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Study of the first interactions effect on lateral fluctuations of air showers at the Pierre Auger Observatory

Grant number: 06/00159-6
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): January 01, 2007
Effective date (End): December 31, 2010
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Philippe Gouffon
Grantee:Diogo Bernardes Tridapalli
Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The atmospheric showers produced by cosmic rays with energies above 10 EeV are detected in the Pierre Auger Observatory using two different type of detectors. With these measurements, the energy, the direction and possibly the composition of the primary particle can be inferred. However, the quantity of secondary particles detected by the surface detectors far from the shower core fluctuates more than expected from the simulation. This project will study and understand these fluctuations, that limit the precision of the reconstructed shower direction. (AU)

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
TRIDAPALLI, Diogo Bernardes. Study of the effect of the primary particles composition in the lateral distribution of air showers from the Pierre Auger Observatory. 2012. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física (IF/SBI) São Paulo.

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