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larsb-p GENIEReweight development#49

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larsb-p wants to merge 25 commits into
GENIE-MC:masterfrom
larsb-p:larsbp_update_to_GENIEv3_06_02
Open

larsb-p GENIEReweight development#49
larsb-p wants to merge 25 commits into
GENIE-MC:masterfrom
larsb-p:larsbp_update_to_GENIEv3_06_02

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@larsb-p

@larsb-p larsb-p commented Mar 17, 2026

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The GENIEReweight branch "larsbp_update_to_GENIEv3_06_02" contains novel 2p-2h systematic uncertainty parameters, implemented in GENIEReweight version 1.04.02 alongside GENIE version 3.06.02. The available dials are:

  • NormCCMEC
  • DecayAngMEC, DecayAng2MEC
  • DecayAngMECLegendre, DecayAngMECLegendre2, DecayAngMECLegendre3, DecayAngMECLegendre4, DecayAngMECLegendre5, DecayAngMECLegendre6
  • FracPN_CCMEC
  • FracDelta_CCMEC
  • XSecShape_CCMEC
  • XSecShape_CCMEC_Empirical
  • XSecShape_CCMEC_Martini
  • EnergyDependence_CCMEC

The input model is the CCMEC Valencia, SuSAv2 or Martini-Ericson-Chanfray-Marteau model.

sjgardiner and others added 18 commits November 29, 2022 15:22
… rw.AdoptWghtCalc( xsec_ccqe_elff, new GReWeightNuXSecCCQEELFF ); in grwgh1p (think about this more later)
…enabled actual reweighting to the 2p-2h Martini model by inputting MartiniEricsonChanfrayMarteauMECPXSec2024 into placeholder for XSecShape_CCMEC_Martini dial
…onsidering the 2p2h Martini model and added normalsation for DecayAngMEC parameter with two tweak dials
…cia model and the energy transfer cut-off in the Martini model
…ecShape_CCMEC and XSecShape_CCMEC_Martini dials
@nusense nusense self-requested a review March 17, 2026 18:21
@nusense

nusense commented Mar 17, 2026

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I'm going to hold on on reviewing this until the related GENIE-MC/Generator#478 and GENIE-MC/Generator#472 conflicts are resolved

larsb-p added 7 commits March 18, 2026 00:57
…Martini-Ericson_Chanfray-Marteau model is input as default
…ied instead of divided (input default model gets up- or down-reweighted according to renormalised cross section ratio being greater or smaller to 1.)
…ng hard-coded xsec ratio tables to it reading the xsecs directly from the user's input cross-section spline xml-file. The user can now input multiple xml-files via the cross-sections option of grwght1p.
…RwghtNCorrelatedParams.cxx (matches original implementation)
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3 participants