# ICRC2015

July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

## Latest Results on Cosmic Ray Spectrum and Composition from Three Years of IceTop and IceCube

Aug 4, 2015, 2:30 PM
15m
World Forum Theater (World Forum)

### World Forum Theater

#### World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution CR-EX

### Speaker

Katherine Rawlins (University of Alaska Anchorage)

### Description

With the IceTop detector at the South Pole, a spectrum of cosmic ray air shower size $S_{125}$ can be unfolded into an energy spectrum of primary cosmic rays. When the IceTop data is analyzed in coincidence with high-energy muon energy loss information from the deep IceCube detector, both the spectrum and mass composition of primary cosmic rays can be extracted using a neural network. Both of these analyses have been applied to three years of IceTop and IceCube data: from mid-2010 to mid-2013, using the 73-station/79-string and 81-station/86-string detectors. Both analyses are now sensitive to energies of up to 500 PeV. The performance and relative advantages of the two analyses will be discussed, and both all-particle spectra as well as individual spectra for elemental groups will be presented.
Collaboration IceCube 386

### Primary author

Katherine Rawlins (University of Alaska Anchorage)