Cosmology with Long-Lived Charged Massive Particles

Abstract

We investigate the evolution of the bound state of negatively charged massive particles (CHAMPs) with light elements and discuss its cosmological consequences and the constraint. By numerically solving the Boltzmann equation, we study the time evolutions of such bound states. Since most of negative CHAMPs are captured by He4, its bound state is positively charged and couples with the electromagnetic plasma. When charged particles constitute a dominant non-relativistic component, density fluctuations of matter cannot grow due to the acoustic damping. This results in the suppression of matter power spectrum from which a severe constraint can be obtained. By arguing constraints from other aspects of cosmology, we show that the constraint from large scale structure gives most stringent one in some representative cases.

13 pages, 3 figures, accepted for publication in PLB

References in corpus (35)

• The Observed properties of Dark Matter on small spatial scales
• Big-Bang Nucleosynthesis and Gravitino
• Hidden Charged Dark Matter
• Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
• Atomic Dark Matter
• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios
• Reopening the window on charged dark matter
• Big Bang Nucleosynthesis with Long Lived Charged Massive Particles
• Stau-catalyzed ${}^6$Li Production in Big-Bang Nucleosynthesis
• Nucleosynthesis Constraints on a Massive Gravitino in Neutralino Dark Matter Scenarios
• Bounds on long-lived charged massive particles from Big Bang nucleosynthesis
• 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
• Possible solution to the ${}^7$Li problem by the long lived stau
• Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
• A Simultaneous Solution to the ^6Li and ^7Li Big Bang Nucleosynthesis Problems from a Long-Lived Negatively-Charged Leptonic Particle
• Gravitino Dark Matter and the Cosmic Lithium Abundances
• Cosmology: small scale issues revisited
• Big-bang nucleosynthesis and the relic abundance of dark matter in a stau-neutralino coannihilation scenario
• Big-Bang Nucleosynthesis Reactions Catalyzed by a Long-Lived Negatively Charged Leptonic Particle
• 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
• Upper Limits on the Peccei-Quinn Scale and on the Reheating Temperature in Axino Dark Matter Scenarios
• Constraining SuperWIMPy and Warm Subhalos with Future Submillilensing
• Late Energy Injection and Cosmological Constraints in Axino Dark Matter Scenarios
• Flaxino dark matter and stau decay
• The long-lived stau as a thermal relic

Cited by in corpus (22)

• The Primordial Lithium Problem
• The evolution of CMB spectral distortions in the early Universe
• Neutrinos at IceCube from Heavy Decaying Dark Matter
• Teasing bits of information out of the CMB energy spectrum
• The New Look pMSSM with Neutralino and Gravitino LSPs
• Structure of Dark Matter Halos in Warm Dark Matter models and in models with Long-Lived Charged Massive Particles
• Shedding light on the small-scale crisis with CMB spectral distortions
• R-Parity Violation at the LHC
• Nambu-Goldstone Dark Matter in a Scale Invariant Bright Hidden Sector
• A search for charged massive long-lived particles
• Stau relic density at the Big-Bang nucleosynthesis era consistent with the abundance of the light element nuclei in the coannihilation scenario
• Effects of electrically charged dark matter on cosmic microwave background anisotropies
• Big-bang nucleosynthesis with a long-lived charged massive particle including ${}^4$He spallation processes
• Constraints on electron-scattering interpretation of XENON1T excess
• Decaying Dark Atom constituents and cosmic positron excess
• On the fraction of dark matter in charged massive particles (CHAMPs)
• The effects of the small-scale behaviour of dark matter power spectrum on CMB spectral distortion
• Formation of the seed black holes: a role of quark nuggets?
• Charged-Particle Decay at Finite Temperature
• Allowed slepton intergenerational mixing in light of light element abundances
• Constraints on long-lived electrically charged massive particles from anomalous strong lens systems
• Cosmological implications of electromagnetically interacting dark matter: milli-charged particles and atoms with singly and doubly charged dark matter