Dark matter in a constrained next-to-minimal supersymmetric standard model

被引：47

作者：

Hugonie, C. ^{[1
]}

Belanger, G. ^{[2
]}

Pukhov, A. ^{[3
]}

机构：

[1] Univ Montpellier 2, Lab Phys Theor & Astroparticules, Unite Mixte Rech, CNRS,UMR5207, F-34095 Montpellier, France

[2] Univ Savoie, Lab Annecy Le Vieux Phys Theor, Unite Mixte Rech, CNRS,UMR5108, F-74941 Annecy Le Vieux, France

[3] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119992, Russia

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2007年 / 11期

关键词：

dark matter; dark energy theory;

D O I：

10.1088/1475-7516/2007/11/009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore the parameter space of a constrained next-to-minimal supersymmetric standard model with grand unified theory scale boundary conditions, and find regions where the relic density of the lightest neutralino is compatible with the WMAP (Wilkinson Microwave Anisotropy Probe) measurement. We emphasize differences from the minimal supersymmetric standard model: cases where annihilation of the lightest supersymmetric particle (LSP) occurs via a Higgs resonance at low values of tan beta and cases where the LSP has a large singlino component. The particle spectrum as well as theoretical and collider constraints are calculated with NMSSMTools. All neutralino annihilation and coannihilation processes are then computed with micrOMEGAs, taking into account higher order corrections to the Higgs sector.

引用

页数：19

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