English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The dwarf galaxy Segue 1 is one of the most promising targets for theindirect detection of dark matter. Here we examine what constraints 9 months ofFermi-LAT gamma-ray observations of Segue 1 place upon the Constrained MinimalSupersymmetric Standard Model (CMSSM), with the lightest neutralino as the darkmatter particle. We use nested sampling to explore the CMSSM parameter space,simultaneously fitting other relevant constraints from accelerator bounds, therelic density, electroweak precision observables, the anomalous magnetic momentof the muon and B-physics. We include spectral and spatial fits to the Fermiobservations, a full treatment of the instrumental response and its relateduncertainty, and detailed background models. We also perform an extrapolationto 5 years of observations, assuming no signal is observed from Segue 1 in thattime. Results marginally disfavour models with low neutralino masses and highannihilation cross-sections. Virtually all of these models are however alreadydisfavoured by existing experimental or relic density constraints.

Direct Constraints on Minimal Supersymmetry from Fermi-LAT Observations of the Dwarf Galaxy Segue 1