MARIAZZI Analisa Gabriela
congresos y reuniones científicas
Measurement of the UHECR energy spectrum using data from the Surface Detector of the Pierre Auger Observatory
PIERRE AUGER COLLABORATION (J. ABRAHAM, ... , A. MARIAZZI, ET AL)
Conferencia; 30th International Cosmic Ray Conference; 2007
At the southern site of the Pierre Auger Observatory, which is close to completion,an exposure that significantly exceeds the largest forerunner experiments has alreadybeen accumulated. We report a measurement of the cosmic ray energy spectrum based onthe high statistics collected by the surface detector. The methods developed todetermine the spectrum from reconstructed observables are described. The energycalibration of the observables, which exploits the correlation of surface detectordata with fluorescence measurements in hybrid events, is presented in detail.Systematic uncertainties in the measured cosmic ray energy spectrum are discussed.