Flaxino dark matter and stau decay

Abstract

If the spontaneous breaking of Peccei-Quinn symmetry comes from soft supersymmetry breaking, the fermionic partners of the symmetry-breaking fields have mass of order the gravitino mass, and are called flatinos. The lightest flatino, called here the flaxino, is a CDM candidate if it is the lightest supersymmetric particle. We here explore flaxino dark matter assuming that the lightest ordinary supersymmetric particle is the stau, with gravity-mediated supersymmetry breaking. The decay of the stau to the flaxino is fast enough not to spoil the standard predictions of Big Bang Nucleosynthesis, and its track and decay can be seen in future colliders.

9 pages, 4 figures, to appear in JHEP

References in corpus (56)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• Thermal Inflation and the Moduli Problem
• Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis
• Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
• Updated Nucleosynthesis Constraints on Unstable Relic Particles
• Axinos as Cold Dark Matter
• Gravitino Dark Matter in R-Parity Breaking Vacua
• Axinos as Dark Matter
• Cosmology with a TeV mass GUT Higgs
• Supergravity with a Gravitino LSP
• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Big-Bang Nucleosynthesis with Unstable Gravitino and Upper Bound on the Reheating Temperature
• Gravitino Dark Matter and Cosmological Constraints
• SuperWIMP Gravitino Dark Matter from Slepton and Sneutrino Decays
• Axino dark matter from thermal production
• Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios
• Radiative Decay of a Long-Lived Particle and Big-Bang Nucleosynthesis
• Lithium-6: A Probe of the Early Universe
• Big Bang Nucleosynthesis with Long Lived Charged Massive Particles
• Strong Interactive Massive Particles from a Strong Coupled Theory
• A study of late decaying charged particles at future colliders
• Radiative decay of a massive particle and the non-thermal process in primordial nucleosynthesis
• Effects of Unstable Particles on Light-Element Abundances: Lithium versus Deuterium and He3
• Stau-catalyzed ${}^6$Li Production in Big-Bang Nucleosynthesis
• Slepton Trapping at the Large Hadron and International Linear Colliders
• Cosmological Implications of Radiatively Generated Axion Scale
• Dark matter with invisible light from heavy double charged leptons of almost-commutative geometry?
• Primordial nucleosynthesis and hadronic decay of a massive particle with a relatively short lifetime
• Signatures of Axinos and Gravitinos at Colliders
• Bounds on long-lived charged massive particles from Big Bang nucleosynthesis
• Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
• Neutralino dark matter from heavy axino decay
• The cosmic 6Li and 7Li problems and BBN with long-lived charged massive particles
• Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
• Primordial Lithium Abundance in Catalyzed Big Bang Nucleosynthesis
• Axino dark matter from Q-balls in Affleck-Dine baryogenesis and the ${\Omega }_b-{\Omega }_{DM}$ coincidence problem
• Possible solution to the ${}^7$Li problem by the long lived stau
• Cosmological implications of supersymmetric axion models
• Supersymmetric Benchmarks with Non-Universal Scalar Masses or Gravitino Dark Matter
• Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
• Axino Dark Matter and the CMSSM
• Axion constraints in non-standard thermal histories
• Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
• Solving the Gravitino Problem by Axino
• A Simultaneous Solution to the ^6Li and ^7Li Big Bang Nucleosynthesis Problems from a Long-Lived Negatively-Charged Leptonic Particle
• The abundance of relativistic axions in a flaton model of Peccei-Quinn symmetry
• Axino warm dark matter and ${\Omega }_b-{\Omega }_{DM}$ coincidence
• Collider signals from slow decays in supersymmetric models with an intermediate-scale solution to the mu problem
• Cosmological constraints on a Peccei-Quinn flatino as the lightest supersymmetric particle
• Entropy production by Q-ball decay for diluting long-lived charged particles
• The Gravitino-Stau Scenario after Catalyzed BBN
• Composite Dark Matter with Invisible Light from Almost-Commutative Geometry
• Extremely Long-Lived Charged Massive Particles as A Probe for Reheating of the Universe
• Gravitino dark matter from increased thermal relic particles

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• Big-Bang Nucleosynthesis and Gravitino
• Dark matter production in the early Universe: beyond the thermal WIMP paradigm
• A new cubic theory of gravity in five dimensions: Black hole, Birkhoff's theorem and C-function
• Axino Cold Dark Matter Revisited
• Axinos as Dark Matter Particles
• Coupled Boltzmann calculation of mixed axion/neutralino cold dark matter production in the early universe
• The hybrid inflation waterfall and the primordial curvature perturbation
• Effective interactions of axion supermultiplet and thermal production of axino dark matter
• Review of axino dark matter
• Thermal inflation, baryogenesis and axions
• Solving Cosmological Problems of Supersymmetric Axion Models in an Inflationary Universe
• Thermal inflation and baryogenesis in heavy gravitino scenario
• Cosmology with Long-Lived Charged Massive Particles
• Axinos in Cosmology and at Colliders
• Axion model in gauge-mediated supersymmetry breaking and a solution to the mu/Bmu problem
• A simple model for particle physics and cosmology
• Allowed slepton intergenerational mixing in light of light element abundances