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9–11 May 2022
University of Pittsburgh
US/Eastern timezone

Learning the composition of Ultra-High Energy Cosmic Rays

10 May 2022, 15:00
15m
Lawrence Hall 105

Lawrence Hall 105

Speaker

Michele Tammaro

Description

We use use statistical inference to derive the mass composition of Pierre Auger Open Data at different energies. We simulate showers for all elements between proton and iron and use them to train a set of classifiers, each one trained to distinguish set of primaries by their 𝑋𝑚𝑎𝑥 distributions. By unfolding this data, we can obtain the most probable mass composition distribution for each energy bin. Moreover, we use timing information to correlate data from ground detectors to 𝑋𝑚𝑎𝑥 , which allows us to extract the mass composition from non-hybrid showers. We show the results using four different high energy hadronic model inputs for our simulations.

Author

Michele Tammaro

Presentation materials