8-13 September 2013
Asilomar, California
US/Pacific timezone

Measurement of cosmic ray energy spectrum and composition with IceCube

11 Sep 2013, 16:20
20m
Asilomar, California

Asilomar, California

Asilomar Conference Grounds, 800 Asilomar Avenue, Pacific Grove, CA 93950-3704
Oral High-Energy Astrophysics (includes all cosmic ray physics) High Energy Astrophysics III

Speaker

Bakhtiyar Ruzybayev (University of Delaware)

Description

We report on the measurement of the all-particle cosmic ray energy spectrum and composition with IceCube. Results of two different techniques will be presented. The first result is a measurement of the all-particle cosmic ray energy spectrum in the energy range from 1.58 PeV to 1.26 EeV using the IceTop air shower array, which is the surface component of the IceCube Neutrino Observatory at the South Pole. The second result is a measurement of both cosmic ray energy spectrum and composition using neural network techniques and the full IceCube as a 3-dimensional cosmic ray detector. The measured energy spectrum exhibits clear deviations from a single power law above the knee around 4 PeV and below 1 EeV. In addition, the observed mean logarithmic mass is increasing up to at least 100 PeV.

Primary author

Bakhtiyar Ruzybayev (University of Delaware)

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