
All Physics Faculty Publications
Title
Search for Correlated High Energy Cosmic Ray Events with CHICOS
Document Type
Article
Journal/Book Title/Conference
Journal of Physics G: Nuclear and Particle Phyics
Volume
31
Issue
5
Publisher
Institute of Physics
Publication Date
2005
First Page
409
Last Page
416
Abstract
We present the results of a search for time correlations in high energy cosmic ray data (primary E > 1014 eV) collected by the California HIgh school Cosmic ray ObServatory (CHICOS) array. Data from 60 detector sites spread over an area of 400 km2 were studied for evidence of isolated events separated by more than 1 km with coincidence times ranging from 1 μs up to 1 s. The results are consistent with the absence of excess coincidences except for a 2.9σ excess observed for coincidence times less than 10 μs. We report upper limits for the coincidence probability as a function of coincidence time.
Recommended Citation
Carlson, B. E.; Brobeck, E.; Jillings, C. J.; Larson, Michelle B.; Lynn, T. W.; McKeown, R. D.; Hill, James E.; Falkowski, B. J.; Seki, R.; Sepikas, J.; and Yodh, G. B., "Search for Correlated High Energy Cosmic Ray Events with CHICOS" (2005). All Physics Faculty Publications. Paper 6.
https://digitalcommons.usu.edu/physics_facpub/6
http://www.iop.org/EJ/abstract/0954-3899/31/5/011
Comments
Originally published by the Institute of Physics. Publisher's PDF available through remote link.