Measurements of Cosmic Rays with IceTop/IceCube: Status and Results
  The IceCube Observatory at the South Pole is composed of a cubic kilometer scale neutrino telescope buried beneath the icecap and a square-kilometer surface water Cherenkov tank detector array known as IceTop. The combination of the surface array with the in-ice detector allows the dominantly electromagnetic signal of air showers at the surface and their high-energy muon signal in the ice to be measured in coincidence. This ratio is known to carry information about the nuclear composition of the primary cosmic rays. This paper reviews the recent results from cosmic-ray measurements performed with IceTop/IceCube: energy spectrum, mass composition, anisotropy, search for PeV gamma sources, detection of high energy muons to probe the initial stages of the air shower development, and study of transient events using IceTop in scaler mode. 
Alessio Tamburro
astro-ph.HE astro-ph.IM