4–12 Jul 2018
Europe/Athens timezone
Group photo: indico.cern.ch/event/663474/images/19808-ICNFP_2018_Group_Photo.JPG

The Pierre Auger Observatory: review of latest results and perspectives

12 Jul 2018, 15:00
30m
Room 1

Room 1

Oral presentation Main Conference Session

Speaker

Dariusz Gora

Description

The Pierre Auger Observatory is the world's largest operating ultra
high energy cosmic rays (UHECRs) detection system.
It combines a surface array to measure secondary particles at ground
level together with a fluorescence detector to measure the development
of air showers in the atmosphere above the array. The detector allows
a detailed measurement of energy spectrum, the mass composition and
arrival directions of primary cosmic rays in the energy range above
10^17 eV. The data collected at the Observatory over the last decade
show the suppression of the cosmic ray flux at energies above 4x10^19
eV. However, it is still unknown if this suppression is caused by
the propagation of cosmic rays or rather by energy limitation of their
sources. The other puzzle is the origin of UHECRs. Some clues can be
drawn from studying the distribution of their arrival directions. The
recently observed dipole anisotropy has an orientation which indicates
an extragalactic origin of UHECRs. The surface detector array is also
sensitive to ultra high energy neutrinos of all flavours and photons.
The recent neutrino and photon limits provided by the Observatory
can constrain models of the cosmogenic neutrino production and the
exotic scenarios of the UHECRs origin, such as the decay of super
heavy particles. In this talk the recent results on the energy
spectrum, mass composition and arrival directions of cosmic rays
measurements and the future perspectives will be presented.

Primary authors

Dariusz Gora for the Pierre Auger Collaboration

Presentation materials