2016 International Conference on Ultra-High Energy Cosmic Rays

Session

Oct.12AM1

Oct.12AM1

12 Oct 2016, 09:00

Kyoto Research Park

Conveners

Oct.12AM1

• Takashi Sako (Nagoya University (JP))

70. Measurements of the mass composition of UHECRs with the Pierre Auger Observatory

Matthias Plum

12/10/2016, 09:00

As a hybrid cosmic ray detector, the Pierre Auger Observatory can measure the longitudinal air shower
development with the fluorescence detector, and the lateral distribution of particles reaching the ground
with the surface detector. We report on the measurements of the first two moments of the Xmax
distributions measured as a function of energy with the fluorescence detector and convert them...

55. Composition Measurements via Depth of Airshower Maximum at the Telescope Array

John Belz (University of Utah)

12/10/2016, 09:25

The chemical composition of ultrahigh energy cosmic rays (UHECR) is studied primarily through observations of the depth of airshower maximum (Xmax), as seen by nitrogen fluorescence telescopes. The Telescope Array (TA) observatory measures Xmax using both stereo fluorescence detectors and fluorescence/ground array hybrid detection to accurately determine extensive air shower geometry. We...

76. Auger-TA composition working group report

William Hanlon (University of Utah)

12/10/2016, 09:45

64. Hadronic interaction studies at the Pierre Auger Observatory

Dr Darko Veberic (Karlsruhe Institute of Technology (DE))

12/10/2016, 10:05

The muon content of extensive air showers produced by the ultra-high energy cosmic rays is an observable sensitive to the composition of the primary particle and to the properties of hadronic interactions driving the air-shower cascade. We present different methods to estimate the muon number at the ground and the muon production depth using measurements of the longitudinal, lateral, and...