Vážení kolegové,
dovolujeme si Vás pozvat na seminář Sekce fyziky elementárních částic, který přednese Jakub Vícha.
Více informací naleznete v pozvánce.
Abstract:
One of the fundamental questions in physics is the origin of the most energetic
cosmic rays. This has been obscured mainly by uncertainties in their mass composition
arising from the modelling of hadronic interactions in the air showers that these particles
induce beyond the LHC energies in the central-mass system. For some time now,
discrepancies between the model predictions and air-shower measurements have been
complicating our efforts, especially due to the lack of the predicted number of muons on
ground. I will review past and present attempts to test the models of hadronic interactions by
various experiments. The talk will culminate with recently revealed new problem in
air-shower modelling regarding the predicted depth of shower maximum. I will also discuss
the consequences on the interpretation of measured air-shower data.
