Dark Radiation in LARGE Volume Models

Abstract

We consider reheating driven by volume modulus decays in the LARGE Volume Scenario. Such reheating always generates non-zero dark radiation through the decays to the axion partner, while the only competitive visible sector decays are Higgs pairs via the Giudice-Masiero term. In the framework of sequestered models where the cosmological moduli problem is absent, the simplest model with a shift-symmetric Higgs sector generates 1.56 < N_{eff} - N_{eff,SM} < 1.74. For more general cases, the known experimental bounds on N_{eff} strongly constrain the parameters and matter content of the models.

6 pages; v2. refs updated

References in corpus (37)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• String Axiverse
• Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications
• Wino Cold Dark Matter from Anomaly-Mediated SUSY Breaking
• Model Independent Properties and Cosmological Implications of the Dilaton and Moduli Sectors of 4-d Strings
• Cosmological Implications of Dynamical Supersymmetry Breaking
• The type IIB string axiverse and its low-energy phenomenology
• A Measurement of the Damping Tail of the Cosmic Microwave Background Power Spectrum with the South Pole Telescope
• Large-Volume Flux Compactifications: Moduli Spectrum and D3/D7 Soft Supersymmetry Breaking
• The Atacama Cosmology Telescope: Cosmological Parameters from the 2008 Power Spectra
• Naturally Light Hidden Photons in LARGE Volume String Compactifications
• GUTs in Type IIB Orientifold Compactifications
• Moduli-Induced Gravitino Problem
• Non-thermal Dark Matter and the Moduli Problem in String Frameworks
• Gravitino Production from Heavy Moduli Decay and Cosmological Moduli Problem Revived
• SUSY Breaking in Local String/F-Theory Models
• An M Theory Solution to the Strong CP Problem and Constraints on the Axiverse
• A robust upper limit on N_eff from BBN, circa 2011
• A New Approach to Systematic Uncertainties and Self-Consistency in Helium Abundance Determinations
• D-Branes at del Pezzo Singularities: Global Embedding and Moduli Stabilisation
• Signatures of a hidden cosmic microwave background
• Soft SUSY Breaking Terms for Chiral Matter in IIB String Compactifications
• Dark Radiation and Dark Matter in Large Volume Compactifications
• Testing String Vacua in the Lab: From a Hidden CMB to Dark Forces in Flux Compactifications
• Moduli Stabilisation for Chiral Global Models
• Increasing the effective number of neutrinos with decaying particles
• Reheating for Closed String Inflation
• A Shift Symmetry in the Higgs Sector: Experimental Hints and Stringy Realizations
• Moduli Redefinitions and Moduli Stabilisation
• Inflation in string theory: a graceful exit to the real world
• LARGE Volume String Compactifications at Finite Temperature
• Light Higgsino from Axion Dark Radiation
• Near-infrared spectroscopy of five Blue Compact Dwarf galaxies: II Zw 40, Mrk 71, Mrk 930, Mrk 996 and SBS 0335-052E
• Dark radiation and small-scale structure problems with decaying particles
• Higgs, Moduli Problem, Baryogenesis and Large Volume Compactifications
• On Anomaly Mediated SUSY Breaking
• Anomalous U(1) Mediation in Large Volume Compactification

Cited by in corpus (133)

• Axion Cosmology
• New experimental approaches in the search for axion-like particles
• The type IIB string axiverse and its low-energy phenomenology
• Dark matter production in the early Universe: beyond the thermal WIMP paradigm
• The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
• Physics potential of the International Axion Observatory (IAXO)
• Precision Early Universe Thermodynamics made simple: $N_{\mathrm{eff}}$ and Neutrino Decoupling in the Standard Model and beyond
• Cosmological Moduli and the Post-Inflationary Universe: A Critical Review
• De Sitter vs Quintessence in String Theory
• Towards Universal Axion Inflation and Reheating in String Theory
• The Quest for an Intermediate-Scale Accidental Axion and Further ALPs
• New Light Species and the CMB
• Primordial Black Holes from String Inflation
• String Inflation After Planck 2013
• A 3.55 keV Photon Line and its Morphology from a 3.55 keV ALP Line
• A Flux-Scaling Scenario for High-Scale Moduli Stabilization in String Theory
• Oscillons from String Moduli
• Searching for a 0.1-1 keV Cosmic Axion Background
• The strongest bounds on active-sterile neutrino mixing after Planck data
• Direct and indirect detection of higgsino-like WIMPs: concluding the story of electroweak naturalness
• Probing the Early Universe with Axion Physics and Gravitational Waves
• Multi-Natural Inflation in Supergravity and BICEP2
• Moduli-Induced Axion Problem
• Solving the Tension between High-Scale Inflation and Axion Isocurvature Perturbations
• Dark radiation from particle decay: cosmological constraints and opportunities
• Correlation between Dark Matter and Dark Radiation in String Compactifications
• Axion Miniclusters in Modified Cosmological Histories
• Non-thermal Dark Matter in String Compactifications
• Towards Axionic Starobinsky-like Inflation in String Theory
• Phenomenological Aspects of No-Scale Inflation Models
• The Higgs mass from a String-Theoretic Perspective
• Soft X-ray Excess in the Coma Cluster from a Cosmic Axion Background
• Global Embedding of Fibre Inflation Models
• The Cosmophenomenology of Axionic Dark Radiation
• Moduli Vacuum Misalignment and Precise Predictions in String Inflation
• Dark Matter Production Mechanisms with a Non-Thermal Cosmological History - A Classification
• N-flation with Hierarchically Light Axions in String Compactifications
• An Ultralight Axion in Supersymmetry and Strings and Cosmology at Small Scales
• Detuning primordial black hole dark matter with early matter domination and axion monodromy
• The Standard Model Quiver in de Sitter String Compactifications
• Axion dark matter from Higgs inflation with an intermediate $H_{\ast }$
• Chiral Global Embedding of Fibre Inflation Models
• Relaxing the Cosmological Moduli Problem by Low-scale Inflation
• Out of the Swampland with Multifield Quintessence?
• Cosmic Birefringence Triggered by Dark Matter Domination
• Axion monodromy inflation with multi-natural modulations
• Dark Radiation Constraints on Mixed Axion/Neutralino Dark Matter
• Moduli Stars
• Higgscitement: Cosmological Dynamics of Fine Tuning
• On axionic dark matter in Type IIA string theory
• Inflating with Large Effective Fields
• Catch-Me-If-You-Can: The Overshoot Problem and the Weak/Inflation Hierarchy
• Reheating and Dark Radiation after Fibre Inflation
• Adiabatic suppression of the axion abundance and isocurvature due to coupling to hidden monopoles
• The Fate of Dense Scalar Stars
• Boosted Neutrinos and Relativistic Dark Particles as Messengers from Reheating
• Systematics of type IIB moduli stabilisation with odd axions
• Axions in String Theory $-$ Slaying the Hydra of Dark Radiation
• Inflationary Constraints on Late Time Modulus Dominated Cosmology
• Cosmic Axion Force
• Geometrical Destabilisation of Ultra-Light Axions in String Inflation
• Black Hole Evaporation Beyond the Standard Model of Particle Physics
• Dark Radiation in Anisotropic LARGE Volume Compactifications
• Visible sector inflation and the right thermal history in light of Planck data
• Fuzzy Dark Matter and the Dark Dimension
• General Analysis of Dark Radiation in Sequestered String Models
• Constraints on Kähler moduli inflation from reheating
• Cosmological constraints on axionic dark radiation from axion-photon conversion in the early Universe
• Relaxing Isocurvature Bounds on String Axion Dark Matter
• Moduli Stabilisation and the Statistics of Axion Physics in the Landscape
• Dark Radiation and Decaying Matter
• Constraining SUSY with Heavy Scalars -- using the CMB
• Dark radiation and dark matter in supersymmetric axion models with high reheating temperature
• A Supersymmetric Model for Dark Matter and Baryogenesis Motivated by the Recent CDMS Result
• 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
• A Parallel World in the Dark
• Affleck-Dine Baryogenesis in Type IIB String Models
• Exploring the Role of Axions and Other WISPs in the Dark Universe
• Inflationary Predictions and Moduli Masses
• New observational limits on dark radiation in brane-world cosmology
• Superheavy Dark Matter from String Theory
• The Spectrum of Dark Radiation as a Probe of Reheating
• Gravitational Waves from Axion Monodromy
• High Energy Sphalerons for Baryogenesis at Low Temperatures
• Confronting Kähler moduli inflation with CMB data
• Is the CMB telling us that dark matter is weaker than weakly interacting?
• Spectator field models in light of spectral index after Planck
• The Dark Universe after Reheating in String Inflation
• Axionic Dark Radiation and the Milky Way's Magnetic Field
• Limits on Brane-World and Particle Dark Radiation from Big Bang Nucleosynthesis and the CMB
• Finite modular axion and radiative moduli stabilization
• Fibre inflation and precision CMB data
• A Cosmic ALP Background and the Cluster Soft X-ray Excess in A665, A2199 and A2255
• Non-thermal Hot Dark Matter from Inflaton/Moduli Decay: The Momentum Distribution and Relaxing the Cosmological Mass Bound
• Variable Inflaton Equation of State and Reheating
• Moduli-induced Baryogenesis
• The 3.5 keV Line from Stringy Axions
• Moduli induced cogenesis of baryon asymmetry and dark matter
• Cosmological moduli problem in large volume scenario and thermal inflation
• ALP Conversion and the Soft X-ray Excess in the Outskirts of the Coma Cluster
• Non-thermally trapped inflation by tachyonic dark photon production
• Constraints on ultralight axions, vector gauge bosons, and unparticles from geodetic and frame-dragging measurements
• Higher Derivative Corrections to String Inflation
• SUSY's Ladder: Reframing Sequestering at Large Volume
• Non-perturbative over-production of axion-like-particles (ALPs) via derivative interaction
• Anthropic Bound on Dark Radiation and its Implications for Reheating
• Solar Mass Primordial Black Holes in Moduli Dominated Universe
• Shining ALP Dark Radiation
• Inflating in perturbative LVS: Global Embedding and Robustness
• Dark matter and dark radiation from the early universe with a modulus coupled to the PQMSSM
• The Darkness of Spin-0 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
• Aligned Natural Inflation in the Large Volume Scenario
• On the Galactic radio signal from stimulated decay of axion dark matter
• Revisiting oscillon formation in KKLT scenario
• Cosmological Problems of the String Axion Alleviated by High Scale SUSY of $m_{3/2}$ $\simeq$ 10-100 TeV
• Cosmic superstrings in large volume compactifications: PTAs, LISA and time-varying tension
• Non-thermal CMSSM with a 125 GeV Higgs
• On the dark radiation problem in the axiverse
• Conversations in the dark: cross-correlating birefringence and LSS to constrain axions
• Axion-philic cosmological moduli
• Dark Matter density and the Higgs mass in LVS String Phenomenology
• Common Origin of Warm Dark Matter and Dark Radiation
• Anomalous EDGES 21-cm Signal and Moduli Dominated Era
• ALP production from light primordial black holes: The role of superradiance
• Forecasting Constraints on Non-Thermal Light Massive Relics from Future CMB Experiments (CMB-S4/Simons Observatory)
• String loop origin for dark radiation and superheavy dark matter in type IIB compactifications