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Observing Muon Decays in Water Cherenkov Detectors at the Pierre Auger Observatory.

DE2006875570

Publication Date	2006
Personal Author	Allison, P.; Arneodo, F.; Bertou, X.; Busca, N.; Ghia, P. L.; Medina, C.; Navarra, G.; Nellen, L.; Ibarguen, H. S.; Ranchon, S.; Urban, M.; Vilasensor, L.
Page Count	8
Abstract	Muons decaying in the water volume of a Cherenkov detector of the Pierre Auger Observatory provide a useful calibration point at low energy. Using the digitized waveform continuously recorded by the electronics of each tank, we have devised a simple method to extract the charge spectrum of the Michel electrons, whose typical signal is about 1/8 of a crossing vertical muon. This procedure, moreover, allows continuous monitoring of the detector operation and of its water level. We have checked the procedure with high statistics on a test tank at the Observatory base and applied with success on the whole array.
Keywords	Muon decays Muons Decay Waveforms Electrons Neutrinos Cherenkov detectors Pierre Auger Observatory
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200618

Observing Muon Decays in Water Cherenkov Detectors at the Pierre Auger Observatory.

Observing Muon Decays in Water Cherenkov Detectors at the Pierre Auger Observatory.
DE2006875570

Publication Date	2006
Personal Author	Allison, P.; Arneodo, F.; Bertou, X.; Busca, N.; Ghia, P. L.; Medina, C.; Navarra, G.; Nellen, L.; Ibarguen, H. S.; Ranchon, S.; Urban, M.; Vilasensor, L.
Page Count	8
Abstract	Muons decaying in the water volume of a Cherenkov detector of the Pierre Auger Observatory provide a useful calibration point at low energy. Using the digitized waveform continuously recorded by the electronics of each tank, we have devised a simple method to extract the charge spectrum of the Michel electrons, whose typical signal is about 1/8 of a crossing vertical muon. This procedure, moreover, allows continuous monitoring of the detector operation and of its water level. We have checked the procedure with high statistics on a test tank at the Observatory base and applied with success on the whole array.
Keywords	Muon decays Muons Decay Waveforms Electrons Neutrinos Cherenkov detectors Pierre Auger Observatory
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200618