Big-Bang Nucleosynthesis and Gravitino

Abstract

We derive big-bang nucleosynthesis (BBN) constraints on both unstable and stable gravitino taking account of recent progresses in theoretical study of the BBN processes as well as observations of primordial light-element abundances. In the case of unstable gravitino, we set the upper limit on the reheating temperature assuming that the primordial gravitinos are mainly produced by the scattering processes of thermal particles. For stable gravitino, we consider Bino, stau and sneutrino as the next-to-the-lightest supersymmetric particle and obtain constraints on their properties. Compared with the previous works, we improved the following points: (i) we use the most recent observational data, (ii) for gravitino production, we include contribution of the longitudinal component, and (iii) for the case with unstable long-lived stau, we estimate the bound-state effect of stau accurately by solving the Boltzmann equation.

27 pages, 16 figures

References in corpus (36)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
• A probable stellar solution to the cosmological lithium discrepancy
• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• First stars VII. Lithium in extremely metal poor dwarfs
• The primordial abundance of 4He: a self-consistent empirical analysis of systematic effects in a large sample of low-metallicity HII regions
• Moduli-Induced Gravitino Problem
• Moduli Decays and Gravitinos
• Inflaton Decay in Supergravity
• Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios
• The Gravitino-Overproduction Problem in Inflationary Universe
• Big Bang Nucleosynthesis with Long Lived Charged Massive Particles
• Stau-catalyzed ${}^6$Li Production in Big-Bang Nucleosynthesis
• Moduli/Inflaton Mixing with Supersymmetry Breaking Field
• Bounds on long-lived charged massive particles from Big Bang nucleosynthesis
• Anomaly-Induced Inflaton Decay and Gravitino-Overproduction Problem
• On the Feasibility of a Stop NLSP in Gravitino Dark Matter Scenarios
• Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
• 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
• Primordial Helium Abundance: A Reanalysis of the Izotov-Thuan Spectroscopic Sample
• Possible solution to the ${}^7$Li problem by the long lived stau
• Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
• Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
• A Simultaneous Solution to the ^6Li and ^7Li Big Bang Nucleosynthesis Problems from a Long-Lived Negatively-Charged Leptonic Particle
• Solving the cosmic lithium problems with primordial late-decaying particles
• ${}^6$Li Production by the Radiative Decay of Long-Lived Particles
• Entropy production by Q-ball decay for diluting long-lived charged particles
• The Gravitino-Stau Scenario after Catalyzed BBN
• Constraints on Gravitino Dark Matter Scenarios with Long-Lived Charged Sleptons
• Bridging the primordial A=8 divide with Catalyzed Big Bang Nucleosynthesis
• Extremely Long-Lived Charged Massive Particles as A Probe for Reheating of the Universe
• Gravitino dark matter from increased thermal relic particles
• Flaxino dark matter and stau decay

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• Modified Higgs Boson Phenomenology from Gauge or Gaugino Mediation in the NMSSM
• Primordial Non-Gaussianity in Models with Dark Matter Isocurvature Fluctuations
• New Constraints on Radiative Decay of Long-Lived Particles in Big Bang Nucleosynthesis with New ${}^4$He Photodisintegration Data
• Successful Leptogenesis in SO(10) Unification with a Left-Right Symmetric Seesaw Mechanism
• Quintessential Kination and Thermal Production of Gravitinos and Axinos
• A new, direct link between the baryon asymmetry and neutrino masses
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• CP Violation in the SUSY Seesaw: Leptogenesis and Low Energy
• Non-thermal Gravitino Dark Matter in Gauge Mediation
• Upper Limits on the Peccei-Quinn Scale and on the Reheating Temperature in Axino Dark Matter Scenarios
• Gauge Mediation with Sequestered Supersymmetry Breaking
• The long-lived stau as a thermal relic
• The Relic Problem of String Gas Cosmology
• TASI 2008 lectures on Collider Signals II: E_T^missing signatures and the dark matter connection
• Reheating in Chaotic D-Term Inflation