Meson - Revision history

NRJC: /* Examples */

2021-09-12T09:40:59Z

‎Examples

NRJC: /* Examples */

2019-07-28T08:31:08Z

‎Examples

NRJC: /* Determining Meson Composition */

2019-07-18T15:47:20Z

‎Determining Meson Composition

NRJC: /* Examples */

2019-07-18T15:25:56Z

‎Examples

NRJC: /* Examples */

2019-07-18T15:25:37Z

‎Examples

NRJC: /* Examples */

2019-07-18T15:25:00Z

‎Examples

NRJC: /* Examples */

2019-07-18T15:24:40Z

‎Examples

NRJC at 15:12, 18 July 2019

2019-07-18T15:12:47Z

NRJC: /* Determining Meson Composition */

2019-07-18T15:00:33Z

‎Determining Meson Composition

NRJC: /* Examples */

2019-07-18T14:42:52Z

‎Examples

@@ Line 103: / Line 103: @@
 Since <math>-1 = -\frac{1}{3} + -\frac{2}{3}</math>
-Therefore <math>K^- = S + \bar{u}</math>
+Therefore <math>K^- = s + \bar{u}</math>
 A strange-antiup pair.
 |}

@@ Line 31: / Line 31: @@
 |-
 | style="height:20px; width:200px; text-align:center;"|
-[[Up-quark]]
+[[Up-quark]] (<math>u</math>)
 | style="height:20px; width:200px; text-align:center;"|<math>q=+\frac{2}{3}</math>
@@ Line 38: / Line 38: @@
 |-
 | style="height:20px; width:200px; text-align:center;"|
-[[Antiup-quark]]
+[[Antiup-quark]] (<math>\bar{u}</math>)
 | style="height:20px; width:200px; text-align:center;"|<math>q=-\frac{2}{3}</math>
@@ Line 45: / Line 45: @@
 |-
 | style="height:20px; width:200px; text-align:center;"|
-[[Down-quark]]
+[[Down-quark]] (<math>d</math>)
 | style="height:20px; width:200px; text-align:center;"|<math>q=-\frac{1}{3}</math>
@@ Line 52: / Line 52: @@
 |-
 | style="height:20px; width:200px; text-align:center;"|
-[[Antidown-quark]]
+[[Antidown-quark]] (<math>\bar{d}</math>)
 | style="height:20px; width:200px; text-align:center;"|<math>q=+\frac{1}{3}</math>
@@ Line 58: / Line 58: @@
 |-
 | style="height:20px; width:200px; text-align:center;"|
-[[Strange-quark]]
+[[Strange-quark]] (<math>s</math>)
 | style="height:20px; width:200px; text-align:center;"|<math>q=-\frac{1}{3}</math>
@@ Line 65: / Line 65: @@
 |-
 | style="height:20px; width:200px; text-align:center;"|
-[[Antistrange-quark]]
+[[Antistrange-quark]] (<math>\bar{s}</math>)
 | style="height:20px; width:200px; text-align:center;"|<math>q=+\frac{1}{3}</math>

@@ Line 99: / Line 99: @@
 <math>-1 = -\frac{1}{3} + x</math>
-K<sup>-</sup> has a [[Negative Charge|negative charge]]. This can be achieved with one its [[strange-quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>[[Elementary Charge|e]] and another [[Electrical Charge|charge]] of <math>-\frac{2}{3}</math>[[Elementary Charge|e]] (an [[antiup-quark]]).
+K<sup>-</sup> has a [[Negative Charge|negative charge]]. This can be achieved with its [[strange-quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>[[Elementary Charge|e]] and another [[Electrical Charge|charge]] of <math>-\frac{2}{3}</math>[[Elementary Charge|e]] (an [[antiup-quark]]).
 Since <math>-1 = -\frac{1}{3} + -\frac{2}{3}</math>

@@ Line 83: / Line 83: @@
 '''[[Electrical Charge|Charge]]'''
-π<sup>+</sup> has a [[Positive Charge|positive charge]]. This can be achieved with one [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>/[[Elementary Charge|e]] (an [[up-quark]]) and <math>+\frac{1}{3}</math>/[[Elementary Charge|e]] (an [[antidown-quark]]).
+π<sup>+</sup> has a [[Positive Charge|positive charge]]. This can be achieved with one [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>[[Elementary Charge|e]] (an [[up-quark]]) and <math>+\frac{1}{3}</math>[[Elementary Charge|e]] (an [[antidown-quark]]).
 Since <math>+1 = +\frac{2}{3} + \frac{1}{3}</math>
@@ Line 99: / Line 99: @@
 <math>-1 = -\frac{1}{3} + x</math>
-K<sup>-</sup> has a [[Negative Charge|negative charge]]. This can be achieved with one its [[strange-quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>/[[Elementary Charge|e]] and another [[Electrical Charge|charge]] of <math>-\frac{2}{3}</math>/[[Elementary Charge|e]] (an [[antiup-quark]]).
+K<sup>-</sup> has a [[Negative Charge|negative charge]]. This can be achieved with one its [[strange-quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>[[Elementary Charge|e]] and another [[Electrical Charge|charge]] of <math>-\frac{2}{3}</math>[[Elementary Charge|e]] (an [[antiup-quark]]).
 Since <math>-1 = -\frac{1}{3} + -\frac{2}{3}</math>

@@ Line 83: / Line 83: @@
 '''[[Electrical Charge|Charge]]'''
-π<sup>+</sup> has a [[Positive Charge|positive charge]]. This can be achieved with one [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math> (an [[up-quark]]) and <math>+\frac{1}{3}</math> (an [[antidown-quark]]).
+π<sup>+</sup> has a [[Positive Charge|positive charge]]. This can be achieved with one [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>/[[Elementary Charge|e]] (an [[up-quark]]) and <math>+\frac{1}{3}</math>/[[Elementary Charge|e]] (an [[antidown-quark]]).
 Since <math>+1 = +\frac{2}{3} + \frac{1}{3}</math>
@@ Line 99: / Line 99: @@
 <math>-1 = -\frac{1}{3} + x</math>
-K<sup>-</sup> has a [[Negative Charge|negative charge]]. This can be achieved with one its [[strange-quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math> and another [[Electrical Charge|charge]] of <math>-\frac{2}{3}</math> (an [[antiup-quark]]).
+K<sup>-</sup> has a [[Negative Charge|negative charge]]. This can be achieved with one its [[strange-quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>/[[Elementary Charge|e]] and another [[Electrical Charge|charge]] of <math>-\frac{2}{3}</math>/[[Elementary Charge|e]] (an [[antiup-quark]]).
 Since <math>-1 = -\frac{1}{3} + -\frac{2}{3}</math>

@@ Line 27: / Line 27: @@
 |+ This table is for referencing the properties of the [[quark]]s.
 | style="height:20px; width:200px; text-align:center;"|'''[[Quark]]'''
-| style="height:20px; width:200px; text-align:center;"|[[Electrical Charge|'''Charge'''/[[Elementary Charge|e]]]]
+| style="height:20px; width:200px; text-align:center;"|[[Electrical Charge|'''Charge''']]/[[Elementary Charge|e]]
 | style="height:20px; width:200px; text-align:center;"|'''[[Strangeness]]'''
 |-

@@ Line 5: / Line 5: @@
 ===About Mesons===
 : '''Mesons''' have a very short [[Half Life|half life]], [[Radioactive Decay|decaying]] via the [[Weak Nuclear Interaction|weak nuclear interaction]] or though the [[quark]]-[[antiquark]] pair [[annihilation|annihilating]] one another.
-: '''Mesons''' consisting of the [[quark]]s; [[up-quark]], [[down-quark]] and [[strange-quark]] are divided into two main categories; [[π-meson]]s and [[k-mesons]]s.
+: '''Mesons''' consisting of the [[quark]]s; [[up-quark]], [[down-quark]] and [[strange-quark]] are divided into two main categories; [[π-meson]]s and [[k-meson]]s.
 : '''[[K-meson]]s''' have a [[strangeness]] of +1 or -1. However, [[π-meson]]s do not carry [[strangeness]].
 : '''Mesons''' are affected by the:

@@ Line 14: / Line 14: @@
 ===Determining Meson Composition===
-''NB: You do not need to memorise the exact composition of a given '''meson'''. However, you should be able to determine the [[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 '''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]].''
 : '''Mesons''' can be shown in the following diagram:
 {| border="1" style="border-collapse:collapse"

@@ Line 78: / Line 78: @@
 | style="height:20px; width:300px; text-align:left;" |
 '''[[Strangeness]]'''
 π<sup>+</sup> has a [[strangeness]] of 0, therefore it contains no [[strange-quark]] or [[antistrange-quark]].
 '''[[Electrical Charge|Charge]]'''
 π<sup>+</sup> has a [[Positive Charge|positive charge]]. This can be achieved with one [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math> (an [[up-quark]]) and <math>+\frac{1}{3}</math> (an [[antidown-quark]]).
@@ Line 89: / Line 91: @@
 An up-antidown pair.
 | style="height:20px; width:300px; text-align:left;" |
 K<sup>-</sup> has a [[strangeness]] of -1, therefore it contains a [[strange-quark]].
 <math>-1 = -\frac{1}{3} + x</math>