Small scale anisotropies of UHECRs from super-heavy halo dark matter

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The decay of very heavy metastable relics of the Early Universe can produce ultra-high energy cosmic rays (UHECRs) in the halo of our own Galaxy. In this model, no Greisen-Zatsepin-Kuzmin cutoff is expected because of the short propagation distances. They show here that, as a consequence of the hierarchical build up of the halo, this scenario predicts the existence of small scale anisotropies in the arrival directions of UHECRs, in addition to a large scale anisotropy, known from previous studies. They also suggest some other observable consequences of this scenario which will be testable with upcoming experiments, as Auguer, EUSO ... continued below

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607 Kilobytes pages

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Blasi, P. & Sheth, R. K. October 23, 2001.

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The decay of very heavy metastable relics of the Early Universe can produce ultra-high energy cosmic rays (UHECRs) in the halo of our own Galaxy. In this model, no Greisen-Zatsepin-Kuzmin cutoff is expected because of the short propagation distances. They show here that, as a consequence of the hierarchical build up of the halo, this scenario predicts the existence of small scale anisotropies in the arrival directions of UHECRs, in addition to a large scale anisotropy, known from previous studies. They also suggest some other observable consequences of this scenario which will be testable with upcoming experiments, as Auguer, EUSO and OWL.

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607 Kilobytes pages

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  • ICRC 2001, Conference location not supplied, Conference dates not supplied

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  • Report No.: FERMILAB-Conf-01/303-A
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 787842
  • Archival Resource Key: ark:/67531/metadc723154

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  • October 23, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 1, 2016, 4:58 p.m.

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Blasi, P. & Sheth, R. K. Small scale anisotropies of UHECRs from super-heavy halo dark matter, article, October 23, 2001; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc723154/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.