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 Cepheus
Balance
 
Registered: 04/19/06
Posts: 5,120
Loc: the space between reality...
Last seen: 9 hours, 51 minutes
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 A dichotomy
#8322957 - 04/24/08 12:18 PM (6 months, 26 days ago) |
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A meson is a boson (which is part of the hadron family so it is subjected to the strong nuclear force), which consists of a quark and its anti-quark.
Why don't these 2 fundamental particles annihilate each other? Surely the electrostatic attraction between these particles would allow for them to collide with sufficient energy?
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Cepheus
"Facts do not cease to exist because they are ignored" ~ Aldous Huxley.
 "The sun may set in the west, but it will always rise again in the east the next morning"
Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution 
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Cepheus
Balance
Registered: 04/19/06
Posts: 5,120
Loc: the space between reality...
Last seen: 9 hours, 51 minutes
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Re: A dichotomy [Re: Cepheus]
#8322993 - 04/24/08 12:30 PM (6 months, 26 days ago) |
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Also, I'm looking for a decent resource for information regarding particle / nuclear physics.. wikipedia is only so useful and a lot of the information present is somewhat incomplete..
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Cepheus
"Facts do not cease to exist because they are ignored" ~ Aldous Huxley.
"The sun may set in the west, but it will always rise again in the east the next morning"
Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution
Open Source. Freedom. GNU/Linux
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DieCommie
Ally
Registered: 12/11/03
Posts: 7,382
Loc: The Union
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Re: A dichotomy [Re: Cepheus]
#8324726 - 04/24/08 09:03 PM (6 months, 26 days ago) |
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They probably exist in a bound state and then decay, kind of like how a positronium 'atom' can exist in a bound state for a short time before decaying. I dont really know.
If you want a decent resource you probably want a used textbook, no?
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Behold yon miserable creature. That Point is a Being like ourselves, but confined to the non-dimensional Gulf. He is himself his own World, his own Universe; of any other than himself he can form no conception; he knows not Length, nor Breadth, nor Height, for he has had no experience of them; he has no cognizance even of the number Two; nor has he a thought of Plurality; for he is himself his One and All, being really Nothing. Yet mark his perfect self-contentment, and hence learn his lesson, that to be self-contented is to be vile and ignorant, and that to aspire is better than to be blindly and impotently happy.
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Cepheus
Balance
Registered: 04/19/06
Posts: 5,120
Loc: the space between reality...
Last seen: 9 hours, 51 minutes
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Well... I figured it out.
For a particle to annihilate they have to be the exact opposite of the other particle, i.e.; the same mass, the same (yet opposite) charge (i.e 2/3 and -2/3) and have the same (yet opposite) spin.
Also the interaction between the 2 quarks is limited by the gluons 
so something like a pi meson (up and upbar) doesn't annihilate..
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Cepheus
"Facts do not cease to exist because they are ignored" ~ Aldous Huxley.
"The sun may set in the west, but it will always rise again in the east the next morning"
Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution
Open Source. Freedom. GNU/Linux
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