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+//==========================================================================
+//
+// History file for EvtGen
+//
+//===========================================================================
+
+R01-01-00-------------------------------------------------------------------
+4th October 2012 John Back
+ New tag, version "1.1.0", incorporating all changes below.
+
+3rd October 2012 John Back
+ Corrected the t3 vector form factor values for the Ball-Zwicky '05
+ model (modelId = 6) in EvtbTosllBallFF::getVectorFF(), which
+ were set to t3tilde instead.
+
+18th September 2012 John Back
+ Moved the external generator engines to a new sub-directory
+ EvtGenExternal. Building the code now creates 2 libraries:
+ libEvtGen.so (Base+Models) and libEvtGenExternal.so.
+ This allows anyone to ignore using the new external generators
+ if required (by not creating/loading the 2nd library).
+
+ Added prefix option to the configure script/Makefile to allow the user
+ to specify an installation directory for the include files, libraries,
+ DECAY.DEC and evt.pdl files (for Genser).
+
+14th September 2012 Michal Kreps
+ Fixed the calculation of the angle between decay planes in the function
+ EvtKine::EvtDecayAngleChi. Fixed typo in EvtLb2Lll decay model. Only
+ some NP scenarious could be affected, SM one is definitely unaffected.
+
+13th September 2012 John Back
+ Added the use of the environment variables EVTGEN_PHOTOS, EVTGEN_PYTHIA
+ and EVTGEN_TAUOLA to specify if the Photos, Pythia and/or Tauola engine
+ classes are used or not. These variables are set by the configure script,
+ depending if the library paths are specified for these generators.
+
+R01-00-01--------------------------------------------------------------------
+12th September 2012 John Back
+ New tag incorporating all changes below, since R01-00-00.
+
+11th September 2012 John Back
+ Modified the Photos and Tauola engine classes to use the new
+ Photospp and Tauolapp namespaces that are present in the latest
+ versions of Photos++(3.5) and Tauola++(1.0.7). Updated the configure file
+ to get the correct location of the Tauola++ include files.
+
+ Added the D0->pi+pi-pi0 decay mode in EvtDDalitz from Marco Gersabeck
+ and Frederic Dreyer (LHCb).
+
+ Added new decay models/classes from Alexey Luchinsky (LHCb):
+ EvtBcVMuNu, EvtTVP, EvtWnPi, EvtSVP, EvtXPsiGamma, EvtBcVNpi
+
+29th June 2012 John Back
+ Corrected mass(squared) variables filled in the Dalitz TTree in
+ validation/genExampleRootFiles.
+
+15th May 2012 Daniel Craik
+ Updated EvtD0gammaDalitz to deal with D mesons from neutral B->DK
+ Added save function to validation/compareDalitz.C.
+
+11th May 2012 Daniel Craik
+ Replaced BaBar specific configuration for BlattWeisskopf birth factors.
+ Updated XML conversion script to handle new configuration.
+ Fixed some bugs in the XML conversion script related to particle
+ modifications.
+
+9th May 2012 Daniel Craik
+ Added latex documentation for xml decay files.
+
+2nd May 2012 Daniel Craik
+ Added resDaughters attribute to the Dalitz resonance xml tag to
+ simplify defining symmetric resonances. Updated validation xml files to
+ use the new functionality.
+
+27th April 2012 Daniel Craik
+ Upgraded EvtGenericDalitz to use EvtDalitzReso for resonances.
+ Added validation to compare EvtGenericDalitz to all 11 EvtDDalitz modes.
+ Added a root macro to quickly compare two Dalitz decays for validation.
+
+24th April 2012 John Back
+ Solved two bugs in the EvtD0gammaDalitz model (from Jordi Tico, LHCb):
+ configuration of the conjugated model, and using only the B charge
+ to determine the model used, not the D flavour.
+
+17th April 2012 Daniel Craik
+ Updated the GenericDalitz validation code to use the same probMax
+ values as DDalitz. Added XML decay file parsing to EvtGen::readUDecay.
+ Dec files are still the default.
+
+30th March 2012 John Back
+ Update maximum probability values in EvtDDalitz::initProbMax()
+ for all DDalitz modes.
+
+23rd March 2012 John Back
+ Added the EvtEta2MuMuGamma decay model from LHCb.
+
+21st March 2012 John Back
+ Added EvtD0gammaDalitz decay model from LHCb.
+
+20th March 2012 Daniel Craik
+ Added backwards compatibility for Pythia 6 commands in the XML
+ configuration. Updated decay file conversion tool to convert JetSetPar
+ lines to pythia6Param tags.
+
+19th March 2012 Daniel Craik
+ Added infrastructure to pass commands to external generators.
+ XML config now takes Pythia8 configuration commands.
+
+16th March 2012 Daniel Craik
+ Added the ability to define particles from the PDL for Dalitz decay
+ resonances instead of defining mass, width and spin seperately. Renamed
+ the lifetime attribute of Dalitz decay resonaces to width to avoid
+ confusion. Added further validation code for the generic Dalitz model.
+
+15th March 2012 Daniel Craik
+ Added validation code for xml decay files and the generic Dalitz model.
+
+R01-00-00 ------------------------------------------------------------------
+6th March 2012 John Back
+ First official version for Genser (evtgen 1.0.0) that includes
+ support for external generators: Pythia8, Photos++ and Tauola++.
+ This also includes a preliminary version of creating Dalitz plot
+ decay models using EvtGenericDalitz.

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