Estimación de cotas de energía para rayos cósmicos afectados durante un decrecimiento Forbush a partir de datos del observatorio lago.

Abstract

The space weather phenomena have important impacts on science and the current technological structure. This work focuses on the interaction between transient solar events and cosmic rays, specifically the Forbush decrease events (Fd). The Fd consists of a decrease / affect in ground level radiation counts during an interplanetary coronal mass ejection that traverses the geomagnetic field. In this work we a method to estimate the cosmic rays affected during the March 2012 Fd in terms of geomagnetic shear stiffness. To do this, we have used the data recorded in San Carlos de Bariloche, Argentina, by one of the LAGO observatory detectors (an extended observatory of cosmic radiation over Latin America, from Mexico to Antarctica). This Cherenkov water Cherenkov detector works as a muon count, that is, it allowed us to follow the muon rate in the soil and because these muons come from hadronic interactions, we built a shear stiffness function to estimate which cosmic rays primaries, according to their magnetic stiffness, were diverted, out of their track into the atmosphere. To verify this approach, we validate this function through LAGO ARTI toolkit, a framework of techniques and computational codes (CORSIKA, GEANT4, C ++, Python), that is, we calculate the secondaries produced by this cosmic ray rate and then we analyze the signal produced by these secondaries in the Geant4 detector model.