doi: 10.1103/PhysRevLett.90.121102. Epub 2003 Mar 25.
Strangelets as cosmic rays beyond the Greisen-Zatsepin-Kuzmin cutoff
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- PMID:12688863
- DOI: 10.1103/PhysRevLett.90.121102
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Strangelets as cosmic rays beyond the Greisen-Zatsepin-Kuzmin cutoff
Jes Madsen et al. Phys Rev Lett..
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Abstract
Strangelets (stable lumps of quark matter) can have masses and charges much higher than those of nuclei, but have very low charge-to-mass ratios. This is confirmed in a relativistic Thomas-Fermi model. The high charge allows astrophysical strangelet acceleration to energies orders of magnitude higher than for protons. In addition, strangelets are much less susceptible to the interactions with the cosmic microwave background that suppress the flux of cosmic ray protons and nuclei above energies of 10(19)-10(20) eV (the Greisen-Zatsepin-Kuzmin cutoff). This makes strangelets an interesting possibility for explaining ultrahigh energy cosmic rays.
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- Comment on "Strangelets as cosmic rays beyond the Greisen-Zatsepin-Kuzmin cutoff".Balberg S.Balberg S.Phys Rev Lett. 2004 Mar 19;92(11):119001; author reply 119002. doi: 10.1103/PhysRevLett.92.119001. Epub 2004 Mar 18.Phys Rev Lett. 2004.PMID:15089181No abstract available.
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