Changes between Version 6 and Version 7 of HowToGenie

Timestamp:

Nov 15, 2016, 10:53:15 AM (8 years ago)

Author:

Patrick Stowell

Comment:

--

HowToGenie

@@ -44 +44 @@
 The PrepareGENIE app also needs write access to save the input flux and event rate predictions into the GHep event files themselves.
 
+= Using GENIE Inputs =
+Once GENIE inputs have been prepared they can be read into NUISANCE samples using the GENIE type when writing a card file
+{{{
+sample MiniBooNE_CCQE_XSec_1DQ2_nu  GENIE:/path/to/my/prepared/genie/file.root
+}}}
+
+= Using GENIE ReWeight =
+GHep input predictions can be reweighted using the GENIE reweight engine that NUISANCE was built against.
+GENIE parameters are handled in the same way other parameters are, having the option to be treated as free or fixed.
+
+''' Fixed +1 sigma axial mass reweight '''
+Fixed prediction with MaCCQE reweighted to +1 sigma.
+{{{
+genie_parameter  MaCCQE  1.0
+}}}
+
+''' Fixed +1 sigma axial mass reweight '''
+Fixed prediction with MaCCQE reweighted to +1 sigma.
+{{{
+genie_parameter  MaCCQE  1.0  -4.0  4.0  1.0  FIX
+}}}
+
+''' Free variation of the axial mass '''
+Tell NUISANCE the axial mass can be varied between -4.0 and 4.0 sigma with steps of +1.0 sigma, starting at +1.0 sigma. This is used in the nuismin and nuissyst apps.
+{{{
+genie_parameter  MaCCQE  1.0  -4.0  4.0  1.0  FREE
+}}}
+
+To see a list of dials look in '$GENIE/src/ReWeight/GSyst.h'.
 
 
 
 
+
+