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Topic: Exotic (hadron)

	Info and facts on 'Hadron' (Site not responding. Last check: 2007-10-11)
		Hadrons are composite particles bound together by the color interaction, and thus are somewhat analogous to atoms, in which particles are bound together by the electromagnetic interaction (An interaction between charged elementary particles that is intermediate in strength between the strong and weak interactions; mediated by photons).
		Hadrons are further classified by their spin (A swift whirling motion (usually of a missile)) and quark content.
		Meson (An elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0) s are composed of a quark and an anti-quark and have integral spin, i.e.
	www.absoluteastronomy.com /encyclopedia/h/ha/hadron.htm (510 words)

	Meson - Wikipedia, the free encyclopedia
		In particle physics, a meson is a strongly interacting boson, that is, it is a hadron with integral spin.
		In the Standard Model, mesons are composite (non-elementary) particles composed of an even number of quarks and antiquarks.
		Quark t never forms hadrons, but a symbol for t-containing mesons is reserved anyway.
	en.wikipedia.org /wiki/Meson (1161 words)

	Big Bang - EvoWiki (Site not responding. Last check: 2007-10-11)
		The lightest one of these will not be able to decay into any other particle, and will thus survive.
		More exotic than dark matter is "dark energy", which is inferred from recent measurements of the Universe's expansion -- it seems to be accelerating.
		This requires that some of the Universe's mass have a negative pressure comparable to its mass-energy density.
	www.evowiki.org /index.php/Big_Bang (2026 words)

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