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Anisotropy in cosmic rays from internal transitions in neutron stars

Abstract : We discuss the possibility that some recently measured anisotropic cosmic ray components in the TeV-PeV energy range may be an indication of the ejection of a peculiar type of matter. We present a model where a neutron star internal transition with nuclear deconfinement of the quark content takes place. This catastrophic event may cause a mass ejection process seeding the insterstelar medium with droplets of quark matter, so called nuclearites. Neutralization of these droplets in molecular clouds may drive the anisotropy since quasi-rectilinear trajectories are allowed. Complementary information from current experimental settings on earth or magnetic spectrometers on the ISS may shed light on this exotic form of matter.
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Submitted on : Tuesday, April 19, 2022 - 4:14:56 PM
Last modification on : Wednesday, April 20, 2022 - 3:40:05 AM

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M. Ángeles Pérez-García, Kumiko Kotera, Joseph Silk. Anisotropy in cosmic rays from internal transitions in neutron stars. Nuclear Inst. and Methods in Physics Research, A, 2014, 742, pp.237-240. ⟨10.1016/j.nima.2013.11.007⟩. ⟨insu-03645666⟩

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