CMSSW Reference Manual

00001 import FWCore.ParameterSet.Config as cms
00002 
00003 #
00004 # All units are cm and radians
00005 #
00006 # UNITS:
00007 #
00008 # TimeOffset in nanoseconds
00009 # spacial displacement in cm
00010 
00011 # common parameters
00012 VtxSmearedCommon = cms.PSet(
00013     src = cms.InputTag("source")
00014 )
00015 # Gaussian smearing
00016 GaussVtxSmearingParameters = cms.PSet(
00017     MeanX = cms.double(0.0),
00018     MeanY = cms.double(0.0),
00019     MeanZ = cms.double(0.0),
00020     SigmaY = cms.double(0.0015),
00021     SigmaX = cms.double(0.0015),
00022     SigmaZ = cms.double(5.3),
00023     TimeOffset = cms.double(0.0)
00024 )
00025 # Flat Smearing
00026 FlatVtxSmearingParameters = cms.PSet(
00027     MaxZ = cms.double(5.3),
00028     MaxX = cms.double(0.0015),
00029     MaxY = cms.double(0.0015),
00030     MinX = cms.double(-0.0015),
00031     MinY = cms.double(-0.0015),
00032     MinZ = cms.double(-5.3),
00033     TimeOffset = cms.double(0.0)
00034 )
00035 #############################################
00036 # Beta functions smearing (pp 7+7 TeV)
00037 #
00038 # Values taken from LHC optics simulation V6.5:
00039 # see https://proj-lhc-optics-web.web.cern.ch/proj-lhc-optics-web/V6.500/IR5.html
00040 # alpha = angle of the crossing plane 0 degrees means XZ plane
00041 # phi = half-crossing beam angle
00042 #
00043 # Emittance is the no normalized emittance in cm
00044 #
00045 # length variables are in cm
00046 #
00047 
00048 # 900 GeV collisions, transverse beam size = 283.2 microns 
00049 Early900GeVCollisionVtxSmearingParameters = cms.PSet(
00050     Phi = cms.double(0.0),
00051     BetaStar = cms.double(1100.0),
00052     Emittance = cms.double(7.29e-07),
00053     Alpha = cms.double(0.0),
00054     SigmaZ = cms.double(7.4),
00055     TimeOffset = cms.double(0.0),
00056     Y0 = cms.double(0.0),
00057     X0 = cms.double(0.0322),
00058     Z0 = cms.double(0.0)
00059 )
00060 # 10 TeV collisions, transverse beam size = 46 microns
00061 Early10TeVCollisionVtxSmearingParameters = cms.PSet(
00062     Phi = cms.double(0.0),
00063     BetaStar = cms.double(300.0),
00064     Emittance = cms.double(7.03e-08),
00065     Alpha = cms.double(0.0),
00066     SigmaZ = cms.double(3.8),
00067     TimeOffset = cms.double(0.0),
00068     Y0 = cms.double(0.0),
00069     X0 = cms.double(0.0322),
00070     Z0 = cms.double(0.0)
00071 )
00072 EarlyCollisionVtxSmearingParameters = cms.PSet(
00073     Phi = cms.double(0.0),
00074     BetaStar = cms.double(200.0),
00075     Emittance = cms.double(5.03e-08),
00076     Alpha = cms.double(0.0),
00077     SigmaZ = cms.double(5.3),
00078     TimeOffset = cms.double(0.0),
00079     Y0 = cms.double(0.0),
00080     X0 = cms.double(0.0322),
00081     Z0 = cms.double(0.0)
00082 )
00083 NominalCollisionVtxSmearingParameters = cms.PSet(
00084     Phi = cms.double(0.000142),
00085     BetaStar = cms.double(55.0),
00086     Emittance = cms.double(5.03e-08),
00087     Alpha = cms.double(0.0),
00088     SigmaZ = cms.double(5.3),
00089     TimeOffset = cms.double(0.0),
00090     Y0 = cms.double(0.0),
00091     X0 = cms.double(0.05),
00092     Z0 = cms.double(0.0)
00093 )
00094 NominalCollision1VtxSmearingParameters = cms.PSet(
00095     Phi = cms.double(0.0),
00096     BetaStar = cms.double(55.0),
00097     Emittance = cms.double(5.03e-08),
00098     Alpha = cms.double(0.0),
00099     SigmaZ = cms.double(5.3),
00100     TimeOffset = cms.double(0.0),
00101     Y0 = cms.double(0.025),
00102     X0 = cms.double(0.05),
00103     Z0 = cms.double(0.0)
00104 )
00105 NominalCollision2VtxSmearingParameters = cms.PSet(
00106     Phi = cms.double(0.000142),
00107     BetaStar = cms.double(55.0),
00108     Emittance = cms.double(5.03e-08),
00109     Alpha = cms.double(0.0),
00110     SigmaZ = cms.double(5.3),
00111     TimeOffset = cms.double(0.0),
00112     Y0 = cms.double(0.025),
00113     X0 = cms.double(0.05),
00114     Z0 = cms.double(0.0)
00115 )
00116 NominalCollision3VtxSmearingParameters = cms.PSet(
00117     Phi = cms.double(0.0),
00118     BetaStar = cms.double(55.0),
00119     Emittance = cms.double(5.03e-08),
00120     Alpha = cms.double(0.0),
00121     SigmaZ = cms.double(5.3),
00122     TimeOffset = cms.double(0.0),
00123     Y0 = cms.double(0.025),
00124     X0 = cms.double(0.1),
00125     Z0 = cms.double(0.0)
00126 )
00127 NominalCollision4VtxSmearingParameters = cms.PSet(
00128     Phi = cms.double(0.0),
00129     BetaStar = cms.double(55.0),
00130     Emittance = cms.double(5.03e-08),
00131     Alpha = cms.double(0.0),
00132     SigmaZ = cms.double(5.3),
00133     TimeOffset = cms.double(0.0),
00134     Y0 = cms.double(0.025),
00135     X0 = cms.double(0.2),
00136     Z0 = cms.double(0.0)
00137 )
00138 
00139
VtxSmearedParameters_cfi.py
