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#redirect [[Exotic matter]]
{mergeto|Exotic_matter|discuss=Talk:Exotic_particle#Proposed Merger to "Exotic Matter"|date=January 2015}}
{{R from merge}}
An '''exotic particle''' is a kind of theoretical particle said to exist by some areas of modern [[physics]], and whose alleged properties are extremely unusual.
The best-known example is probably the [[tachyon]], a theoretical particle that always travels faster than light.<ref name="Feinberg">
{{cite encyclopedia
|last = Feinberg |first = Gerald
|year = 1997
|title = Tachyon
|encyclopedia = [[Encyclopedia Americana]]
|publisher = [[Grolier]]
|volume = 26 |page = 210
}}</ref><ref name="feinberg67">
{{cite journal
| first = Gerald | last = Feinberg
| year = 1967
| title = Possibility of Faster-Than-Light Particles
| journal = [[Physical Review]]
| volume = 159 | pages = 1089–1105
| doi = 10.1103/PhysRev.159.1089
|bibcode = 1967PhRv..159.1089F
| issue = 5 }}</ref>
Another example of this is [[supersymmetry]]. A theoretical set of super heavy versions of known particles (this is also one of the proposed candidates for dark matter) <ref name="supersymintro">
{{cite arxiv
|title=Introduction to Supersymmetry
|class=hep-th
|eprint=hep-th/9612114
|last1=Lykken | first1=Joseph D.
|year=1996
}}</ref>
Exotic particles are frequently featured in [[science fiction]], either those with real-world academic backing, or entirely fictional.
==References==
{{reflist}}
==Further reading==
*{{cite journal
|last=Ma |first=Ernest
|last2=Raidal |first2=Martti
|last3=Sarkar |first3=Uptal
|year=1999
|title=Probing the Exotic Particle Content Beyond the Standard Model
|journal=[[European Physical Journal C]]
|volume=8| issue= 2|pages=301
|doi=10.1007/s100529901068
|arxiv=hep-ph/9808484
|bibcode = 1999EPJC....8..301M }}
{{particles}}
{{DEFAULTSORT:Exotic Particle}}
[[Category:Particle physics]]
[[Category:Subatomic particles]]
{{particle-stub}}
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