Gravitino Dark Matter and Cosmological Constraints

Abstract

The gravitino is a promising candidate for cold dark matter. We study cosmological constraints on scenarios in which the gravitino is the lightest supersymmetric particle and a charged slepton the next-to-lightest supersymmetric particle (NLSP). We obtain new results for the hadronic nucleosynthesis bounds by computing the 4-body decay of the NLSP slepton into the gravitino, the associated lepton, and a quark-antiquark pair. The bounds from the observed dark matter density are refined by taking into account gravitinos from both late NLSP decays and thermal scattering in the early Universe. We examine the present free-streaming velocity of gravitino dark matter and the limits from observations and simulations of cosmic structures. Assuming that the NLSP sleptons freeze out with a thermal abundance before their decay, we derive new bounds on the slepton and gravitino masses. The implications of the constraints for cosmology and collider phenomenology are discussed and the potential insights from future experiments are outlined. We propose a set of benchmark scenarios with gravitino dark matter and long-lived charged NLSP sleptons and describe prospects for the Large Hadron Collider and the International Linear Collider.

51 pages, 20 figures, revised version matches published version (results unchanged, JHEP style used, figures replaced with new high-quality figures, typos corrected, references added)

Cited by in corpus (148)

• Big-Bang Nucleosynthesis and Gravitino
• Stable Massive Particles at Colliders
• Thermal Gravitino Production and Collider Tests of Leptogenesis
• Thermal production of gravitinos
• Gravitino Dark Matter in R-Parity Breaking Vacua
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Dark Matter Candidates: A Ten-Point Test
• Probing reheating temperature of the universe with gravitational wave background
• New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
• Reheating and Post-inflationary Production of Dark Matter
• Inflaton Decay in Supergravity
• Inflaton Oscillations and Post-Inflationary Reheating
• Mass Bounds on a Very Light Neutralino
• Dark Matter Spectra from the Electroweak to the Planck Scale
• Dark Matter Candidates - Axions, Neutralinos, Gravitinos, and Axinos
• Dark Matter Production in Late Time Reheating
• Calculations of Inflaton Decays and Reheating: with Applications to No-Scale Inflation Models
• How warm are non-thermal relics? Lyman-$\alpha$ bounds on out-of-equilibrium dark matter
• Nucleosynthesis Constraints on a Massive Gravitino in Neutralino Dark Matter Scenarios
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: Basic Concepts and Subtle Features
• On the Structure of Dark Matter Halos at the Damping Scale of the Power Spectrum with and without Relict Velocities
• Cosmological Phase Transitions and their Properties in the NMSSM
• Earth-Scattering of super-heavy Dark Matter: updated constraints from detectors old and new
• Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
• On the Feasibility of a Stop NLSP in Gravitino Dark Matter Scenarios
• The Case for an EeV Gravitino
• Post-Inflationary Gravitino Production Revisited
• Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
• Supersymmetry Without Prejudice at the LHC
• Primordial Lithium Abundance in Catalyzed Big Bang Nucleosynthesis
• Sterile neutrino dark matter in $B-L$ extension of the standard model and galactic 511 keV line
• Galaxy Formation in WDM Cosmology
• Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
• Prospects to study a long-lived charged next lightest supersymmetric particle at the LHC
• A Minimal Model of Gravitino Dark Matter
• Gravitino dark matter from Q-ball decays
• The number density of a charged relic
• Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
• A No-Scale Framework for Sub-Planckian Physics
• CMB and reheating constraints to α-attractor inflationary models
• Constraints on Supersymmetric Models from Catalytic Primordial Nucleosynthesis of Beryllium
• Gravitino Dark Matter and the Cosmic Lithium Abundances
• Solving the cosmic lithium problems with primordial late-decaying particles
• Metastable GeV-scale particles as a solution to the cosmological lithium problem
• Phenomenological Aspects of No-Scale Inflation Models
• Fundamental physics with the Hubble Frontier Fields: constraining Dark Matter models with the abundance of extremely faint and distant galaxies
• Towards constraints on the SUSY seesaw from flavour-dependent leptogenesis
• The sizes of mini-voids in the local universe: an argument in favor of a warm dark matter model?
• Extragalactic gamma-ray background radiation from dark matter annihilation
• Mass Spectrum in R-Parity Violating mSUGRA and Benchmark Points
• Gravitino thermal production revisited
• Building Models of Inflation in No-Scale Supergravity
• The Moduli and Gravitino (non)-Problems in Models with Strongly Stabilized Moduli
• Radiative gravitino decays from R-parity violation
• Light Gravitinos at Colliders and Implications for Cosmology
• How robust are inflation model and dark matter constraints from cosmological data?
• Nuclear Reaction Uncertainties, Massive Gravitino Decays and the Cosmological Lithium Problem
• Dark matter from late decays and the small-scale structure problems
• Collider signatures of gravitino dark matter with a sneutrino NLSP
• Constraining warm dark matter with cosmic shear power spectra
• Measuring lifetimes of long-lived charged massive particles stopped in LHC detectors
• Thermal relic abundances of long-lived staus
• Dark Matter from Gaugino Mediation
• The Cosmic Evolution of Faint Satellite Galaxies as a Test of Galaxy Formation and the Nature of Dark Matter
• Non-Abelian Discrete Dark Matter
• Constraints on heavy decaying dark matter from 570 days of LHAASO observations
• Gravitino Dark Matter from Inflaton Decay
• Primordial Black Holes as Silver Bullets for New Physics at the Weak Scale
• A Re-analysis of Gravitino Dark Matter in the Constrained MSSM
• Spontaneous R-Parity Breaking in SUSY Models
• A note on the primordial abundance of stau NLSPs
• Dark matter of any spin -- an effective field theory and applications
• Neutralino and gravitino dark matter with low reheating temperature
• The case for decaying spin-3/2 dark matter
• Starobinsky-Like Inflation and Neutrino Masses in a No-Scale SO(10) Model
• Superstring-Inspired Particle Cosmology: Inflation, Neutrino Masses, Leptogenesis, Dark Matter & the SUSY Scale
• Probing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis
• Entropy production by Q-ball decay for diluting long-lived charged particles
• Slow and Safe Gravitinos
• Cosmological scenario of stop NLSP with gravitino LSP and the cosmic lithium problem
• Long-lived higgsinos as probes of gravitino dark matter at the LHC
• Symmetry Breaking and Reheating after Inflation in No-Scale Flipped SU(5)
• Affleck-Dine Baryogenesis and Dark Matter Production after High-scale Inflation
• Gravitino LSP and leptogenesis after the first LHC results
• The Gravitino-Stau Scenario after Catalyzed BBN
• Experimental Status of Supersymmetry after the LHC Run-I
• New Weak-Scale Physics from SO(10) with High-Scale Supersymmetry
• Gravitational Waves as a Probe of the Gravitino Mass
• Probing new physics with long-lived charged particles produced by atmospheric and astrophysical neutrinos
• Effects of electrically charged dark matter on cosmic microwave background anisotropies
• Disformal Dark Matter
• Inflation and Leptogenesis in High-Scale Supersymmetry
• A brief note on how to unify dark matter, dark energy, and inflation
• A Model of Metastable EeV Dark Matter
• Dark radiation and dark matter in supersymmetric axion models with high reheating temperature
• Galaxy Formation in Sterile Neutrino Dark Matter Models
• Axinos in Cosmology and at Colliders
• Phenomenology and Cosmology of No-Scale Attractor Models of Inflation
• Localization of Gravitino Field on $f(R)$ Thick Branes
• Direct/indirect detection signatures of nonthermally produced dark matter
• Long-lived Staus from Cosmic Rays
• Cosmology of F-theory GUTs
• Energy-Momentum portal to dark matter and emergent gravity
• Stop on Top: SUSY Parameter Regions, Fine-Tuning Constraints
• Direct stau production at hadron colliders in cosmologically motivated scenarios
• Constraints on Gravitino Decay and the Scale of Inflation using CMB spectral distortions
• Leptogenesis With Many Neutrinos
• TeV scale seesaw from supersymmetric Higgs-lepton inflation and BICEP2
• The degenerate gravitino scenario
• Extremely Long-Lived Charged Massive Particles as A Probe for Reheating of the Universe
• Gravitino dark matter from increased thermal relic particles
• Spontaneous Non-thermal Leptogenesis in High-scale Inflation Models
• Upper Limits on the Peccei-Quinn Scale and on the Reheating Temperature in Axino Dark Matter Scenarios
• Higgs-lepton inflation in the supersymmetric minimal seesaw model
• Gravitational Waves, mu Term & Leptogenesis from B-L Higgs Inflation in Supergravity
• Flaxino dark matter and stau decay
• Late Energy Injection and Cosmological Constraints in Axino Dark Matter Scenarios
• Determining Spins of Metastable Sleptons at the Large Hadron Collider
• CBBN in the CMSSM
• A survey for low stau yields in the MSSM
• Quasi-degenerate neutrinos and leptogenesis from L_mu-L_tau
• Axino dark matter with low reheating temperature
• SO(10) unified models and soft leptogenesis
• Non-Oscillatory No-Scale Inflation
• Improving naturalness in Gauge Mediation with non-unified messenger sectors
• Gravitino dark matter and the lithium primordial abundance within a pre-BBN modified expansion
• Gravitino dark matter in brane-world cosmology
• Allowed slepton intergenerational mixing in light of light element abundances
• Dark matter in supersymmetric models with axino LSP in Randall-Sundrum II brane model
• Soft RPV Through the Baryon Portal
• Gravitino Thermal Production, Dark Matter, and Reheating of the Universe
• Localization of Gravitino Field on Thin Branes
• The gravitino coupling to broken gauge theories applied to the MSSM
• Revisiting No-Scale Supergravity Inspired Scenarios: Updated Theoretical and Phenomenological Constraints
• Astrophage of neutron stars from supersymmetric dark matter Q-balls
• Gravitino dark matter in hybrid gauge-gravity models
• An Enhanced Cosmological Li6 Abundance as a Potential Signature of Residual Dark Matter Annihilations
• Particle dark matter density and entropy production in the early universe
• Gravitino Dark Matter in Gravity Mediation
• A gauge mediation scenario with hidden sector renormalization in MSSM
• Stop Decay with LSP Gravitino in the final state: ${\tilde{t}}_1\to \tilde{G}Wb$
• $\Delta N_{\text{eff}}$ and entropy production from early-decaying gravitinos
• Axino dark matter and baryon number asymmetry production by the Q-ball decay in gauge mediation
• Reinterpreting $pp\to W^{+}{W}^{-}$ searches for charginos
• Colliders and Cosmology
• Geometrical deformation of brane matter field within $f(R,Q,P)$ gravity
• Flavored Gauge-Mediated Supersymmetry Breaking Models with Discrete Non-Abelian Symmetries
• Parametric Coincidence in the Baryon to Dark Matter Ratio from Affleck-Dine Baryogenesis and UV Freeze-in Dark Matter