Pierre Auger Observatory. Cosmic Ray Showers. Virtual Organization auger. Data consistency checks. Distribution of files. Newly registered files in LFC. Pierre Auger Observatory is studying ultra-high energy cosmic rays, the most
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Pierre Auger Observatory
Cosmic Ray Showers
Virtual Organization auger
Data consistency checks
Distribution of files
Newly registered files in LFC
Pierre Auger Observatory is studying ultra-high energycosmic rays,the most
energetic and rarest of particles in the universe. When these particles strike
the earth's atmosphere, they produce extensive air showers made of billions
of secondary particles. Detectors are located near Malargüe, Argentina east
of the Andes Mountains.
When a cosmic ray particle reaches Earth, it collides with a nucleus high in the atmosphere, producing many secondary particles, which share the original primary particle's energy. The secondary particles subsequently collide with other nuclei in the atmosphere, creating a new generation of energetic particles that continue the process, multiplying the total number of particles. The resulting particle cascade, called "an extensive air shower," arrives at ground level with billions of energetic particles extending over a large area.
Number of files on SE
Size of files on SE
14 sites are used to store VO auger data, 9 with significant number of files are shown. Many small files in Aachen are from older productions (before grouping all small files into bigger tarrballs) and from individual users.
The average size of files depends on the type of simulation.
Neutrino showers simulated during February and March 2010
produce small output files.
Data Management for the VO auger
Jiří Chudoba1, Tomáš Kouba1, Jaroslava Schovancová1, Jean-Noel Albert2
1 - Institue of Physics, AS CR, Prague, Czech Republic
2 - LAL CNRS-IN2P3, Paris, France
Simulation Search Pages
Support for shower simulations and simulated events
Selection between Grid Simulations or SRB Mirrors
CHEP 2010, Jiri.Chudoba@fzu.cz