Monopoles, strings and dark matter

Abstract

We develop a scenario whereby monopoles in a hidden sector yield a decaying dark matter candidate of interest for the PAMELA and FERMI $e^{\pm }$ excesses. The monopoles are not completely hidden due to a very small kinetic mixing and a hidden photon mass. The latter also causes the monopoles and anti-monopoles to be connected by strings. The resulting long-lived objects eventually decay to hidden photons which tend to escape galactic cores before decaying. The mass scales are those of the hidden photon ($\approx 500$ MeV), the monopole ($\approx 3$ TeV) and the mixing scale (close to the Planck scale). A gauge coupling in the hidden sector is the only other parameter. This coupling must be strong and this results in light point-like monopoles and light thin strings.

21 pages, various improvements and additional references

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Cited by in corpus (20)

• Beyond the Standard Models with Cosmic Strings
• Dark matter monopoles, vectors and photons
• Bounding milli-magnetically charged particles with magnetars
• Spurious Poles in the Scattering of Electric and Magnetic Charges
• Stabilisation of semilocal strings by dark scalar condensates
• Magnetic monopole bibliography
• Parker Bounds on Monopoles with Arbitrary Charge from Galactic and Primordial Magnetic Fields
• Milli-Magnetic Monopole Dark Matter and the Survival of Galactic Magnetic Fields
• Extracting the size of the cosmic electron-positron anomaly
• Zwanziger's pairwise little group on the celestial sphere
• Continuous Gravitational Waves and Magnetic Monopole Signatures from Single Neutron Stars
• Gravitational capture of magnetic monopoles by primordial black holes in the early universe
• Gravitational waves and monopoles dark matter from first-order phase transition
• Hidden Sector Monopole Dark Matter with Matter Domination
• Electroweak strings with dark scalar condensates and their (in)stability
• Scattering Amplitudes for Monopoles: Pairwise Little Group and Pairwise Helicity
• The qutrit as a heat diode and circulator
• No room for minimal monopole dark matter
• Geometrizing the Anomaly
• Black hole dark monopole system