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Fixing the 4-component version of GST #58

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Fixing the 4-component version of GST #58

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16b7c8b
Correct the 4-component parameterization of GST
jsaffer May 21, 2025
d3c8cb1
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 21, 2025
fd0d6ca
Update GST_IT
jsaffer May 22, 2025
fbbb347
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 23, 2025
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2 changes: 1 addition & 1 deletion examples/icetop_book.py
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Expand Up @@ -6,7 +6,7 @@

from pathlib import Path

from icecube import icetray, hdfwriter, simclasses
from icecube import hdfwriter, icetray, simclasses

# The following is an example of some "Level3" files for which S-frames were retrofitted
# after production. But the input can be any IceTop simulation files containing S-frames.
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2 changes: 1 addition & 1 deletion examples/nugen_book.py
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Expand Up @@ -6,7 +6,7 @@

from pathlib import Path

from icecube import icetray, hdfwriter, simclasses
from icecube import hdfwriter, icetray, simclasses

FILE_DIR = Path("/data/sim/IceCube/2016/filtered/level2/neutrino-generator/21217/0000000-0000999/")
files = sorted(str(f) for f in FILE_DIR.glob("Level2_IC86.2016_NuMu.021217.0000*.i3.zst"))
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2 changes: 1 addition & 1 deletion examples/triggered_corsika_book.py
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Expand Up @@ -6,7 +6,7 @@

from pathlib import Path

from icecube import icetray, hdfwriter, simclasses
from icecube import hdfwriter, icetray, simclasses

FILE_DIR = Path("/data/sim/IceCube/2016/filtered/level2/CORSIKA-in-ice/21889/0000000-0000999")
files = sorted(str(f) for f in FILE_DIR.glob("Level2_IC86.2016_corsika.021889.00000*.i3.zst"))
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28 changes: 17 additions & 11 deletions src/simweights/_fluxes.py
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Expand Up @@ -311,22 +311,28 @@ class GlobalFitGST(CosmicRayFlux):


class GlobalFitGST_IT(CosmicRayFlux): # pylint: disable=invalid-name
r"""GlobalFitGST for four components [p, He, O, Fe].
r"""GlobalFitGST (4 populations) for four components [p, He, O, Fe].

The Oxygen group is the sum of Nitrogen and Aluminum groups of GlobalFitGST.
The Oxygen group is the sum of Carbon and Oxygen groups.
The Iron group is the sum of Iron, Tellurium and Mercury groups.
"""

pdgids = PDGID_4COMP
_funcs = (
lambda E: 0.7 * E**-2.66 * exp(-E / 1.2e5) + 0.015 * E**-2.4 * exp(-E / 4e6) + 0.0014 * E**-2.4 * exp(-E / 1.3e9),
lambda E: 0.32 * E**-2.58 * exp(-E / 1.2e5 / 2) + 0.0065 * E**-2.3 * exp(-E / 4e6 / 2),
lambda E: 0.01 * E**-2.40 * exp(-E / 1.2e5 / 7)
+ 0.0006 * E**-2.3 * exp(-E / 4e6 / 7)
+ 0.013 * E**-2.40 * exp(-E / 1.2e5 / 13)
+ 0.0007 * E**-2.3 * exp(-E / 4e6 / 13),
lambda E: 0.006 * E**-2.30 * exp(-E / 1.2e5 / 26)
+ 0.00023 * E**-2.2 * exp(-E / 4e6 / 26)
+ 0.0000025 * E**-2.2 * exp(-E / 1.3e9 / 26),
lambda E: 0.7000 * E**-2.66 * exp(-E / 1.2e5)
+ 0.0150 * E**-2.4 * exp(-E / 4e6)
+ 0.0012 * E**-2.4 * exp(-E / 1.5e9)
+ 0.00012 * E**-2.4 * exp(-E / 40e9),
lambda E: 0.3200 * E**-2.58 * exp(-E / 1.2e5 / 2) + 0.0065 * E**-2.3 * exp(-E / 4e6 / 2),
lambda E: 0.0100 * E**-2.40 * exp(-E / 1.2e5 / 6)
+ 0.0006 * E**-2.3 * exp(-E / 4e6 / 6)
+ 0.0130 * E**-2.40 * exp(-E / 1.2e5 / 8)
+ 0.0007 * E**-2.3 * exp(-E / 4e6 / 8),
lambda E: 0.0060 * E**-2.30 * exp(-E / 1.2e5 / 26)
+ 0.00021 * E**-2.2 * exp(-E / 4e6 / 26)
+ 0.0000011 * E**-2.2 * exp(-E / 1.5e9 / 26)
+ 0.00001 * E**-2.2 * exp(-E / 4e6 / 52)
+ 0.000053 * E**-2.2 * exp(-E / 4e6 / 80),
)


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