Comparison between proton and iron results


ECUTS: 1 TeV, MinEnergy: 100 GeV

Red: proton
Blue: iron

Results

primary particle energy

Dot line: without cut
normal line: with DOM#>80

primary particle energy weighted by the CR flux

Dot line: without cut
normal line: with DOM#>80

cos(zenith angle) of the primary particle.

Dot line represents events whose hit DOM number above 80. (high energy events)

cos(zenith angle) of the primary particle weighted by hte CR flux.

Dot line represents events whose hit DOM number above 80. (high energy events)

azimuth angle of the primary particle.

cos(zenith angle) of the primary particle Vs the energy.

larger dots represents events whose hit DOM number above 80. (high energy events)

Multiplicity of muons

Dot line: without cut
normal line: with DOM#>80

Multiplicity Vs primary energy

cos(Zenith angle) Vs Multiplicity of muons

Energy distribution at IceCube detector (in ice)

Dot line: without cut
normal line: with DOM#>80

Energy distribution at IceCube detector (in ice) weighted by the CR flux

Dot line: without cut
normal line: with DOM#>80

Energy in ice Vs primary energy

Energy in ice Vs primary energy

Iron leands to ~factor 2 more muon bundle energy

cos(zenith angle) Vs energy in ice

Energy distribution at surface

Dot line: without cut
normal line: with DOM#>80

Energy distribution at surface weighted by the CR flux

Dot line: without cut
normal line: with DOM#>80

Energy at surface Vs primary energy

Energy at surface Vs primary energy

Iron leands to ~factor 2 more muon bundle energy

cos(zenith angle) Vs energy at surface

Energy at surface Vs energy in ice

There is a constant energy loss during the propagation from surface to the detector (~log10(0.2)~30%)

Npe distribution at IceCube detector (in ice)

ECUTS thres 1 TeV

Dot line: without cut
normal line: with DOM#>80

Npe distribution at IceCube detector (in ice)

ECUTS thres 1 TeV

Dot line: without cut
normal line: with DOM#>80

Npe Vs in-ice bundle energy

Cos(zenith angle) Vs Npe in ice


Comaprison with observational data

Npe distribution (corresponding to ~62 days)

Corsika data is much less than observed.

data: black
MC: red



Keiichi Mase
Last modified: Sat Apr 5 21:13:21 JST 2008