Quark Matter Induced Extensive Air Showers

Abstract

If the dark matter of our galaxy is composed of nuggets of quarks or antiquarks in a colour superconducting phase there will be a small but non-zero flux of these objects through the Earth's atmosphere. A nugget of quark matter will deposit only a small fraction of its kinetic energy in the atmosphere and is likely to be undetectable. If however the impacting object is composed of antiquarks the energy deposited can be quite large. In this case nuclear annihilations within the nugget will trigger an extensive air shower the particle content of which is similar to that produced by an ultrahigh energy cosmic ray. This paper gives a qualitative description of the basic properties of such a shower. Several distinctions from an air shower initiated by a single ultra high energy nucleus will be described allowing these events to be distinguished from the cosmic ray background. The subtlety of these features may mean that some fraction of the high energy cosmic ray spectrum may in fact be due to this type of dark matter interaction. The estimated flux of dark matter nuggets and the energy deposited in the atmosphere are such that the Pierre Auger Observatory may prove an ideal facility to place constraints on the flux of heavy quark matter objects. This paper attempts to highlight the best techniques to search for a quark matter signature through an extensive air shower signal.

9 pages, 2 figures, Version accepted by Phys. Rev. D

References in corpus (19)

• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• Diffuse Galactic continuum gamma rays. A model compatible with EGRET data and cosmic-ray measurements
• Measurement of the energy spectrum of cosmic rays above 10^18 eV using the Pierre Auger Observatory
• The all-sky distribution of 511 keV electron-positron annihilation emission
• Microwave ISM Emission Observed by WMAP
• Inverse meson mass ordering in color-flavor-locking phase of high density QCD
• Diffuse X-ray Emission in a Deep Chandra Image of the Galactic Center
• "Nonbaryonic" Dark Matter as Baryonic Color Superconductor
• Inverse meson mass ordering in color-flavor-locking phase of high density QCD: erratum
• Extending the DAMA annual-modulation region by inclusion of the uncertainties in the astrophysical velocities
• Color-flavor locked strangelets
• Baryon Asymmetry, Dark Matter and Quantum Chromodynamics
• WMAP Haze: Directly Observing Dark Matter?
• 511 KeV Photons From Color Superconducting Dark Matter
• The Electrosphere of Macroscopic "Quark Nuclei": A Source for Diffuse MeV Emissions from Dark Matter
• Diffuse cosmic gamma-rays at 1-20 MeV: A trace of the dark matter?
• Width of the 511 KeV Line from the Bulge of the Galaxy
• Cosmic ray strangelets
• Third Level Trigger for the Fluorescence Telescopes of the Pierre Auger Observatory

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• Stringent neutrino flux constraints on anti-quark nugget dark matter
• Quark Nugget Dark Matter: No contradictions with neutrino flux constraints
• DAMA/LIBRA annual modulation and Axion Quark Nugget Dark Matter Model
• Atmospheric Radio Signals From Galactic Dark Matter
• Dark Matter searches using gravitational wave bar detectors: quark nuggets and newtorites
• When Dark Matter interacts with Cosmic Rays or Interstellar Matter: A Morphological Study
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