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update a vertex smearing parameters for 2025 OO MC #48579

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update a vertex smearing parameters for 2025 OO MC #48579

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b1f223d
Added BS for 2025 OO collisions
liuxiaoyuyuyu Jul 18, 2025
f97b131
BS for 2025 OO collisions
liuxiaoyuyuyu Jul 18, 2025
899e082
Added BS for 2025 OO collisions
liuxiaoyuyuyu Jul 18, 2025
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1 change: 1 addition & 0 deletions Configuration/StandardSequences/python/VtxSmeared.py
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Original file line number Diff line number Diff line change
Expand Up @@ -77,5 +77,6 @@
'Realistic2024PbPbCollision' : 'IOMC.EventVertexGenerators.VtxSmearedRealistic2024PbPbCollision_cfi',
'Nominal2025OOCollision' : 'IOMC.EventVertexGenerators.VtxSmearedNominal2025OOCollision_cfi',
'Realistic2025pOCollision' : 'IOMC.EventVertexGenerators.VtxSmearedRealistic2025pOCollision_cfi',
'Realistic2025OOCollision' : 'IOMC.EventVertexGenerators.VtxSmearedRealistic2025OOCollision_cfi',
}
VtxSmearedDefaultKey='DBrealistic'
15 changes: 14 additions & 1 deletion IOMC/EventVertexGenerators/python/VtxSmearedParameters_cfi.py
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Expand Up @@ -1123,6 +1123,19 @@
Z0 = cms.double(0.569058)
)

# From 2025 OO data runs 394153-394217, exluding runs with VdM scans, i.e 394154 and 394217
Realistic2025OOCollisionVtxSmearingParameters = cms.PSet(
Phi = cms.double(0.0),
BetaStar = cms.double(50),
Emittance = cms.double(6.684e-08),
Alpha = cms.double(0.0),
SigmaZ = cms.double(5.2929),
TimeOffset = cms.double(0.0),
X0 = cms.double(0.0158483),
Y0 = cms.double(-0.00652439),
Z0 = cms.double(0.557563)
)

# Parameters for HL-LHC operation at 13TeV
HLLHCVtxSmearingParameters = cms.PSet(
MeanXIncm = cms.double(0.),
Expand All @@ -1140,4 +1153,4 @@
BunchLengthInm = cms.double(0.090),
CrabbingAngleCrossingInurad = cms.double(380.0),
CrabbingAngleSeparationInurad = cms.double(0.0)
)
)
4 changes: 2 additions & 2 deletions IOMC/EventVertexGenerators/python/VtxSmearedRealistic2023PbPbCollision_cfi.py
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@@ -1,7 +1,7 @@
import FWCore.ParameterSet.Config as cms
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@kpedro88 kpedro88 Jul 18, 2025

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I think a new file should be created rather than editing the 2023PbPb file to contain 2025OO. In fact, the above modification to Configuration/StandardSequences/python/VtxSmeared.py will not run properly unless this is done.


from IOMC.EventVertexGenerators.VtxSmearedParameters_cfi import Realistic2023PbPbCollisionVtxSmearingParameters,VtxSmearedCommon
from IOMC.EventVertexGenerators.VtxSmearedParameters_cfi import Realistic2025OOCollisionVtxSmearingParameters,VtxSmearedCommon
VtxSmeared = cms.EDProducer("BetafuncEvtVtxGenerator",
Realistic2023PbPbCollisionVtxSmearingParameters,
Realistic2025OOCollisionVtxSmearingParameters,
VtxSmearedCommon
)