The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray showers detected by the Pierre Auger Observatory

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 using events simultaneously observed by the fluorescence and the surface detector of the Pierre Auger Observatory (hybrid events). We validate the Monte Carlo results showing how LTP functions from data are in good agreement with simulations.

Literatura y pensamiento en Francia. Un ejemplo : el panfleto

First of all, with this dissertation we have set as principal goal to define and to characterize the pamphlet in a French-speaking context. To do this, we will try to delimit this type of text and to demonstrate that in many occasions this term is used for classifying documents whose principal characteristic is the polemic. In the approach to this dissertation, we have mainly found two problems: on the one hand to define what a pamphlet is and to demarcate it from other similar texts both from the point of view of the content as well as the form; and on the other hand, to try to discern if the pamphlet can be included under the title of Literature and if it constitutes a literary genre for itself. To do so, we will structure our investigation in several chapters gathered in two clearly delimited parts. At the end of each of them, we will draw some brief conclusions. The first part will be focused on the study of theoretical notions. We will approach this reflection from different perspectives: etymological, comparative, literary and generic. To do this, we will approach the theories of those schools or of those authors who are more convenient to our purpose, so both our matter of study and the areas where we want to study it, raise many problems of interpretation and classification. Our aim is not to do a study on the Literature concepts or on the Literary Genre, so we will simplify those theories that are related to its main characteristics...