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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:5
UID:UW-Physics-Event-6916
DTSTART:20220602T193000Z
DTEND:20220602T203000Z
DTSTAMP:20260414T114410Z
LAST-MODIFIED:20220601T175137Z
LOCATION:https://uwmadison.zoom.us/j/95919661413?pwd=UHRuZTZmangzL09nc
 ld6UXJTdTJuQT09
SUMMARY:Impact of intrinsic charm in the nucleon and gluon saturation 
 effects on the prompt atmospheric neutrino flux for IceCube\, NPAC (Nu
 clear/Particle/Astro/Cosmo) Forum\, Rafał Maciuła\,  Institute of Nu
 clear Physics\, Polish Academy of Sciences\, Poland
DESCRIPTION:The predictions for the atmospheric neutrino flux at high 
 energies
\nstrongly depend on the contribution of prompt neutrinos\, w
 hich are determined by the production of charmed
\nmesons in the atmos
 phere at very forward rapidities.
\nIn this seminar I will present our
  estimations of the related cross
\nsections\, recently obtained and d
 iscussed taking
\ninto account the presence of an intrinsic charm (IC)
  component in the proton wave function and the QCD dynamics modified b
 y the onset of saturation effects. In this study the impact on the pre
 dictions for the prompt neutrino flux is investigated assuming differe
 nt values for the probability to find the IC in the nucleon (Pic). We 
 demonstrate that for Pic ∼ 1%\, the IC component dominates the high-
 energy prompt neutrino flux. A first comparison with the IceCube data 
 is performed and upper limits on the amount of IC are obtained for the
  linear and nonlinear descriptions of the QCD dynamics.
\n
URL:https://www.physics.wisc.edu/events/?id=6916
END:VEVENT
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