Hadron: Difference between revisions
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A '''hadron''' (pronounced ''hay-dron'', and based upon the Greek ''hadr''=strong) is a composite particle subject to the strong nuclear force (and possibly to weak and electromagnetic forces too), such as a [[meson]], [[proton]] or a [[neutron]].<ref name=Quinn/> | A '''hadron''' (pronounced ''hay-dron'', and based upon the Greek ''hadr''=strong) is a composite particle subject to the strong nuclear force (and possibly to weak and electromagnetic forces too), such as a [[meson]] (a [[quark]] and an antiquark paired in various ways), [[proton]] (two up quarks and one down quark), or a [[neutron]] (two down quarks and one up quark).<ref name=Lincoln/><ref name=Quinn/> In general, hadrons are particles made up of [[quark]]s, antiquarks, and [[gluon]]s. They are described by [[quantum chromodynamics]].<ref name=Susskind/> | ||
==References== | ==References== | ||
{{Reflist|refs= | {{Reflist|refs= | ||
<ref name=Lincoln> | |||
{{cite book |title=Understanding the universe: from quarks to the cosmos |author=Don Lincoln |pages=p. 115 |url=http://books.google.com/books?id=1gFioQea39UC&pg=PA115 |isbn=9812387056 |year=2004 |publisher=World Scientific}} | |||
</ref> | |||
<ref name=Quinn> | <ref name=Quinn> | ||
Revision as of 15:46, 20 August 2011
A hadron (pronounced hay-dron, and based upon the Greek hadr=strong) is a composite particle subject to the strong nuclear force (and possibly to weak and electromagnetic forces too), such as a meson (a quark and an antiquark paired in various ways), proton (two up quarks and one down quark), or a neutron (two down quarks and one up quark).[1][2] In general, hadrons are particles made up of quarks, antiquarks, and gluons. They are described by quantum chromodynamics.[3]
References
- ↑ Don Lincoln (2004). Understanding the universe: from quarks to the cosmos. World Scientific, p. 115. ISBN 9812387056.
- ↑ Helen R. Quinn, Yossi Nir (2010). The Mystery of the Missing Antimatter. Princeton University Press, p. 249. ISBN 1400835712.
- ↑ Leonard Susskind (2005). The cosmic landscape: string theory and the illusion of intelligent design. Hachette Digital, Inc., p. 159. ISBN 0316155799.