Talk:Hadron

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Help with this template Comments: edit – history – watch – refresh This page is of no help to a layman not already familiar with the subject. A definition should use known ideas to explain unknown ideas. The Science and Technology Encyclopedia says examples of hadrons are protons and neutrons as well as certain mesons. Protons and neutrons are something every school kid knows about. The Wikipedia definition/description should indicate right off the bat that protons and neutrons are examples of hadrons.

Contents 1 Zoo of elementary particles 2 "class" of Hadrons? 3 Link change 4 Not Clear what a Hadron is 5 There used to be a computer game called Hadron... 6 Hadron 2.1, maybe? 7 Diagram

[edit] Zoo of elementary particles

look here - http://math.ucr.edu/home/baez/physics/ParticleAndNuclear/particle_zoo.html or here - http://pdg.lbl.gov/

-F

[edit] "class" of Hadrons?

The article, Hadron, contain this assertion:

 The class of hadrons is further subdivided into three subclasses

Does Physics have a formal classification system like Biology does? Bevo 14:54, 15 Feb 2004 (UTC)

In a sense, the representations of Lie groups provide the formal classification system. --Matt McIrvin 00:34, 1 Oct 2004 (UTC)

[edit] Link change

Link to "Color Force" Might better go to Color charge instead of Quantum Chromodynamics. Thanks, (Jon) Aug 26, 2563

[edit] Not Clear what a Hadron is

I guess that this is due to the intrinsic nature of Hadrons. But a reader can be confuesed. The first paragraph asserts that adrons are not fundamental particle, I would change fundamental with elementary. But the last asserts that hadrons due to confinement are single particle exitation. Maybe a page which explains the difference between single particle excitation and elementary particle would be interesting. I guess that hadrons phylosophically just introduce a new concept. They are neither elemtary nor composed (they cannot be splitted). The fact that they can disappear in other phases of the theory it isn't relvant. It is like saying that ice disappears and melts in water. If you read something like this do you understand anything more about what really is ice? Maybe after you undertsand what ice is it is intersting to notice that it is built up from the same molecules then water. Guess it is very difficult to explain something that we still don't understand deeply. I hope that this observation could help

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I agree with this observation. The first paragraph is unclear, and contains a hidden contradiction.

"A hadron, in particle physics, is a subatomic particle which experiences the nuclear force. These are not fundamental particles but are composed of fermions, called quarks and antiquarks, and of bosons, called gluons. The gluons mediate the color force that binds the quarks together."

If hadrons are "... composed of fermions ...", then since (para 3)"baryons are fermions", this contradicts "these are not fundamental particles", since some baryons include protons and neutrons.

Furthermore, the word "these" in the leading sentence is vague, as several nouns are referred to in the preceding sentence.

In fact, Merriam-Webster online defines hadron as: "Any of the subatomic particles (as protons and neutrons) that are made up of quarks and are subject to the strong force."

Consequently I'm improving the second sentence today ... but it's still too involved.

I recommend that someone more familiar with particle physics bring the definition more in line with Britannica concise (http://concise.britannica.com/ebc/article-9366403/hadron). Twang 01:30, 13 July 2007 (UTC)

[edit] There used to be a computer game called Hadron...

Back in 1980 or 1981, a friend had an amazing video game called Hadron running on his Apple computer. I'm astonished that there seems to be no record of it. The game was obviously named for the atomic particle, even though the atomic particle had nothing to do with the space adventure in 3D. If anyone has ever heard of the game, remembers playing it, or knows how to locate a version that would run on today's PCs, I'd love to see it posted here!

[edit] Hadron 2.1, maybe?

...well, try this one: http://mac.softpedia.com/get/Games/Hadron.shtml. :o)

Sorry, guys, I am a fresh meat here...

M* —The preceding unsigned comment was added by Bycyq (talk • contribs) 23:49, 11 May 2007 (UTC).

[edit] Diagram

I think a coloured diagram might well explain where Hadrons stand among other particles, the article in its current form is rather confusing. I will on the diagram though. Λua∫Wise ^{(Operibus anteire)} 13:24, 29 February 2008 (UTC)