Speaker
Prof.
INA SARCEVIC
(UNIVERSITY OF ARIZONA)
Description
We evaluate the high energy prompt atmospheric neutrino flux
using three different frameworks for calculating the heavy
quark production cross section in QCD: NLO perturbative QCD,
kT factorization including low-x resummation, and the dipole
model including parton saturation. We determine QCD parameters,
such as the charm quark mass, factorization and renormalization
scales that provide the best description of the total charm
cross section measured at fixed target experiments, at RHIC and
at LHC as well as the best description of the differential cross
sections for charm and bottom production compared with the
latest data on forward charm meson production from LHCb at 7 TeV
and at 13 TeV. We include nuclear effects and we find the
reduction of the flux due to nuclear effects to range from
10% to 50% at the highest energies. Finally, we compare our
results with the IceCube limit on the prompt neutrino flux,
which is already providing valuable information about some
of the QCD models.
Primary author
Prof.
INA SARCEVIC
(UNIVERSITY OF ARIZONA)