Dark matter in the finely tuned minimal supersymmetric standard model
Journal Article
·
· Physical Review. D, Particles Fields
- Theory Group, Stanford Linear Accelerator Center, Menlo Park, CA 94025 (United States)
We explore dark matter in the finely-tuned minimal supersymmetric standard model (MSSM) recently proposed by Arkani-Hamed and Dimopoulos. Relative to the MSSM, there are fewer particles at freeze-out, so the calculation of the relic abundance simplifies. Similarly, the predictions for direct detection of the dark matter sharpen. There is a large region of mixed bino--higgsino dark matter where the lightest supersymmetric particle will be accessible at both the LHC and future direct detection experiments, allowing for a conclusive identification of the dark matter particle. Typical dark matter-nucleon cross sections are 10{sup -45}-10{sup -44} cm{sup 2}. This model also possesses a novel region where the dark matter annihilates via an s-channel Higgs boson resonance.
- OSTI ID:
- 20705377
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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