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! main86.cmnd.
! This file contains commands to be read in for a Pythia8 run. 
! Lines not beginning with a letter or digit are comments.

// Number of events generated
Main:numberOfEvents        = 1000

// Specify shower options
HadronLevel:all            = on
PartonLevel:MPI            = on

// Core process for merging
Merging:Process            = pp>LEPTONS,NEUTRINOS

// Maximal number of additional LO jets.
Merging:nJetMax            = 2

// Merging scale value.
Merging:TMS                = 15

// Switch off enforced rapidity ordering
SpaceShower:rapidityOrder  = off

// Since UMEPS is a tree-level merging method, both leading-order and 
// next-to-neading order PDFs are allowed. However, from parton shower 
// considerations, leading-order PDFs are preferred, since multiparton 
// interactions probe the incoming hadron at small momentum scales.  
// Example PDF files generated with CTEQ6M PDFs.
PDF:useLHAPDF              = on
PDF:LHAPDFset              = cteq6m.LHpdf
SpaceShower:alphaSvalue    = 0.118
TimeShower:alphaSvalue     = 0.118