Eluding the BBN constraints on the stable gravitino
arXiv:hep-ph/0605164 · doi:10.1016/j.physletb.2006.07.070
Abstract
We investigate how late-time entropy production weakens the Big-Bang Nucleosynthesis (BBN) constraints on the gravitino as lightest superparticle with a charged slepton as next-to-lightest superparticle. We find that with a moderate amount of entropy production, the BBN constraints can be eluded for most of the parameter space relevant for the discovery of the gravitino. This is encouraging for experimental tests of supergravity at LHC and ILC.
arXiv comment6 pages, 1 figure
References in corpus (10)
- Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
- Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
- Supergravity with a Gravitino LSP
- SuperWIMP Gravitino Dark Matter from Slepton and Sneutrino Decays
- Supergravity at Colliders
- A study of late decaying charged particles at future colliders
- Slepton Trapping at the Large Hadron and International Linear Colliders
- Cosmological Gravitino Problem in Gauge-Mediated Supersymmetry Breaking Models
- Upper Bound On Gluino Mass From Thermal Leptogenesis
- Gravitino and Goldstino at Colliders
Cited by in corpus (28)
- Leptogenesis
- Dark matter production in the early Universe: beyond the thermal WIMP paradigm
- Gravitino Dark Matter in R-Parity Breaking Vacua
- Dark Matter Candidates - Axions, Neutralinos, Gravitinos, and Axinos
- Stau-catalyzed Li Production in Big-Bang Nucleosynthesis
- Primordial Lithium Abundance in Catalyzed Big Bang Nucleosynthesis
- Hidden gauginos of an unbroken U(1): Cosmological constraints and phenomenological prospects
- Constraints on Supersymmetric Models from Catalytic Primordial Nucleosynthesis of Beryllium
- Gauge mediation in supergravity and gravitino dark matter
- Leptogenesis, Gravitino Dark Matter and Entropy Production
- Gravitino Dark Matter from Inflaton Decay
- A note on the primordial abundance of stau NLSPs
- Probing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis
- Reheating and leptogenesis in a SUGRA inspired brane inflation
- The Gravitino-Stau Scenario after Catalyzed BBN
- Induced Gravitational Waves probing Primordial Black Hole Dark Matter with Memory Burden
- Dark radiation and dark matter in supersymmetric axion models with high reheating temperature
- Probing High Reheating Temperature Scenarios at the LHC with Long-Lived Staus
- Unstable Gravitino Dark Matter - Prospects for Indirect and Direct Detection
- CBBN in the CMSSM
- A survey for low stau yields in the MSSM
- The B-L Phase Transition: Implications for Cosmology and Neutrinos
- Dynamical Matter-Parity Breaking and Gravitino Dark Matter
- The long-lived stau as a thermal relic
- Non-collider searches for stable massive particles
- Stau-catalyzed Nuclear Fusion
- Stau-catalyzed d-t Nuclear Fusion
- Quasiparticles in Leptogenesis - A hard-thermal-loop study