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The extent of the stop coannihilation strip.
- Source :
-
European Physical Journal C -- Particles & Fields . Jul2014, Vol. 74 Issue 7, p1-16. 16p. - Publication Year :
- 2014
-
Abstract
- Many supersymmetric models such as the constrained minimal supersymmetric extension of the Standard Model (CMSSM) feature a strip in parameter space where the lightest neutralino $$\chi $$ is identified as the lightest supersymmetric particle, the lighter stop squark $${\tilde{t}_1}$$ is the next-to-lightest supersymmetric particle (NLSP), and the relic $$\chi $$ cold dark matter density is brought into the range allowed by astrophysics and cosmology by coannihilation with the lighter stop squark $${\tilde{t}_1}$$ NLSP. We calculate the stop coannihilation strip in the CMSSM, incorporating Sommerfeld enhancement effects, and we explore the relevant phenomenological constraints and phenomenological signatures. In particular, we show that the $${\tilde{t}_1}$$ may weigh several TeV, and its lifetime may be in the nanosecond range, features that are more general than the specific CMSSM scenarios that we study in this paper. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 74
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 97680576
- Full Text :
- https://doi.org/10.1140/epjc/s10052-014-2947-7