Title: Heavy Quark Production at Ultrahigh Cosmic Ray Energies and Its Implications in Neutrino Physics 

Speaker: Prof. Victor Goncalves (Federal University of Pelotas, Brazil)  

Time: 09:00am-10:00am, June. 24 (Friday), 2022 

Place: Zoom Meeting ID: 870 3688 9404, Passcode: 0624 

Abstract:  

The predictions for the atmospheric neutrino flux at high energies strongly depend on the contribution of prompt neutrinos, which is determined by the production of charmed meson in the atmosphere at very forward rapidities. In this talk I will review the description of the heavy quark production at very high energies and forward rapidities and a detailed mapping of the dominant kinematical domains contributing to the prompt atmospheric neutrino flux will be presented.  The impact on the predictions for the prompt neutrino flux will be analyzed assuming different values for the probability to find an intrinsic charm in the nucleon and the presence of nonlinear effects in the QCD dynamics. Finally, a comparison with the IceCube data will be presented.