A new dark matter candidate in the minimal extension of the supersymmetric standard model

Ricardo Flores; Keith A. Olive; David Thomas

doi:10.1016/0370-2693(90)90682-V

A new dark matter candidate in the minimal extension of the supersymmetric standard model

Ricardo Flores, Keith A. Olive, David Thomas

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Abstract

We study the cosmology of the neutral supersymmetric fermion sector in the simplest extension of the minimal supersymmetric standard model. We find that in a substantial portion of the allowed parameter space of the model, a new light fermion emerges. For this state we calculate annihilation cross-sections and determine its cosmological abundance. We find that in much of the cosmologically allowed region of parameter space its relic density could be significant enough to solve the dark matter problem.

Original language	English (US)
Pages (from-to)	509-514
Number of pages	6
Journal	Physics Letters B
Volume	245
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(90)90682-V
State	Published - Aug 16 1990

Bibliographical note

Funding Information:
We would like to thank M. Srednicki for importantc ommunicationsT.h is work was supportedin part by DOE grant DE-83ER-AC02-40105a,n d by K.A.O.s PresidentiaYl oung InvestigatoAr ward.

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abstract = "We study the cosmology of the neutral supersymmetric fermion sector in the simplest extension of the minimal supersymmetric standard model. We find that in a substantial portion of the allowed parameter space of the model, a new light fermion emerges. For this state we calculate annihilation cross-sections and determine its cosmological abundance. We find that in much of the cosmologically allowed region of parameter space its relic density could be significant enough to solve the dark matter problem.",

author = "Ricardo Flores and Olive, {Keith A.} and David Thomas",

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AU - Olive, Keith A.

AU - Thomas, David

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N2 - We study the cosmology of the neutral supersymmetric fermion sector in the simplest extension of the minimal supersymmetric standard model. We find that in a substantial portion of the allowed parameter space of the model, a new light fermion emerges. For this state we calculate annihilation cross-sections and determine its cosmological abundance. We find that in much of the cosmologically allowed region of parameter space its relic density could be significant enough to solve the dark matter problem.

AB - We study the cosmology of the neutral supersymmetric fermion sector in the simplest extension of the minimal supersymmetric standard model. We find that in a substantial portion of the allowed parameter space of the model, a new light fermion emerges. For this state we calculate annihilation cross-sections and determine its cosmological abundance. We find that in much of the cosmologically allowed region of parameter space its relic density could be significant enough to solve the dark matter problem.

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ER -

A new dark matter candidate in the minimal extension of the supersymmetric standard model

Abstract

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