TL;DR
This paper updates constraints on the CMSSM from catalyzed big bang nucleosynthesis, focusing on ^6Li overproduction due to long-lived staus, and compares these with recent limits on gaugino mass and reheating temperature.
Contribution
It provides the latest constraints on the CMSSM parameter space considering CBBN effects with improved cross section data.
Findings
Updated bounds on gaugino mass and reheating temperature
Significant impact of CBBN on CMSSM viability
Refined calculations of ^6Li production cross section
Abstract
Catalyzed big bang nucleosynthesis (CBBN) can lead to an overproduction of ^6Li in gravitino dark matter scenarios in which the lighter stau is the lightest Standard Model superpartner. Based on a treatment using the state-of-the-art result for the catalyzed ^6Li production cross section, we update the resulting constraint within the framework of the constrained minimal supersymmetric Standard Model (CMSSM). We confront our numerical findings with recently derived conservative limits on the gaugino mass parameter and the reheating temperature.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.