Strongly interacting massive particle: Difference between revisions

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{{Short description|Hypothetical particle}}

Will Nuneville explains {{short description|Hypothetical particles that interact strongly with ordinary matter, but could form the inferred dark matter despite this}}

A '''Stronglystrongly interacting massive particlesparticle''' ('''SIMPsSIMP''') areis a hypothetical particlesparticle that [[strong interaction|interactinteracts strongly]] between themselves [looks like they scatter off each other - observation of colliding galaxies in theand [[AbellWeak 3827interaction|weakly]] cluster, where it seemed that dark matter lagged behind the ordinary matter] and weakly with ordinary matter, but could form the inferred [[dark matter]] despite this.<ref name="wand">

{{For|the brown dwarf or exoplanet|SIMP J013656.5+093347}}

'''Strongly interacting massive particles''' ('''SIMPs''') are hypothetical particles that [[strong interaction|interact strongly]] between themselves [looks like they scatter off each other - observation of colliding galaxies in the [[Abell 3827]] cluster, where it seemed that dark matter lagged behind the ordinary matter] and weakly with ordinary matter, but could form the inferred [[dark matter]] despite this.<ref name="wand">

{{cite book

|last1=Wandelt |first1=Benjamin D

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|bibcode=2001sddm.symp..263W

|isbn=978-3-540-41216-8

}}</ref><ref>

}}</ref> However, this finding has since been discounted based on further observations and modelling of the cluster.<ref>

{{cite journal

|last1=Massey |first1=Richard

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|journal=Monthly Notices of the Royal Astronomical Society

|volume=477

|issue=1

|pages=669–677

|arxiv=1708.04245

|mode=cs2

|doi=10.1093/mnras/sty630

|doi-access=free

}}</ref><ref>

|bibcode=2018MNRAS.477..669M

}}</ref><ref>{{cite web

|last1=Grossman |first1=Lisa

|first1=Lisa

|date=April 5, 2018

|title=Dark matter isn't interacting with itself after all

|url=https://www.sciencenews.org/article/dark-matter-isnt-interacting-itself-after-all

|work=ScienceNews

|accessdateaccess-date=2018-04-05

|archive-date=2018-04-06

|archive-url=https://web.archive.org/web/20180406013104/https://www.sciencenews.org/article/dark-matter-isnt-interacting-itself-after-all

|url-status=live

}}</ref>

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|bibcode=1998PhRvD..57.4606C

|doi=10.1103/PhysRevD.57.4606

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|volume=59 |issue=1 |page=015021

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|doi=10.1103/PhysRevD.59.015021

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|doi=10.1103/PhysRevLett.87.061301

|pmid=11497819

|s2cid=13510283

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}}</ref><ref name="chuz">

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|bibcode=2006ApJ...645..950C

|doi=10.1086/504505

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|mode=cs2

}}</ref>

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|title=Opening the window on strongly interacting dark matter

|journal=Physical Review D

|volume=41 |issue=12 |pages=35943594–3603

|bibcode=1990PhRvD..41.3594S

|doi=10.1103/PhysRevD.41.3594

|pmid=10012303

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}}</ref><ref name="cyb">

{{Cite journal

|last1=Cyburt |first1=Richard H

|last2=Fields |first2=Brian D

|last3=Pavlidou |first3=Vasiliki| authorlink3=Vasiliki Pavlidou

|last4=Wandelt |first4=Benjamin D

|year=2002

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|bibcode=2002PhRvD..65l3503C

|doi=10.1103/PhysRevD.65.123503

|s2cid=14926247

|mode=cs2

}}.</ref><ref name="zahar">

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|bibcode=2005PhRvD..72h3502Z

|doi=10.1103/PhysRevD.72.083502

|s2cid=39245145

|mode=cs2

}}</ref><ref name="wdn">

{{cite journal

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|chapter=Cracking Open the Window for Strongly Interacting Massive Particles as the Halo Dark Matter

|title=Proceedings of the International Cosmic Ray Conference

|journal=International Cosmic Ray Conference

|volume=4

|___location=Hamburg, Germany

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|doi=10.1086/338796

|mode=cs2

|doi-access=free

}}</ref>

SIMPsSIMP annihilations would produce significant heat. [[DAMA/NaI|DAMA]] set limits with NaI(Tl) crystals.<ref name="wdn"/>{{citation needed|date=January 2017}}

Measurements of [[Uranus]]'s heat excess exclude SIMPSSIMPs from 150 MeV to 10⁴ GeV.<ref name="mitr">

{{Cite journal

|last1=Mitra |first1=Saibal

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|bibcode=2004PhRvD..70j3517M

|doi=10.1103/PhysRevD.70.103517

|s2cid=53396770

|mode=cs2

}}</ref> Earth's heat flow significantly constrains any cross section.<ref>

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|bibcode=2007PhRvD..76d3523M

|doi=10.1103/PhysRevD.76.043523

|s2cid=119710504

|mode=cs2

}}</ref>

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*{{annotated link|Weakly interacting massive particles}}

*{{annotated link|Self-interacting dark matter}}

*{{annotated link|Massive compact halo object}}

==References==