Merge pull request #8 from vciulli/master

Pythia8 fragment for minbias with tuen A2MB-MSTW2008LO

python/ThirteenTeV/MinBias_13TeV_pythia8_cfi.py

@@ -0,0 +1,26 @@
+import FWCore.ParameterSet.Config as cms
+
+source = cms.Source("EmptySource")
+
+generator = cms.EDFilter("Pythia8GeneratorFilter",
+#    crossSection = cms.untracked.double(xxxx),      # to be determined with a test run
+   maxEventsToPrint = cms.untracked.int32(0),
+   pythiaPylistVerbosity = cms.untracked.int32(1),
+   filterEfficiency = cms.untracked.double(1.0),
+   pythiaHepMCVerbosity = cms.untracked.bool(False),
+   comEnergy = cms.double(13000.0),
+   PythiaParameters = cms.PSet(
+       processParameters = cms.vstring(
+	    'Main:timesAllowErrors    = 10000', 
+           'ParticleDecays:limitTau0 = on',
+	    'ParticleDecays:tauMax = 10',
+           'SoftQCD:minBias = on',           
+           'SoftQCD:singleDiffractive = on', 
+           'SoftQCD:doubleDiffractive = on', 
+           'Tune:pp 8',                      
+           'Tune:ee 3'),
+       parameterSets = cms.vstring('processParameters')
+   )
+)
+
+ProductionFilterSequence = cms.Sequence(generator)