antiphotons in particle state, or in wave state ? ..... in wave state, you can "sum" two identical photons with phase rotated by 180 degrees, and this gives you theorically zero (one elide the other, so theorically any photon of a given wavelenght can be the antiphoton of another photon with the same wavelenght, with phase rotated 180 degrees ) ..... and as particle, how can be said that they have no charge, if they carry energy ? (put your finger in a high power laser beam, if you don't trust that they carry energy ..... J/K )

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@Laha: do you mean the old "will is power" thing ? ..... it don't work ..... i've tried with all my will to create money, you don't imagine how much i tried ..... but still no money .....
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Old 11-19-2010, 04:19 PM #10
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Default Re: Another Breakthrough at CERN

HIMNL9, who said it was your turn to make an incoherent post?
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Old 11-19-2010, 04:49 PM #11
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Talking Re: Another Breakthrough at CERN

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HIMNL9, who said it was your turn to make an incoherent post?
Well, i just throw two dices, and the result was 13, so .....

..... hmmm ..... i need to sleep a bit more, perhaps .....
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Old 11-19-2010, 08:49 PM #12
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Default Re: Another Breakthrough at CERN

{Soup Nazi says}

NO QUARK-GLUON SOUP FOR YOU!!!

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Old 11-20-2010, 08:06 AM #13
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Talking Re: Another Breakthrough at CERN

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{Soup Nazi says}

NO QUARK-GLUON SOUP FOR YOU!!!

WHAT ?!??

We WANT our yellow gluons soup ..... Aux arms les Citoyens !! ..... RIOT, RIOT !!

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Old 11-20-2010, 10:49 AM #14
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Default Re: Another Breakthrough at CERN

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Beware the photons, they are "undecided" items

Then also, do you mean antiphotons in particle state, or in wave state ? ..... in wave state, you can "sum" two identical photons with phase rotated by 180 degrees, and this gives you theorically zero (one elide the other, so theorically any photon of a given wavelenght can be the antiphoton of another photon with the same wavelenght, with phase rotated 180 degrees ) ..... and as particle, how can be said that they have no charge, if they carry energy ? (put your finger in a high power laser beam, if you don't trust that they carry energy ..... J/K )
Destructive interference does not give us energy so it can't be an anti 'particle' since it doesn't 'give up' energy. Even when anti-particles annihilate, the energy release is in the form of EM waves and near negligible kinetic energy from neutrinos and other such weakly interacting particles. So even if the wave is out of phase by pi (or 180 degrees as normal people prefer :P), it just means the E fields are pointing in opposite directions, summing to zero, which means the intensity is zero since intensity is proportional to the square of the magnitude of the electric field.

Also, photons have no charge because as EM waves, which is extended into QED, they must satisfy the Wave Equation which requires for the divergence of the E and B fields to be zero, with the divergence of the E field suggesting that there is no bound charge within any volume.

That being said, I wish I had my muon-catalyzed fusion reactor.

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Old 11-20-2010, 01:27 PM #15
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Default Re: Another Breakthrough at CERN

But, independently for "charge", what about "energy" ?

Suppose to cause destructive interference between two 1W laser beams ..... you know that energy cannot be vanished, right ? ..... also if their fields are pointing in opposite directions and summing to zero, you're still shooting 2W of energy ..... you can't simply found it with nothing, right ? (this for the serious part)

For the fun part, i know that a 180 degrees phased photon cannot be defined an antiphoton, it was a word joke .....

Anyway, usual theories says they have "theorically" no mass ..... or, at least, no "rest" mass, with lepton, barion and flavour quantum numbers all to zero ..... but, as far as i know, does not exists photons in "rest" state (i just can't imagine a stopped photon ..... maybe in a stasis field ..... but never talk about stasis fields with "real" scentists, if you don't want to risk to be shooted ) ..... and also, black holes attract them, and a mass of zero must not be attracted from anything, being gravity a function of mass ..... and again, they act as waves in some experiments, and as particles in some others (for this i was saying that they are "undecided" items ) ..... and for the same considerations, they have theorically no intrinsic charge ..... but you cannot negate that they carry energy, right ? ...... so, what's the "state" of this energy ? ..... EM ? ..... but then, what exactly is EM energy ? (note: you have not more than 10 words, for explain what's EM energy ..... )
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Old 11-20-2010, 01:50 PM #16
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Default Re: Another Breakthrough at CERN

As suggested, the energy of an EM wave is contained in the electric and magnetic field of the wave, since intensity is proportional to the square of the magnitude of the electric field.
That's right. That's where diffraction patterns come in, which if you add up the energy distributed over the whole area, should equal to the power being delivered.
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