Cosmological abundance of colored relics

Christian Gross; Andrea Mitridate; Michele Redi; Juri Smirnov; Alessandro Strumia

doi:10.1103/PhysRevD.99.016024

Cosmological abundance of colored relics

Christian Gross, Andrea Mitridate, Michele Redi, Juri Smirnov, Alessandro Strumia

Institut for Fysik, Kemi og Farmaci

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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Abstrakt

The relic cosmological abundance of stable or long-lived, charge neutral, colored particles gets reduced by up to 4 orders of magnitude by annihilations that occur after QCD confinement. We compute the abundance and the cosmological bounds on relic gluinos. The same postconfinement effect strongly enhances coannihilations with a lighter dark matter particle, provided that their mass difference is below a few giga-electron volts. Charged colored particles (such as stops) can instead form baryons, which can be (quasi)stable in some models.

Originalsprog	Engelsk
Artikelnummer	016024
Tidsskrift	Physical Review D
Vol/bind	99
Udgave nummer	1
ISSN	2470-0010
DOI	https://doi.org/10.1103/PhysRevD.99.016024
Status	Udgivet - 1. jan. 2019

Dokumenter og links

10.1103/PhysRevD.99.016024Licens: CC BY

Cosmological abundance of colored relicsForlagets udgivne version, 1,09 MBLicens: CC BY

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Citationsformater

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abstract = "The relic cosmological abundance of stable or long-lived, charge neutral, colored particles gets reduced by up to 4 orders of magnitude by annihilations that occur after QCD confinement. We compute the abundance and the cosmological bounds on relic gluinos. The same postconfinement effect strongly enhances coannihilations with a lighter dark matter particle, provided that their mass difference is below a few giga-electron volts. Charged colored particles (such as stops) can instead form baryons, which can be (quasi)stable in some models.",

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AU - Gross, Christian

AU - Mitridate, Andrea

AU - Redi, Michele

AU - Smirnov, Juri

AU - Strumia, Alessandro

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N2 - The relic cosmological abundance of stable or long-lived, charge neutral, colored particles gets reduced by up to 4 orders of magnitude by annihilations that occur after QCD confinement. We compute the abundance and the cosmological bounds on relic gluinos. The same postconfinement effect strongly enhances coannihilations with a lighter dark matter particle, provided that their mass difference is below a few giga-electron volts. Charged colored particles (such as stops) can instead form baryons, which can be (quasi)stable in some models.

AB - The relic cosmological abundance of stable or long-lived, charge neutral, colored particles gets reduced by up to 4 orders of magnitude by annihilations that occur after QCD confinement. We compute the abundance and the cosmological bounds on relic gluinos. The same postconfinement effect strongly enhances coannihilations with a lighter dark matter particle, provided that their mass difference is below a few giga-electron volts. Charged colored particles (such as stops) can instead form baryons, which can be (quasi)stable in some models.

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DO - 10.1103/PhysRevD.99.016024

M3 - Journal article

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JO - Physical Review D

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