3-10 August 2016
Chicago IL USA
US/Central timezone
There is a live webcast for this event.

The Origin of the Broken Power Law Spectrum for Cosmic Rays (15' + 5')

4 Aug 2016, 12:55
Chicago 10 ()

Chicago 10

Oral Presentation Astro-particle Physics and Cosmology Astro-particle Physics and Cosmology


John Swain (Northeastern University (US))


A long-standing puzzle in cosmic ray physics has been the nature of the spectrum, which is very well modeled by a broken power law with differing exponents, both close to -3, above and below the "knee". We show that a rather simple hadronic evaporation model reproduces the correct exponents, and the location of the knee without free parameters. The model is predictive, with some successful predictions already and has broader implications for nuclear physics and particle astrophysics.

Primary author

John Swain (Northeastern University (US))


Prof. Allan Widom (Northeastern University) Prof. Yogendra Widom (Northeastern University)

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