Steered by this file {{{ model = Zprime alias pr = u:d:s:c:gl:U:D:S:C alias lepton = e1:E1 process zp_drell_yan = pr, pr => e1, E1 # Define model parameters mZH = 1500 GeV wZH = 50 GeV # Define reasonable cuts and integrate the cross section(s) # in order to initialize the phase space grids for similation cuts = all Pt >= 50 GeV [lepton] and all -2.5 <= Eta <= 2.5 [e1:E1] and all M >= 800 GeV [e1,E1] # Define the process scale scale = 1500 GeV # Beam specification and integration sqrts = 14 TeV beams = p,p => lhapdf integrate (zp_drell_yan) { iterations = 6:20000 } ?unweighted = false # Define title etc. as global variables, that will be used by PLOT $description = "A WHIZARD 2.0 Example. Cuts: $p_T^\ell\ge50 \textrm{ GeV}$, $M_{\ell\ell} \ge$800 GeV, $|\eta(\ell)|\le2.5$ \newline Using weighted events to produce smooth distributions." $ylabel = "$N_{\textrm{events}}$" # Allocate plots $title = "$Z'$ Drell-Yan dilepton peak $pp\to \ell\ell$" $xlabel = "$\theta^{\ell}$/GeV" histogram m_lepton (1 TeV, 2 TeV, 50 GeV) $title = "$Z'$ Drell-Yan: $p_T$ distribution of the $\ell$" $xlabel = "$p_T^{\ell}$/GeV" histogram pt_lepton (100 GeV, 2000 GeV, 100 GeV) $title = "$Z'$ Drell-Yan: Angular distribution of the $\ell$" $xlabel = "$\theta^{\ell}$/rad" histogram th_lepton (0, 3.1415, 0.157) analysis = record m_lepton (eval M [e1,E1]) and record pt_lepton (eval Pt [e1]) and record th_lepton (eval Theta [e1]) n_events = 100000 simulate (zp_drell_yan) $analysis_filename = "Zprime" }}} WHIZARD will produce histograms in the [http://projects.hepforge.org/whizard/trac/attachment/wiki/ExampleZprime/Zprime.pdf PDF output] and as [http://projects.hepforge.org/whizard/trac/attachment/wiki/ExampleZprime/Zprime.dat data file]. The progress can be monitored on the terminal and in the [http://projects.hepforge.org/whizard/trac/attachment/wiki/ExampleZprime/whizard.log WHIZARD log file].