Sep 12 – 16, 2016
Europe/Zurich timezone
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Innovative features in modeling CR transport with DRAGON2: hadrons and diffuse gamma rays

Sep 15, 2016, 5:15 PM
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin


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Oral Contributions Cosmic rays Cosmic rays


Daniele Gaggero


We present DRAGON2, the new version of the well-known numerical package designed to simulate all processes related to cosmic-ray (CR) transport: diffusion (treated in a general, position-dependent way), reacceleration, advection, energy losses, nuclear processes.

This talk is focused on the propagation of hadrons, both from steady-state and transient sources in the Galaxy, discussing in detail the technical solutions, the new features and the difference with other codes in the literature.
We focus in particular on the energy losses, and on some aspects of diffusion, showing the implications of position-dependent diffusion coefficient on the interpretation of several long-standing anomalies in the gamma-ray data, and several relevant predictions for neutrino searches.

We also briefly cover the recently developed set of independent cross sections computed with FLUKA and the impact of this new ingredient on the determination of best-fit transport parameters.

Finally, we discuss the relevance of DRAGON2 for dark-matter related searches, with particular focus on the antiproton channel.

Primary author


Andrea Vittino (TU Munich) Dr Carmelo Evoli (Gran Sasso Science Institute) mattia di mauro (Stanford University)

Presentation materials