Editing Hyperon (section)

==List==
{| class="wikitable sortable"
|+Hyperons
|-
! class=unsortable | Particle
! Symbol 
! Makeup 
! [[Rest mass]] <br>([[electron volt|MeV]]/''[[speed of light|c]]''<sup>2</sup>)
! [[Isospin]], <br>I
! [[Spin (physics)|Spin]], [[parity (physics)|parity]],<br>[[Spin (physics)|J]]<sup>[[parity (physics)|P]]</sup>
! [[charge (physics)|Q]] <br/>(''e'')
! [[strangeness|S]]
! [[charm (quantum number)|C]]
! [[bottomness|B']]
! [[Mean lifetime]] <br>([[second|s]])
! class=unsortable | Commonly <br/>decays to 
|-
| [[Lambda baryon|Lambda]]<ref>{{cite web |url=http://pdg.lbl.gov/2007/listings/s018.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Lambda |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175117/http://pdg.lbl.gov/2007/listings/s018.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Lambda0}}
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1 115.683(6)
| 0
| {{frac|1|2}}<sup>+</sup>
| 0
| −1
| 0
| 0
| {{val|2.60|e=-10}}<ref name=ParticlePhysicsOverview>{{cite web|url=http://filer.case.edu/sjr16/advanced/extras_particlephys.html |title=Physics Particle Overview – Baryons |access-date=2008-04-20 |url-status=dead |archive-url=https://web.archive.org/web/20080228011850/http://filer.case.edu/sjr16/advanced/extras_particlephys.html |archive-date=2008-02-28 }}</ref>
| {{nowrap|{{SubatomicParticle|link=yes|Proton+}} + {{SubatomicParticle|link=yes|Pion-}}}} or <br/> {{nowrap|{{SubatomicParticle|link=yes|Neutron0}} + {{SubatomicParticle|link=yes|Pion0}}}}
|-
| [[Lambda baryon|Lambda]] resonance<ref>{{cite web |url=http://pdg.lbl.gov/2007/listings/s018.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Lambda |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175117/http://pdg.lbl.gov/2007/listings/s018.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Lambda}}(1405)
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1 405.1(+1.3 -1.0)
| 0
| {{frac|1|2}}<sup>−</sup>
| 0
| −1
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|link=yes|Sigma}} + {{SubatomicParticle|link=yes|Pion}}}} 
|-
| [[Lambda baryon|Lambda]] resonance<ref>{{cite web |url=http://pdg.lbl.gov/2007/listings/s018.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Lambda |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175117/http://pdg.lbl.gov/2007/listings/s018.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Lambda}}(1520)
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1 519(1)
| 0
| {{frac|3|2}}<sup>−</sup>
| 0
| −1
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|link=yes|Nucleon}} + {{SubatomicParticle|link=yes|Kaon}}}} or {{nowrap|{{SubatomicParticle|link=yes|Sigma}} + {{SubatomicParticle|link=yes|pion}}}} or {{nowrap|{{SubatomicParticle|link=yes|Lambda}} + 2{{SubatomicParticle|link=yes|pion}}}} 
|-
| [[Sigma baryon|Sigma]]<ref name="PDGSigma+">{{cite web |url=http://pdg.lbl.gov/2007/listings/s019.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Sigma+ |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175104/http://pdg.lbl.gov/2007/listings/s019.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Sigma+}}
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;189.37(7)
| 1
| {{frac|1|2}}<sup>+</sup>
| +1
| −1
| 0
| 0
| {{val|8.018|0.026|e=-11}}
| {{nowrap|{{SubatomicParticle|link=yes|Proton+}} + {{SubatomicParticle|link=yes|Pion0}}}} or <br/>{{nowrap|{{SubatomicParticle|link=yes|Neutron0}} + {{SubatomicParticle|link=yes|Pion+}}}}
|-
| [[Sigma baryon|Sigma]]<ref name=PDGSigma0>{{cite web |url=http://pdg.lbl.gov/2007/listings/s021.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Sigma0 |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175105/http://pdg.lbl.gov/2007/listings/s021.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Sigma0}}
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;192.642(24)
| 1
| {{frac|1|2}}<sup>+</sup>
| 0
| −1
| 0
| 0
| {{val|7.4|0.7|e=-20}}
| {{nowrap|{{SubatomicParticle|link=yes|Lambda0}} + {{SubatomicParticle|link=yes|Photon}}}}
|-
| [[Sigma baryon|Sigma]]<ref name=PDGSigma->{{cite web |url=http://pdg.lbl.gov/2007/listings/s020.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Sigma- |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175103/http://pdg.lbl.gov/2007/listings/s020.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Sigma-}}
| {{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;197.449(30)
| 1
| {{frac|1|2}}<sup>+</sup>
| −1
| −1
| 0
| 0
| {{val|1.479|0.011|e=-10}}
| {{nowrap|{{SubatomicParticle|link=yes|Neutron0}} + {{SubatomicParticle|link=yes|Pion-}}}}
|-
| [[Sigma baryon|Sigma]] resonance<ref name=PDGSigma(1385)>{{cite web |url=http://pdg.lbl.gov/2007/listings/b043.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Sigma(1385) |access-date=2008-04-20 |archive-url=https://web.archive.org/web/20080910175104/http://pdg.lbl.gov/2007/listings/b043.pdf |archive-date=2008-09-10 |url-status=dead }}</ref>
| {{SubatomicParticle|link=yes|Sigma*+}}(1385)
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;382.8(4)
| 1
| {{frac|3|2}}<sup>+</sup>
| +1
| −1
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|Lambda}} + {{SubatomicParticle|Pion}}}} or <br> {{nowrap|{{SubatomicParticle|Sigma}} + {{SubatomicParticle|Pion}}}}
|-
| [[Sigma baryon|Sigma]] resonance<ref name=PDGSigma(1385)/>
| {{SubatomicParticle|link=yes|Sigma*0}}(1385)
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;383.7±1.0
| 1
| {{frac|3|2}}<sup>+</sup>
| 0
| −1
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|Lambda}} + {{SubatomicParticle|Pion}}}} or <br/> {{nowrap|{{SubatomicParticle|Sigma}} + {{SubatomicParticle|Pion}}}}
|-
| [[Sigma baryon|Sigma]] resonance<ref name=PDGSigma(1385)/>
| {{SubatomicParticle|link=yes|Sigma*-}}(1385)
| {{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;387.2(5)
| 1
| {{frac|3|2}}<sup>+</sup>
| −1
| −1
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|Lambda}} + {{SubatomicParticle|Pion}}}} or <br/> {{nowrap|{{SubatomicParticle|Sigma}} + {{SubatomicParticle|Pion}}}}
|- 
| [[Xi baryon|Xi]]<ref name=PDGXi0>{{cite web |url=http://pdg.lbl.gov/2007/listings/s023.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Xi0|access-date=2008-04-20 }}</ref>
| {{SubatomicParticle|link=yes|Xi0}}
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Strange quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;314.86(20)
| {{frac|1|2}}
| {{frac|1|2}}<sup>+</sup>
| 0
| −2
| 0
| 0
| {{val|2.90|0.09|e=-10}}
| {{nowrap|{{SubatomicParticle|link=yes|Lambda0}} + {{SubatomicParticle|link=yes|Pion0}}}}
|-
| [[Xi baryon|Xi]]<ref name=PDGXi->{{cite web |url=http://pdg.lbl.gov/2007/listings/s022.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Xi-|access-date=2008-04-20 }}</ref>
| {{SubatomicParticle|link=yes|Xi-}}
| {{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;321.71(7)
| {{frac|1|2}}
| {{frac|1|2}}<sup>+</sup>
| −1
| −2
| 0
| 0
| {{val|1.639|0.015|e=-10}}
| {{nowrap|{{SubatomicParticle|link=yes|Lambda0}} + {{SubatomicParticle|link=yes|Pion-}}}}
|-
| [[Xi baryon|Xi]] resonance<ref name=PDGXi(1530)>{{cite web |url=http://pdg.lbl.gov/2007/listings/b049.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Xi(1530)|access-date=2008-04-20 }}</ref>
| {{SubatomicParticle|link=yes|Xi*0}}(1530)
| {{SubatomicParticle|link=yes|Up quark}}{{SubatomicParticle|link=yes|Strange quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;531.80(32)
| {{frac|1|2}}
| {{frac|3|2}}<sup>+</sup>
| 0
| −2
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|link=yes|Xi}} + {{SubatomicParticle|link=yes|Pion}}}}
|-
| [[Xi baryon|Xi]] resonance<ref name=PDGXi(1530)/>
| {{SubatomicParticle|link=yes|Xi*-}}(1530)
| {{SubatomicParticle|link=yes|Down quark}}{{SubatomicParticle|link=yes|Strange quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;535.0(6)
| {{frac|1|2}}
| {{frac|3|2}}<sup>+</sup>
| −1
| −2
| 0
| 0
| 
| {{nowrap|{{SubatomicParticle|link=yes|Xi}} + {{SubatomicParticle|link=yes|Pion}}}}
|-
| [[Omega baryon|Omega]]<ref name=PDGOmega->{{cite web |url=http://pdg.lbl.gov/2007/listings/s024.pdf |title=Particle Data Groups: 2006 Review of Particle Physics – Omega-|access-date=2008-04-20 }}</ref>
| {{SubatomicParticle|link=yes|Omega-}}
| {{SubatomicParticle|link=yes|Strange quark}}{{SubatomicParticle|link=yes|Strange quark}}{{SubatomicParticle|link=yes|Strange quark}}
| 1&nbsp;672.45(29)
| 0 
| {{frac|3|2}}<sup>+</sup>
| −1
| −3
| 0
| 0
| {{val|8.21|0.11|e=-11}}
| {{nowrap|{{SubatomicParticle|link=yes|Lambda0}} + {{SubatomicParticle|link=yes|Kaon-}}}} or <br/> {{nowrap|{{SubatomicParticle|link=yes|Xi0}} + {{SubatomicParticle|link=yes|Pion-}}}} or <br/> {{nowrap|{{SubatomicParticle|link=yes|Xi-}} + {{SubatomicParticle|link=yes|Pion0}}}}
|}

Notes:
* Since [[strangeness]] is conserved by the [[strong interaction]]s, some ground-state hyperons cannot decay strongly. However, they do participate in strong interactions.
* {{SubatomicParticle|Lambda0}} may also decay on rare occurrences via these processes:
*: {{SubatomicParticle|Lambda0}} → {{SubatomicParticle|Proton+}} + {{SubatomicParticle|Electron}} + {{SubatomicParticle|Electron antineutrino}}
*: {{SubatomicParticle|Lambda0}} → {{SubatomicParticle|Proton+}} + {{SubatomicParticle|Muon}} + {{SubatomicParticle|Muon antineutrino}}
* {{SubatomicParticle|Xi0}} and {{SubatomicParticle|Xi-}} are also known as "cascade" hyperons, since they go through a two-step cascading decay into a [[nucleon]].
* The {{SubatomicParticle|Omega-}} has a [[baryon number]] of +1 and [[hypercharge]] of −2, giving it strangeness of −3. It takes multiple flavor-changing [[weak interaction|weak decays]] for it to decay into a proton or neutron. [[Murray Gell-Mann]]'s and [[Yuval Ne'eman]]'s [[Special unitary group|SU(3)]] model (sometimes called the [[Eightfold way (physics)|Eightfold Way]]) predicted this hyperon's existence, mass and that it will only undergo weak decay processes. Experimental evidence for its existence was discovered in 1964 at [[Brookhaven National Laboratory]]. Further examples of its formation and observation using [[particle accelerator]]s confirmed the SU(3) model.