Space and Cosmic Ray Physics Seminar

Calendar
Department of Physics Calendar
Date
Nov 02, 2026 4:30pm - 5:30pm
Location
online via Zoom

Description

Title: Charmed hadron production in the QGSJET-III model and the prompt atmospheric neutrino background

Speaker: Sergey Ostapchenko, University of Hamburg, Germany

Abstract: I shall discuss the treatment of charmed hadron production in the QGSJET-III model, including both perturbative and nonperturbative contributions. The magnitude of the perturbative contribution is mainly constrained by experimental studies of D meson production at the Large Hadron Collider. In turn, for the Regge-based treatment of nonperturbative intrinsic charm, the main constraints arise from measurements of Λc baryons at fixed target energies. The model is applied for a calculation of the prompt atmospheric muon neutrino flux and the corresponding uncertainties are discussed.

Notes: Join the meeting at 4:15 for meet and greet.
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