Hidden gauginos of an unbroken U(1): Cosmological constraints and phenomenological prospects

Abstract

We study supersymmetric scenarios where the dark matter is the gaugino of an unbroken hidden U(1) which interacts with the visible world only via a small kinetic mixing with the hypercharge. Strong constraints on the parameter space can be derived from avoiding overclosure of the Universe and from requiring successful Big Bang Nucleosynthesis and structure formation. We find that for typical values of the mixing parameter, scenarios with neutralino NLSP are excluded, while scenarios with slepton NLSP are allowed when the mixing parameter lies in the range chi~O(10^(-13) - 10^(-10)). We also show that if the gravitino is the LSP and the hidden U(1) gaugino the NLSP, the bounds on the reheating temperature from long lived charged MSSM relics can be considerably relaxed and we comment on the signatures of these scenarios at future colliders. Finally, we discuss the case of an anomalously small mixing, chi<<10^(-16), where the neutralino becomes a decaying dark matter candidate, and derive constraints from gamma ray experiments.

arXiv comment32 pages, 6 figures

References in corpus (64)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Particle Dark Matter: Evidence, Candidates and Constraints
• Supersymmetric Dark Matter
• The Physics of Heavy Z' Gauge Bosons
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Leptogenesis for Pedestrians
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• EGRET Observations of the Extragalactic Gamma Ray Emission
• Thermal Production of Gravitinos
• Updated Bounds on Milli-Charged Particles
• Squark and Gluino Production at Hadron Colliders
• Superweakly Interacting Massive Particles
• The Lyman-alpha Forest Power Spectrum from the Sloan Digital Sky Survey
• Bosonic super-WIMPs as keV-scale dark matter
• The Stueckelberg $Z^{\prime }$ Extension with Kinetic Mixing and Milli-Charged Dark Matter From the Hidden Sector
• Can sterile neutrinos be the dark matter?
• Thermal Gravitino Production and Collider Tests of Leptogenesis
• A new determination of the extragalactic diffuse gamma-ray background from EGRET data
• Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology
• Thermal production of gravitinos
• Gravitino Dark Matter in R-Parity Breaking Vacua
• Thermal Relics in Hidden Sectors
• Supergravity with a Gravitino LSP
• Gravitino Dark Matter without R-parity
• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Loop Corrections to Volume Moduli and Inflation in String Theory
• Big-Bang Nucleosynthesis with Unstable Gravitino and Upper Bound on the Reheating Temperature
• Can sterile neutrinos be ruled out as warm dark matter candidates?
• Heterotic GUT and Standard Model Vacua from simply connected Calabi-Yau Manifolds
• Helioscope Bounds on Hidden Sector Photons
• Brane-Antibrane Kinetic Mixing, Millicharged Particles and SUSY Breaking
• SuperWIMP Solutions to Small Scale Structure Problems
• Aspects of the Stueckelberg Extension
• Kinetic Mixing and the Supersymmetric Gauge Hierarchy
• Massless Gauge Bosons other than the Photon
• Supergravity at Colliders
• Extra-weakly Interacting Dark Matter
• Gamma Ray Spectrum from Gravitino Dark Matter Decay
• Illuminating the Hidden Sector of String Theory by Shining Light through a Magnetic Field
• Signatures of a hidden cosmic microwave background
• Hidden fermion as milli-charged dark matter in Stueckelberg Z' model
• A study of late decaying charged particles at future colliders
• Stau-catalyzed ${}^6$Li Production in Big-Bang Nucleosynthesis
• High Energy Cosmic Rays from the Decay of Gravitino Dark Matter
• Gamma rays and positrons from a decaying hidden gauge boson
• Gauge Threshold Corrections in Intersecting Brane World Models
• Gamma-Rays from Decaying Dark Matter
• Antimatter Signatures of Gravitino Dark Matter Decay
• A Supersymmetric Stueckelberg U(1) Extension of the MSSM
• Astrophysical Bounds on Milli-Charged Particles in Models with a Paraphoton
• New bounds on millicharged particles from cosmology
• Dark Matter Halos with Cores from Hierarchical Structure Formation
• A Very Narrow Shadow Extra Z-boson at Colliders
• LHC and ILC probes of hidden-sector gauge bosons
• Sterile neutrinos as subdominant warm dark matter
• Constraints on Supersymmetric Models from Catalytic Primordial Nucleosynthesis of Beryllium
• Thermal relic abundances of long-lived staus
• Vacuum Structure of the $\mu$-Problem Solvable Extra U(1) Models
• Eluding the BBN constraints on the stable gravitino
• A note on the primordial abundance of stau NLSPs
• Gravitino Dark Matter with Weak-Scale Right-Handed Sneutrino
• The low energy frontier: probes with photons
• Prospects of a Search for a New Massless Neutral Gauge Boson at the ILC

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