User:Sarilho1/testes

Texto a negrito

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Subclass defined by particle statistics (Q611755) or spin (Q133673):[edit]

quantum particle (Q28693603) obeys two types of particle statistics (Q611755), Bose-Einstein statistics (Q191076) and Fermi–Dirac statistics (Q274072), based on the value of their spin (Q133673) (see spin-statistics theorem (Q523876)):

integer spin (Q133673) implies Bose-Einstein statistics (Q191076) and defines boson (Q43101);
half-integer spin (Q133673) implies Fermi–Dirac statistics (Q274072) and defines fermion (Q44363).

Therefore:

If <Item> ?(instance of (P31)) <type of quantum particle (Q22675015)> then:
- If ?(spin quantum number (P1122)) "is" <integer> or ?(type of particle statistics (Q611755)) is <Bose-Einstein statistics (Q191076)> then
  - <Item> subclass of (P279) <fermion (Q44363)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
- If ?(spin quantum number (P1122)) "is" <half-integer> or ?(type of particle statistics (Q611755)) is <Fermi–Dirac statistics (Q274072)> then
  - <Item> subclass of (P279) <fermion (Q44363)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).

Legend: <.> denotes an item; ?(.) denotes a property.

Examples[edit]

<electron (Q2225)> subclass of (P279) <fermion (Q44363)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
<positron (Q3229)> subclass of (P279) <fermion (Q44363)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
<Higgs boson (Q402)> subclass of (P279) <boson (Q43101)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
<pion (Q4097)> subclass of (P279) <boson (Q43101)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
<proton (Q2294)> subclass of (P279) <fermion (Q44363)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
<deuteron (Q503527)> subclass of (P279) <boson (Q43101)> (criterion used (P1013) <particle statistics (Q611755) "or" spin (Q133673)>).
etc.

Problems/Questions/Grievances[edit]

What's the best criteria to define the subclass: particle statistics (Q611755) or spin (Q133673)?
"Violations" of Spin-Statistics theorem: Faddeev–Popov ghost (Q1391812).

Particles of Standard Model (Q18338) (work in progress)[edit]

This section is a work in progress and is here mostly to help me organize my ideas.

General comments[edit]

<Particle of Standard Model (Q18338)> is <elementary particle (Q43116)>.
antilepton (Q9617716), antineutrino (Q1066748), antiquark (Q2052084) exist, but I will ignore those groupings for now.
fermion (Q44363) and boson (Q43101) indicate the type of statistics the particle obeys.
- All lepton (Q82586) are fermion (Q44363); all gauge boson (Q105580) and Higgs boson (Q402) are boson (Q43101). They don't fulfil the later categories.
- <Elementar fermion> and elementary boson (Q28920814) are groupings that would be totally contained in Standard Model (Q18338), but are they fundamental?
scalar boson (Q2750336), <vectorial boson> and <tensorial boson> indicate the spin of the boson.
W or Z boson (Q211922) groups the bosons of weak interaction (Q11418).
W boson (Q1029485) groups both W bosons.
What about W₁, W₂, W₃ and B bosons of Electroweak theory?

	SM "Class"	Generation	By particle statistics (Q611755)	By spin (Q133673)	#Lepton (e,μ,τ)	Antiparticle
electron (Q2225)	lepton (Q82586)	I	fermion (Q44363)	1/2	(+1,0,0)	positron (Q3229)
muon (Q3151)	lepton (Q82586)	II	fermion (Q44363)	1/2	(0,+1,0)	antimuon (Q2174695)
tau (Q188392)	lepton (Q82586)	III	fermion (Q44363)	1/2	(0,0,+1)	antitau (Q2172777)
positron (Q3229)	lepton (Q82586)	I	fermion (Q44363)	1/2	(-1,0,0)	electron (Q2225)
antimuon (Q2174695)	lepton (Q82586)	II	fermion (Q44363)	1/2	(0,-1,0)	muon (Q3151)
antitau (Q2172777)	lepton (Q82586)	III	fermion (Q44363)	1/2	(0,0,-1)	tau (Q188392)
up quark (Q6732)	quark (Q6718)	I	fermion (Q44363)	1/2	(0,0,0)	up antiquark (Q18481607)
down quark (Q6745)	quark (Q6718)	I	fermion (Q44363)	1/2	(0,0,0)	down antiquark (Q18481576)
strange quark (Q6763)	quark (Q6718)	II	fermion (Q44363)	1/2	(0,0,0)	strange antiquark (Q11905755)