Moduli-Induced Axion Problem

Abstract

We point out that the cosmological moduli problem is not necessarily resolved even if the modulus mass is heavier than O(10)TeV, contrary to the common wisdom. The point is that, in many scenarios where the lightest moduli fields are stabilized by supersymmetry breaking effects, those moduli fields tend to mainly decay into almost massless axions, whose abundance is tightly constrained by the recent Planck results. We study the moduli-induced axion problem in concrete examples, and discuss possible solutions. The problem and its solutions are widely applicable to decays of heavy scalar fields which dominate the energy density of the Universe, for instance, the reheating of the inflaton.

26 pages, 2 figures; minor corrections

References in corpus (16)

• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• Flux Compactification
• Moduli-Induced Gravitino Problem
• SUSY Breaking in Local String/F-Theory Models
• Moduli Decays and Gravitinos
• An M Theory Solution to the Strong CP Problem and Constraints on the Axiverse
• Dark Radiation in LARGE Volume Models
• Systematics of String Loop Corrections in Type IIB Calabi-Yau Flux Compactifications
• Moduli/Inflaton Mixing with Supersymmetry Breaking Field
• Towards Realistic String Vacua From Branes At Singularities
• Gauge Threshold Corrections for Local String Models
• Non-thermal Production of Dark Matter from Late-Decaying Scalar Field at Intermediate Scale
• Gauge Threshold Corrections for Local Orientifolds
• Axions and saxions from the primordial supersymmetric plasma and extra radiation signatures
• Sparticle Spectrum of Large Volume Compactification
• Dark radiation and small-scale structure problems with decaying particles

Cited by in corpus (52)

• Axion Cosmology
• Cosmological Moduli and the Post-Inflationary Universe: A Critical Review
• The 7 keV axion dark matter and the X-ray line signal
• String Inflation After Planck 2013
• A 3.55 keV Photon Line and its Morphology from a 3.55 keV ALP Line
• Probing the Early Universe with Axion Physics and Gravitational Waves
• Natural and Multi-Natural Inflation in Axion Landscape
• Multi-Natural Inflation in Supergravity
• Non-thermal Dark Matter in String Compactifications
• Phenomenological Aspects of No-Scale Inflation Models
• Soft X-ray Excess in the Coma Cluster from a Cosmic Axion Background
• An Ultralight Axion in Supersymmetry and Strings and Cosmology at Small Scales
• Axion dark matter from Higgs inflation with an intermediate $H_{\ast }$
• Relaxing the Cosmological Moduli Problem by Low-scale Inflation
• Axion monodromy inflation with multi-natural modulations
• Cosmic Birefringence Triggered by Dark Matter Domination
• Dark Radiation predictions from general Large Volume Scenarios
• Catch-Me-If-You-Can: The Overshoot Problem and the Weak/Inflation Hierarchy
• On axionic dark matter in Type IIA string theory
• Chaotic Inflation with Right-handed Sneutrinos after Planck
• Adiabatic suppression of the axion abundance and isocurvature due to coupling to hidden monopoles
• Dark Radiation in Anisotropic LARGE Volume Compactifications
• General Analysis of Dark Radiation in Sequestered String Models
• Cosmological constraints on axionic dark radiation from axion-photon conversion in the early Universe
• Relaxing Isocurvature Bounds on String Axion Dark Matter
• Constraining SUSY with Heavy Scalars -- using the CMB
• Trapping Effect for QCD Axion Dark Matter
• Reionization during the dark ages from a cosmic axion background
• Axions as Hot and Cold Dark Matter
• Cosmology in the presence of multiple light moduli
• Moduli or Not
• Loop corrections to Delta N_eff in large volume models
• Is the CMB telling us that dark matter is weaker than weakly interacting?
• Finite modular axion and radiative moduli stabilization
• A Cosmic ALP Background and the Cluster Soft X-ray Excess in A665, A2199 and A2255
• The Axiverse induced Dark Radiation Problem
• ALP Conversion and the Soft X-ray Excess in the Outskirts of the Coma Cluster
• Moduli-induced Baryogenesis
• Non-thermally trapped inflation by tachyonic dark photon production
• Anthropic Bound on Dark Radiation and its Implications for Reheating
• Shining ALP Dark Radiation
• Dark Radiation and the Hagedorn Phase
• Baryogenesis from a Modulus Dominated Universe
• A detailed exploration of the EDGES 21 cm absorption anomaly and axion-induced cooling
• Non-thermal Axion Dark Radiation and Constraints
• On the Galactic radio signal from stimulated decay of axion dark matter
• Cosmological Problems of the String Axion Alleviated by High Scale SUSY of $m_{3/2}$ $\simeq$ 10-100 TeV
• Conversations in the dark: cross-correlating birefringence and LSS to constrain axions
• On the dark radiation problem in the axiverse
• Axion-philic cosmological moduli
• Common Origin of Warm Dark Matter and Dark Radiation
• ALP production from light primordial black holes: The role of superradiance