TY  - JOUR
AU  - Pierre Auger Collaboration (Abreu, P. et al
AU  - Pastor, S.
PY  - 2011
DA  - 2011//
TI  - The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray showers detected by the Pierre Auger Observatory
T2  - Astropart Phys.
JO  - Astroparticle Physics
SP  - 266
EP  - 276
VL  - 35
IS  - 5
PB  - Elsevier Science Bv
KW  - Ultra-High Energy Cosmic Rays
KW  - Pierre Auger Observatory
KW  - Extensive Air Showers
KW  - Trigger performance
KW  - Surface detector
KW  - Hybrid detector
AB  - In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an Extensive Air Shower (EAS) to trigger an individual detector of a ground based array as a function of distance to the shower axis, taking into account energy, mass and direction of the primary cosmic ray. We apply this concept to the surface array of the Pierre Auger Observatory consisting of a 1.5 km spaced grid of about 1600 water Cherenkov stations. Using Monte Carlo simulations of ultra-high energy showers the LTP functions are derived for energies in the range between 10(17) and 10(19) eV and zenith angles up to 65 degrees. A parametrization combining a step function with an exponential is found to reproduce them very well in the considered range of energies and zenith angles. The LTP functions can also be obtained from data
SN  - 0927-6505
UR  - http://arxiv.org/abs/arXiv:1111.6645
UR  - https://doi.org/10.1016/j.astropartphys.2011.08.001
DO  - 10.1016/j.astropartphys.2011.08.001
LA  - English
N1  - WOS:000297434500006
ID  - PierreAugerCollaborationAbreu+Pastor2011
ER  -