Hiperon: Verskil tussen weergawes
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Lyn 1:
’n '''Hiperon''' is ’n subatomiese [[Deeltjiefisika|deeltjie]]. Dit is enige [[barion]] wat bestaan uit een of meer [[vreemd-kwark]]e, maar geen [[Sjarme-kwark|sjarme-]] of [[onder-kwark]]e nie. Hulle is onstabiel en anders as [[nukleon]]e word hulle nie normaalweg in [[materie]] waargeneem nie. [[Atoomkern]]s wat hiperone bevat, word hiperkerns genoem.
Die naam van die hiperon hang af van die getal vreemd-kwarke (s-kwarke), dus sy [[Vreemdheid (deeltjiefisika)|vreemdheid]]:
* 1 s-kwark: Lambda (Λ)-barion
* 2 s-kwarke: Xi (Ξ)-barion
* 3 s-kwarke: Omega (Ω)-barion
Die volgende hiperone bestaan:
{| class = "prettytable" style = "text-align: center"
|- class = "background color:lightgrey"
!Hiperon
!Kwarke
![[Spin (fisika)|Spin]]
![[Isospin]]
![[Vreemdheid]]
![[Massa]] in [[Elektronvolt|MeV]]
!Lewensduur in s
![[Vervalkanaal]]
|-
| Λ
| uds<ref>u = [[op-kwark]], d = [[af-kwark]], s = [[vreemd-kwark]]</ref>
| 1/2<sup>+</sup>
| 0
| −1
| style = "text-align: left" | 1115,683(6)
| style = "text-align: right" | 2,631(20) × 10<sup>−10</sup>
| pπ<sup>−</sup>,nπ<sup>0</sup>
|-
| Σ<sup>+</sup>
| uus
| 1/2<sup>+</sup>
| 1
| −1
| style = "text-align: left" | 1189,37(7)
| style = "text-align: right" | 0,8018(26) × 10<sup>−10</sup>
| pπ<sup>0</sup>, nπ<sup>+</sup>
|-
| Σ<sup>0</sup>
| uds
| 1/2<sup>+</sup>
| 1
| −1
| style = "text-align: left" | 1192,642(24)
| style = "text-align: right" | 7,4(7) × 10<sup>−20</sup>
| Λγ
|-
| Σ<sup>−</sup>
| dds
| 1/2<sup>+</sup>
| 1
| −1
| style = "text-align: left" | 1197,449(30)
| style = "text-align: right" | 1,479(11) × 10<sup>−10</sup>
| nπ<sup>−</sup>
|-
| Ξ<sup>0</sup>
| uss
| 1/2<sup>+</sup>
| 1/2
| −2
| style = "text-align: left" | 1314,86(20)
| style = "text-align: right" | 2,90(9) × 10<sup>−10</sup>
| Λπ<sup>0</sup>
|-
| Ξ<sup>−</sup>
| dss
| 1/2<sup>+</sup>
| 1/2
| −2
| style = "text-align: left" | 1321,71(7)
| style = "text-align: right" | 1,639(15) × 10<sup>−10</sup>
| Λπ<sup>−</sup>
|-
| Ω<sup>−</sup>
| sss
| 3/2<sup>+</sup>
| 0
| −3
| style = "text-align: left" | 1672,45(29)
| style = "text-align: right" | 0,821(11) × 10<sup>−10</sup>
| ΛK<sup>−</sup>, Ξ<sup>0</sup>π<sup>−</sup>, Ξ<sup>−</sup>π<sup>0</sup>
|-
| Σ<sup>*+</sup>(1385) <ref name = PDGSigma(1385)>{{cite web | url = http://pdg.lbl.gov/2007/listings/b043.pdf | format = PDF; 135 kB | title = Particle Data Groups: 2006 Review of Particle Physics - Sigma(1385) | accessdate = 2008-04-20 }}</ref>
| uus
| 3/2<sup>+</sup>
| 1
| −1
| style = "text-align: left" | 1382,8(4)
|
| Λπ, Σπ
|-
| Σ<sup>*0</sup>(1385) <ref name = PDGSigma(1385)/>
| uds
| 3/2<sup>+</sup>
| 1
| −1
| style = "text-align: left" | 1383,7±1,0
|
| Λπ, Σπ
|-
| Σ<sup>*−</sup>(1385) <ref name = PDGSigma(1385)/>
| dds
| 3/2<sup>+</sup>
| 1
| −1
| style = "text-align: left" | 1387,2(5)
|
| Λπ, Σπ
|-
| Ξ<sup>*0</sup>(1530) <ref name = PDGXi(1530)>{{cite web |url=http://pdg.lbl.gov/2007/listings/b049.pdf | format = PDF; 89 kB | title = Particle Data Groups: 2006 Review of Particle Physics - Xi(1530) | accessdate = 2008-04-20 }}</ref>
| uss
| 3/2<sup>+</sup>
| 1/2
| −2
| style = "text-align: left" | 1531,80(32)
|
| Ξπ
|-
| Ξ<sup>*−</sup>(1530) <ref name = PDGXi(1530)/>
| dss
| 3/2<sup>+</sup>
| 1/2
| −2
| style = "text-align: left" | 1535,0(6)
|
| Ξπ
|}
==Verwysings==
{{Verwysings}}
==Sien ook==
Line 6 ⟶ 135:
{{saadjie}}
{{deeltjie}}
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