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Difference between revisions of "K-meson"

(Created page with "==Key Stage 5== ===Meaning=== A '''K-meson''' is a type of meson which has a strangeness of +1 or -1. ===About K-mesons=== ''NB: You do not need to memorise the exact...")
 
 
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===About K-mesons===
 
===About K-mesons===
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: '''K-mesons''' [[Radioactive Decay|decay]] via the [[Weak Nuclear Interaction|weak interaction]] to produce [[π-meson]]s. In this case [[strangeness]] is not conserved.
 
''NB: You do not need to memorise the exact composition of a given '''K-meson'''. However, you should be able to determine a possible [[quark]] composition given the [[Electrical Charge|charge]] and [[strangeness]] of the [[meson]] and by remembering the properties of the [[up-quark]], [[down-quark]] and [[strange-quark]].''
 
''NB: You do not need to memorise the exact composition of a given '''K-meson'''. However, you should be able to determine a possible [[quark]] composition given the [[Electrical Charge|charge]] and [[strangeness]] of the [[meson]] and by remembering the properties of the [[up-quark]], [[down-quark]] and [[strange-quark]].''
 
: '''K-meson''' may consist of:
 
: '''K-meson''' may consist of:

Latest revision as of 15:11, 18 July 2019

Key Stage 5

Meaning

A K-meson is a type of meson which has a strangeness of +1 or -1.

About K-mesons

K-mesons decay via the weak interaction to produce π-mesons. In this case strangeness is not conserved.

NB: You do not need to memorise the exact composition of a given K-meson. However, you should be able to determine a possible quark composition given the charge and strangeness of the meson and by remembering the properties of the up-quark, down-quark and strange-quark.

K-meson may consist of:
  • Up-antistrange quark pair (\(K^+\)).
  • Down-antistrange quark pair (\(K^0\)).
  • Strange-antiup quark pair (\(K^-\)).
  • Strange-antidown quark pair (\(\bar{K}^-\)).