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| Wolf |
 Posted: Sun May 20, 2007 6:53 pm Post subject: Anti-Graviton Mass Generation |
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Forum Lycanthrope
Joined: 15 May 2007
Posts: 1014
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It's almost impossible to find good information on anti-gravitons without getting pelted by a thousand geek-built websites on Star-Trek.  It's frustrating when yer trying to figure something out.
We know that if you take an atom, and it's anti-equivalent, and combine them, they will annihilate each other. Their annihilation produces energy. This is great and all, but what happens when a graviton and an anti-graviton combine?
We would assume that the result would be energy, but as Einstein said, energy = mass. So essentially the annihilation would produce mass, but does that mean the anti-gravitons are being destroyed, leaving behind gravitons?
I probably need to poke at that some more, but any help would be appreciated!  |
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| Wolf |
| Posted: Mon May 21, 2007 4:25 pm Post subject: |
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Forum Lycanthrope
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| Wow, not a single response. I'm disappointed. |
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| Wolf |
| Posted: Wed May 23, 2007 12:43 pm Post subject: |
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Forum Lycanthrope
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Hmm, all the know-it-alls seem to be hiding in the theology section... 
Anywho, to further my question:
If you could produce a mass wave or gravity wave, perhaps you could in theory produce gravitons through pair creation? That's assuming you could produce such a wave to begin with without already having gravitons or a mass.
Eagerly awaiting the cognition of others.  |
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| Harold14370 |
| Posted: Wed May 23, 2007 2:36 pm Post subject: |
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Forum Professor
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| Considering that the graviton is only a hypothetical particle, any discussion of anti-gravitons probably belongs on the Star Trek web sites. |
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| marnixR |
| Posted: Wed May 23, 2007 3:36 pm Post subject: |
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Forum Cosmic Wizard
Joined: 10 Apr 2007
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| Harold14370 wrote: |
| Considering that the graviton is only a hypothetical particle, any discussion of anti-gravitons probably belongs on the Star Trek web sites. |
on the other hand, you could always do a thought experiment
question 1 = what are the properties of the graviton ?
question 2 = in what sense would the anti-graviton be the opposite of the graviton ?
i can only pose the question, i don't know enough about particle physics to even have an inkling of an answer 
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| Wolf |
| Posted: Thu May 24, 2007 7:50 am Post subject: |
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Forum Lycanthrope
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I got this response from another forum:
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| Gravitons (if they exist) are their own antiparticles. A graviton and another graviton could annihilate and produce any particle which has a mass lower than that allowed by the graviton-graviton system. This does not, however, result in the creation of more mass, since any mass was already contained in the system |
So it would appear that gravitons behave like neutrinos (which also don't have charges). Still wrapping my head around what interactions might be like, and where the lost mass goes (I'm assuming light) but this is progress. |
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| Harold14370 |
| Posted: Thu May 24, 2007 8:16 am Post subject: |
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Forum Professor
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Posts: 1263
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| Wolf wrote: |
I got this response from another forum:
| Quote: |
| Gravitons (if they exist) are their own antiparticles. A graviton and another graviton could annihilate and produce any particle which has a mass lower than that allowed by the graviton-graviton system. This does not, however, result in the creation of more mass, since any mass was already contained in the system |
So it would appear that gravitons behave like neutrinos (which also don't have charges). Still wrapping my head around what interactions might be like, and where the lost mass goes (I'm assuming light) but this is progress. |
Did the poster from the other forum know what they were talking about or were they just spouting gobbledygook. I don't know enough about the theory to say and I don't think you do either. |
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| Wolf |
| Posted: Thu May 24, 2007 9:00 am Post subject: |
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Forum Lycanthrope
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Probably, considering it was a forum specifically geared towards physics, with its own quantum physics section.
That, and they came right out and addressed the question head on.
It's all a deja-vu experience for me, kinda. I used to know a lot of this stuff, but haven't dealt with it in so long that those sections of my brain have gathered dust. |
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| marnixR |
| Posted: Thu May 24, 2007 9:00 am Post subject: |
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Forum Cosmic Wizard
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Location: Cardiff, Wales
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surely if a particle is its own anti-particle it's likely to be rather short-lived
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if you find this place too crowded or too confrontational, how about trying Philosophorum,
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biology without evolution is but stamp collecting |
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| Wolf |
| Posted: Thu May 24, 2007 9:08 am Post subject: |
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Forum Lycanthrope
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| marnixR wrote: |
| surely if a particle is its own anti-particle it's likely to be rather short-lived |
What it means is that there is no actual anti-particle.
In standard annihilation, you have positively charged particles, and negatively charged particles. Depending on yer perspective, one is the particle and the other the anti-particle. If the particle does not have a charge, it cannot have an anti-particle pair. Neutrinos are assumed to be such an example of particles without an anti-particle.
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Wolf
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"Be fair with others, but then keep after them until they're fair with you." Alan Alda |
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