Predictions of the small scale clustering properties of ultra-high energy cosmic rays

Details Predictions of the small scale clustering properties of ultra-high energy cosmic rays Predictions of the small scale clustering properties of ultra-high energy cosmic rays

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aps..4cf.h1004y&link_type=abstract

American Physical Society, Fall 2009 Meeting of the Four Corners Section of the APS, October 23-24, 2009, abstract #H1.004

Physics

Scientific paper

I present theoretical estimates of the small scale clustering properties of ultra-high energy cosmic rays (UHECR) assuming that: (1) the UHECR sources are extragalactic, and (2) the Greisen-Zatsepin-Kuz'min effect is operational. I show that assumptions on the particle charge and intervening magnetic fields have a large effect on the predicted small scale clustering. Therefore, a measurement of the small scale clustering can be used to constrain the parameter space that describes the allowed distribution of particle charge and the allowed structure of the intervening magnetic fields. I show how such constraints can be determined in the near future.

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