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# History file for EvtGen | |||||
From version 2.0.0, | |||||
Tabc labels refer to [Maniphest tasks](https://phab.hepforge.org/maniphest/query/nkBRd9OhPCBN/), while | |||||
Dxyz labels refer to [Differential code reviews](https://phab.hepforge.org/differential/query/YDY8EgjNGd.e/) on HepForge: | |||||
https://phab.hepforge.org/Tabc | |||||
https://phab.hepforge.org/Dxyz | |||||
21st Aug 2020 John Back | |||||
* T109: Add EvtEtaLLPiPi model for eta' -> l l pi pi decays (l = e or mu), | |||||
- courtesy of Aleksei Luchinsky (LHCb). | |||||
29th Jun 2020 Michal Kreps | |||||
* T103: Add missing include in EvtGenBase/EvtMatrix.hh. | |||||
15th May 2020 Michal Kreps | |||||
* D28: Add EvtThreeBodyPhsp (rectangular Dalitz plot selection) and | |||||
EvtPhspDecaytimeCut (minimum decay time requirement) models. | |||||
* D27: Fix initialisation of constants in EvtBTo3hCP model. | |||||
=== | |||||
## R02-00-00 | |||||
24th Apr 2020 Michal Kreps | |||||
* Update particle properties file evt.pdl to 2019 version of RPP by PDG. | |||||
23rd Apr 2020 Tom Latham | |||||
* Apply copyright and licence notices to all relevant files. | |||||
17th Apr 2020 Tom Latham | |||||
* Add text of GNU GPLv3 in COPYING, add (preliminary) list of authors in | |||||
AUTHORS, and clean-up all source files, prior to applying copyright and | |||||
licence notices. | |||||
9th Apr 2020 Tom Latham | |||||
* Improve, and document use of, standalone installation script. | |||||
* Apply clang-format formatting to all C++ source files. | |||||
8th Apr 2020 Tom Latham | |||||
* One small modernisation change to EvtPhotosEngine to match that already | |||||
applied in EvtTauolaEngine. | |||||
8th Apr 2020 John Back | |||||
* Fixed NonReson amplitude and the 4-momentum boosts used for angles in | |||||
EvtLambdacPHH, | |||||
- courtesy of Elisabeth Niel (LHCb). | |||||
7th Apr 2020 Gerhard Raven, Tom Latham, Michal Kreps and John Back | |||||
* Incorporate C++ modernization changes from Gerhard Raven (LHCb). | |||||
- Merged modernize branch into master. | |||||
9th Mar 2020 John Back | |||||
* Add EvtAbsExternalGen::getDecayProb() to allow external generators to | |||||
return a probability that can be used in EvtDecayProb (default = 1). | |||||
6th Mar 2020 Andrii Verbytskyi and Tom Latham | |||||
* Implement HepMC3 support: EvtHepMCEvent, external engines & cmake files. | |||||
15th Nov 2019 John Back | |||||
* Added EvtPsi2JpsiPiPi model for psi2S -> J/psi pi+ pi- decays based on hep-ph/1507.07985, | |||||
- courtesy of Aleksei Luchinsky (LHCb). | |||||
21st August 2019 Michal Kreps | |||||
* Added the EvtDToKpienu decay model for D -> K pi e nu decays from BESIII, | |||||
- courtesy of Liaoyuan Dong. | |||||
16th July 2019 John Back | |||||
* Correct imaginary sign for EvtComplex /= (EvtComplex c) operator. | |||||
3rd July 2019 John Back | |||||
* Added the EvtLambdacPHH decay model for Lc -> p K pi decays with K*(890), | |||||
Delta++(1232) and Lambda(1520) resonances, based on the Fermilab E791 | |||||
analysis hep-ex/9912003v1, | |||||
- courtesy of Elisabeth Niel and Patrick Robbe (LHCb). | |||||
* Modified EvtResonance2 to accept other barrier factor radii. | |||||
3rd July 2019 Michal Kreps | |||||
* Make sure minimum mass for resonances with non-zero widths is larger than | |||||
1e-4 GeV in EvtRelBreitWignerBarrierFact. | |||||
3rd May 2019 John Back | |||||
* Corrected EvtSLDiBaryonAmp bugs/issues in the BToDiBaryonlnupQCD model: | |||||
- parity, amplitude terms and B momentum reference frame variables. | |||||
* Corrected treament of spinor indices in EvtRareLb2Lll, | |||||
- courtesy of Tom Blake and Michal Kreps (LHCb). | |||||
* Updated the EvtBcVHad model to also handle Bc -> psi Ks K decays, | |||||
- courtesy of Aleksei Luchinsky (LHCb). | |||||
* Add new decay model EvtBsMuMuKK (BS_MUMUKK) for Bs to J/psi (mu+mu-) K+K-, | |||||
- courtesy of Veronika Chobanova, Jeremy Dalseno, Diego Martinez Santos and | |||||
Marcos Romero Lamas (LHCb). | |||||
* Fix infinite loop during initialisation of the EvtBTo3hCP model via | |||||
EvtCBTo3piP00 and EvtCBTo3piMPP, | |||||
- courtesy of Peter Richardson (Durham). | |||||
15th March 2019 Tom Latham | |||||
* Implement cmake build system, replacing the old config method. | |||||
30th Jan 2019 John Back | |||||
* Fix modernization compiler errors and warnings. | |||||
29th Jan 2019 Michal Kreps | |||||
* Allow reading decay files which are missing end-of-line before end-of-file. | |||||
21st December 2018 John Back | |||||
* Imported C++ modernization changes from Gerhard Raven (LHCb). | |||||
7th December 2018 John Back | |||||
* Added the EvtBLLNuL (BLLNUL) model that generates rare B -> ell ell nu ell | |||||
decays, where ell = e or mu, | |||||
- courtesy of Anna Danilina and Nikolai Nikitin (LHCb). | |||||
* Removed the EvtB2MuMuMuNu (BUTOMMMN) model, since its now replaced | |||||
by the more general BLLNuL one. | |||||
5th November 2018 John Back | |||||
* Added the BToDiBaryonlnupQCD model for generating B to p N* l nu decays, | |||||
where N can be any (exited) charged baryon (spin 1/2 or 3/2), | |||||
- courtesy of Mark Smith and Ryan Newcombe (LHCb), with added code optimisations. | |||||
17th October 2018 John Back | |||||
* Added various decay models from LHCb EvtGenExtras package: | |||||
- EvtBcVHad ("BC_VHAD"), | |||||
- Evtbs2llGammaMNT ("BSTOGLLMNT"), | |||||
- Evtbs2llGammaISRFSR ("BSTOGLLISRFSR"), | |||||
- EvtbTosllMS ("BTOSLLMS"), | |||||
- EvtbTosllMSExt ("BTOSLLMSEXT"), | |||||
- EvtLb2Baryonlnu ("Lb2Baryonlnu"), | |||||
- EvtLb2plnuLCSR ("Lb2plnuLCSR"), | |||||
- EvtLb2plnuLQCD ("Lb2plnuLQCD"), | |||||
- EvtFlatSqDalitz ("FLATSQDALITZ"), | |||||
- EvtPhspFlatLifetime ("PHSPFLATLIFETIME"). | |||||
5th October 2018 John Back | |||||
* Updated setupEvtGen.sh to work with the new HepForge Phabricator site. | |||||
13th March 2018 John Back | |||||
* Updated EvtPythiaEngine to correctly handle updates of various particle | |||||
properties so that Pythia uses the same information as EvtGen (evt.pdl) | |||||
for the generic and alias PYTHIA decay model. | |||||
12th March 2018 John Back | |||||
* Updated EvtBcXMuNu models (X = Scalar, Vector, Tensor) to generate | |||||
Bc to D0(star) mu nu decays, with associated form factors in EvtBCXFF, | |||||
- courtesy of Aleksei Luchinsky (LHCb). | |||||
* Also generalised the calculation | |||||
of their maximum probabilities by reusing the CalcMaxProb method in | |||||
EvtSemiLeptonicAmp, which now allows for different Q^2 binning | |||||
(default remains at 25 bins). | |||||
=== | |||||
## R01-07-00 | |||||
13th December 2017 John Back | |||||
* New tag incorporating all changes below. | |||||
* Recommended external packages are | |||||
(as used in the setupEvtGen.sh script): | |||||
- HepMC 2.06.09, | |||||
- pythia 8.230, | |||||
- Photos++ 3.61 | |||||
- Tauola++ 1.1.6c. | |||||
12th December 2017 John Back | |||||
* Changed Pythia validation example decay files to use Pythia8 codes. | |||||
6th December 2017 John Back | |||||
* Modified the examples to use DECAY.DEC (see 25th April 2016) instead of | |||||
DECAY_2010.DEC. Changed EvtExternalGenList to assume Pythia8 codes are | |||||
used in decay files by default, which is the case for DECAY.DEC. Also | |||||
updated the setupEvtGen.sh script to work with Pythia 8.2x versions. | |||||
29th November 2017 John Back | |||||
* Modified EvtSVP, EvtVVP and EvtTVP models to handle both radiative and | |||||
two-lepton decays, | |||||
- courtesy of Aleksei Luchinsky (LHCb). | |||||
14th July 2017 John Back | |||||
* Only create external generator objects if they don't already exist in | |||||
EvtExternalGenFactory. | |||||
* Modified configure script to work with Pythia 8.2x | |||||
5th July 2017 Michal Kreps | |||||
* Register the VTOSLL model. | |||||
14th June 2017 John Back | |||||
* Add isNeutralKaon() boolean function and corrected comments in EvtDDalitz. | |||||
8th May 2017 Michal Kreps | |||||
* Fix bug in EvtbTosllVectorAmp to recognise Bs --> K*bar mu mu decay as | |||||
b --> d ll transition. | |||||
8th May 2017 Michal Kreps | |||||
* Significantly simplify way how we decide on decay mode and daughters | |||||
ordering in DDalitz model. | |||||
- With new code by definition all orderings of | |||||
daughters in the decay file will yield same output. | |||||
4th May 2017 John Back | |||||
* Further fixes to DDalitz particle ordering (including charge-conjugates): | |||||
- Mode 5: D0 -> K- K0bar K+ and K+ K- K0bar | |||||
- Mode 12: D0 -> pi0 pi- pi+ and pi+ pi0 pi- | |||||
- Removed unneeded index ordering checks for mode 10 (D+ -> pi- pi+ pi+) | |||||
and mode 11 (Ds+ -> pi- pi+ pi+) | |||||
27th April 2017 John Back | |||||
* Fixed DDalitz particle ordering for mode 7: D+ -> pi+ K- K+ and K+ pi+ K- | |||||
and their charge-conjugates | |||||
7th April 2017 John Back | |||||
* Modified EvtGenExternal/EvtPythiaEngine to ensure that the EvtGen-based | |||||
instances of Pythia8 (for generic and alias decays) use the same | |||||
particle properties as defined by EvtGen, | |||||
- courtesy Patrick Robbe (LHCb). | |||||
5th April 2017 Michal Kreps | |||||
* Fixed indexing in copy constructor of Evt3Rank3C, which would otherwise | |||||
produce an infinite loop; | |||||
- bug report from David Grellscheid. | |||||
3rd November 2016 John Back | |||||
* Modified EvtFlatQ2 model to work for all B -> X lepton lepton modes, as | |||||
well as adding an extra phase space factor to correct for the dip at low | |||||
q^2, which is enabled by using "FLATQ2 1" instead of just "FLATQ2" in the decay file, | |||||
- courtesy of Marcin Chrzaszcz & Thomas Blake (LHCb). | |||||
13th October 2016 John Back | |||||
* Added the TauolaCurrentOption decfile keyword to select the hadronic | |||||
current in Tauola; default is the BaBar-tuned current option (int = 1). | |||||
* EvtParticles can store double attributes using the functions | |||||
setAttributeDouble(name, double) and getAttributeDouble(name), which can | |||||
be useful for storing and retrieving amplitude weights, for example. | |||||
- The analogous EvtParticle integer attribute interface remains unchanged: | |||||
setAttribute(name, int) and getAttribute(name). | |||||
13th September 2016 John Back | |||||
* Modified EvtTauolaEngine to use internal Tauola spin matrices for | |||||
tau pair events by temporarily setting the PDG id of the mother as a | |||||
boson, keeping the same 4-momentum. | |||||
* The BaBar hadronic currents are now used by default. | |||||
* Also added the ability to change some Tauola parameters | |||||
using the "Define" keyword in decay files. | |||||
* Added an example decay file | |||||
illustrating the new features: validation/TauolaFiles/Btautau.dec | |||||
9th September 2016 Michal Kreps | |||||
* Reimplement code in EvtBTo3pi.F, EvtBTo3piMPP.F, EvtBTo3piP00.F and | |||||
EvtBToKpipi.F in C++ in order to remove dependence on Fortran compiler. | |||||
- With this, there is no internal Fortran code in EvtGen. | |||||
=== | |||||
## R01-06-00 | |||||
1st June 2016 John Back | |||||
* New tag incorporating all changes below. | |||||
* Recommended external packages are | |||||
- HepMC 2.06.09 | |||||
- pythia 8.186 | |||||
- Photos++ 3.61 | |||||
- Tauola++ 1.1.5 | |||||
28th April 2016 Michal Kreps | |||||
* For Ds+ --> 2pi+ pi- there was double counting of branching fraction | |||||
resulting in total branching fraction being 1.5 times larger than measured | |||||
one. | |||||
- Fix by revisiting submodes, which now fill total Ds --> 3pi. | |||||
25th April 2016 Michal Kreps | |||||
* Added DECAY.DEC/XML, which contain updated semileptonic charm and beauty | |||||
branching fractions using the 2014 PDG, tuned to minimize disagreements | |||||
between measurements and EvtGen for both inclusive and exclusive decays. | |||||
* Updated the evt.pdl particle properties file to the PDG 2014 edition. | |||||
* Implemented new LQCD form factors for Lb --> L mu mu from arXiv paper | |||||
1602.01399 (EvtRareLbToLllFFlQCD); old LQCD form factors are removed. | |||||
18th March 2016 John Back | |||||
* Fixed incorrect spinor algebra used in S1 -> 1/2 S2, 1/2 -> S3 S4 decays | |||||
in EvtDiracParticle::rotateToHelicityBasis() functions, | |||||
- courtesy of Luis Miguel Garcia Martin and the IFIC Valencia LHCb group. | |||||
19th Feburary 2016 John Back | |||||
* Fixed bug in the definition of the initial spinor term Sinit in | |||||
EvtRareLbToLll::HadronicAmpRS(), | |||||
- from Tom Blake (LHCb). | |||||
12th February 2016 John Back | |||||
* From LHCb, added extensions to the EvtHQET2(FF) model for semitauonic | |||||
decays from Brian Hamilton, which needs a patch to EvtSemiLeptonicAmp | |||||
from Jack Wimberley to ensure that the q^2 range is physical when | |||||
finding the maximum amplitude probability. | |||||
2nd December 2015 John Back | |||||
* From LHCb, added EvtKStopizmumu model for KS -> pi0 mu mu decays based on | |||||
JHEP08(1998)004, | |||||
- courtesy of Veronika Chobanova, Diego Martinez Santos and Jeremy Dalseno. | |||||
* Added EvtConst::Fermi for Fermi coupling constant. | |||||
=== | |||||
## R01-05-00 | |||||
21st October 2015 John Back | |||||
* New tag incorporating all changes below. | |||||
* Recommended external packages are | |||||
- HepMC 2.06.09 | |||||
- pythia 8.186 | |||||
- Photos++ 3.61 | |||||
- Tauola++ 1.1.5 | |||||
* Added the EvtB2MuMuMuNu model for simulating the very rare four-leptonic | |||||
decays B- -> mu+ mu- anti-nu_mu mu-, | |||||
- courtesy Nikolai Nikitin. | |||||
16th October 2015 John Back | |||||
* Updated the configure script to automatically select the library names | |||||
for PHOTOS++; version 3.56 and below uses Fortran, version 3.61 and above | |||||
uses C++ only (default). Avoid using v3.60, since it does not work. | |||||
This needs the PHOTOS libraries built before EvtGen is configured. | |||||
Modified setupEvtGen.sh to use Photos++ v3.61. | |||||
7th October 2015 John Back | |||||
* Updated EvtGenExternal/EvtPhotosEngine to check that additional particles | |||||
from the outgoing vertex are indeed (FSR) photons, since later versions of | |||||
PHOTOS introduce pair emission, where particles may not always be photons. | |||||
* Added the genRootDecayChain.cc validation program to create ROOT files | |||||
containing information about the complete decay tree. Two example test | |||||
decay files BKstarGamma.dec and BuDst0rhop.dec can be used with this; the | |||||
first tests PHOTOS, the second looks at sequential decay chain storage. | |||||
The plotBKstarGamma.C ROOT macro can be used for B -> K* gamma plots. | |||||
2nd October 2015 John Back | |||||
* Modified EvtSVPHelAmp and added a new EvtSVPHelCPMix model, implementing | |||||
the complete mixing phenomenology of Bs to vector gamma decays, | |||||
- courtesy of Clara Remon (LHCb). | |||||
* EvtD0mixDalitz code: cleanup, inverted q/p for decays of D0bar (simplifies | |||||
user decay files) and fixed y parameter bug, | |||||
- courtesy of Jordi Tico (LHCb). | |||||
* Changed the initialisation order of the infrared cut-off in EvtPhotosEngine. | |||||
This actually has no effect, since the exponentiation function sets it to the | |||||
same 1e-7 value, but it is now in the correct order if we need to update it. | |||||
* Removed all remaining obsolete pragma (Win32) warnings from some classes. | |||||
23rd September 2015 Michal Kreps | |||||
* Reimplement the real Spence function in C++ and removed its fortran | |||||
implementation. | |||||
15th September 2015 Michal Kreps | |||||
* Fixed accessed uninitialised memory in EvtPDL.cpp, line 213. | |||||
* Modified the configure and setupEvtGen.sh scripts to work on Mac; needed | |||||
Mac compilation patch files added to the new "platform" subdirectory. | |||||
10th September 2015 John Back | |||||
* Updated setupEvtGen.sh to use the recommended external packages: | |||||
- HepMC 2.06.09, pythia 8.186, Photos++ 3.56 and Tauola++ 1.1.5. | |||||
* Fixed form-factor calculations for the BTOSLLBALL model 6 used to generate | |||||
b -> sll decays, | |||||
- courtesy of Christoph Langenbruch and David Loh (LHCb). | |||||
- Affects B->K*ll, B->rholl and B->omegall, particularly the electron modes. | |||||
* In the validation directory, added runPhotosTest.sh for testing FSR in | |||||
Upsilon(4S) -> e+ e- decays, and changed the plot comparison scripts to | |||||
use the 2nd directory "oldRootFiles" (which could be a soft-link) for | |||||
including ROOT histograms made from a previous version of EvtGen. | |||||
27th August 2015 John Back | |||||
* Added Mersenne-Twister random number generator (RNG) EvtMTRandomEngine. | |||||
- It requires c++11 compiler features (>= gcc 4.7), which should | |||||
automatically be enabled by the configure script. | |||||
- Introduced the preprocessor environment variable EVTGEN_CPP11 for c++11 | |||||
features. | |||||
- EvtMTRandomEngine is the default RNG for the validation and test examples | |||||
if c++11 features are enabled. | |||||
* Added a phase-space test validation/genPHSP.sh and PhaseSpacePlots.C to | |||||
visually check the flatness of Dalitz plots in order to ensure that the | |||||
RNG is not producing biased results that depend on particle ordering. | |||||
* Added the models EvtbsToLLLLAmp and EvtbsToLLLLHyperCP for | |||||
B0_q -> l+ l- l+ l- decays (SM and one supersymmetric scenario), | |||||
- courtesy of Nikolai Nikitin and Konstantin Toms. | |||||
- Documentation provided in doc/evt_BQTOLLLL_model.pdf and | |||||
doc/evt_BQTOLLLLHYPERCP_model.pdf. | |||||
* Changed the installation and set-up script name to be just setupEvtGen.sh; | |||||
it uses the VERSION variable to specify the required tag. List of tags | |||||
are available using either "svn ls -v http://svn.cern.ch/guest/evtgen/tags" | |||||
or by going to http://svn.cern.ch/guest/evtgen/tags in a web browser. | |||||
12th June 2015 John Back | |||||
* Changed the width of chi_b1 in evt.pdl from 9.8928 GeV (!) to zero. | |||||
1st May 2015 John Back | |||||
* Added Bc -> scalar ell nu (EvtBcSMuNu) and Bc -> tensor ell nu | |||||
(EvtBcTMuNu) decays, | |||||
- courtesy of Jack Wimberley, LHCb. | |||||
- Also included the chi_c1 mode for EvtBcVMuNu. | |||||
=== | |||||
## R01-04-00 | |||||
2nd April 2015 John Back | |||||
* Removed the EvtStdlibRandomEngine class since this can produce biases | |||||
to kinematic distributions when one or more of the daughters is a | |||||
resonance, such as B0 -> K pi psi | |||||
- (thanks to Antonio Augusto Alves Jr who discovered this issue). | |||||
- EvtSimpleRandomEngine is now the default random number generator in the | |||||
validation and test examples. | |||||
* Incorporated several additions and modifications from LHCb: | |||||
a) From Michal Kreps, Tom Blake & Christoph Langenbruch, | |||||
added rare Lb --> Lambda^(*) ell ell models described in | |||||
arXiv:1108.6129, with various form factors from Gutsche et al. | |||||
(arXiv:1301.3737) and lattice QCD (arXiv:1212.4827) | |||||
b) From Andrew Crocombe, implemented Bs --> K* form factors | |||||
from Ball-Zwicky and z-parametrization form factors from | |||||
arXiv:1006.4945 for EvtbTosllBallFF | |||||
c) Christoph Langenbruch fixed the Bs -> phi ll form factors in | |||||
EvtbTosllBallFF; T3 showed a non-physical pole at very low | |||||
q2 which significantly affected the electron mode | |||||
d) From Michal Kreps, removed semicolons from wrong places to | |||||
clear warnings when compiled with the "-pedantic" option. | |||||
9th October 2014 John Back | |||||
* Change svnweb.cern.ch to svn.cern.ch in the setup script. | |||||
1st April 2014 John Back | |||||
* In EvtReport, modified the logging output severity status flags | |||||
to have the "EVTGEN_" prefix, e.g. INFO becomes EVTGEN_INFO. | |||||
* The global report() function has been renamed to EvtGenReport(). | |||||
31st March 2014 John Back | |||||
* Added the ability to store named attributes for EvtParticles in the | |||||
form of a map<string, int>. The setAttribute(name, value) stores the | |||||
required value, while getAttribute(name) retrieves the integer value. | |||||
This is used in EvtPhotosEngine to specify the final-state radiation | |||||
"FSR" attribute to 1 for any additional photons (EvtPhotonParticles) | |||||
created by Photos++. It also stores the "ISR" attribute, but this | |||||
is always set to zero, since only FSR photons are created. | |||||
If the named attribute does not exist, then getAttribute() returns zero. | |||||
29th January 2014 Daniel Craik | |||||
* Removed mass assertion on GS shape in EvtDalitzReso to allow it to also | |||||
be used for charged rho resonances. | |||||
27th January 2014 John Back | |||||
* Minor corrections to Vub models to remove further gcc 4.8 warnings. | |||||
* Updated configure script to work for MacOS clang (from Genser team). | |||||
=== | |||||
## R01-03-00 | |||||
9th January 2014 John Back | |||||
* New tag version "1.3.0", incorporating all changes below. | |||||
* Replaced auto-install script to work with this version as well as | |||||
the latest versions of all external generator packages. | |||||
* Updated README to mention the new CERN-based web pages for Photos++ | |||||
and Tauola++. | |||||
8th January 2014 John Back | |||||
* Fix gcc 4.6 and 4.8 compilation warnings, | |||||
- courtesy of Patrick Robbe (LHCb); | |||||
- main changes are removal of unused variables. | |||||
* Changed the EvtPythiaEngine class and configure script to use new | |||||
Pythia 8 header locations; Pythia 8.180 or above is now required. | |||||
7th January 2014 John Back | |||||
* Modified EvtBCVFF to correct the Kiselev form factors | |||||
- from Jack Wimberley (LHCb). | |||||
9th October 2013 Daniel Craik | |||||
* Added Gounaris-Sakurai and Gaussian shapes to EvtGenericDalitz | |||||
and set sensible defaults for LASS parameters. | |||||
19th September 2013 John Back | |||||
* Modified EvtGenExternal/EvtPythiaEngine to keep track of any new | |||||
particles that are added to the default Pythia database to avoid | |||||
duplicating particle/anti-particle entries that could override | |||||
previously defined Pythia decay chains. | |||||
18th September 2013 John Back | |||||
* Added Mac OS flags for the configure script and src/Makefile. | |||||
15th July 2013 Daniel Craik | |||||
* Added flag to turn on scaling of LASS amplitude by M/q in EvtDalitzReso | |||||
15th July 2013 Daniel Craik | |||||
* EvtParserXML now accepts file names containing environment variables, | |||||
exponential non-resonant shape in EvtDalitzReso now defined as exp(-alpha*m^2), | |||||
LASS shape in EvtDalitzReso now takes a cutoff parameter | |||||
4th July 2013 Daniel Craik | |||||
* Added LASS, exponential non-resonant and linear non-resonant shapes to EvtGenericDalitz. | |||||
3rd July 2013 Daniel Craik | |||||
* Fixed auto-install script for R01-02-00. | |||||
1st July 2013 Daniel Craik | |||||
* Added auto-install script for R01-02-00. | |||||
=== | |||||
## R01-02-00 | |||||
15th May 2013 John Back | |||||
* New tag, version "1.2.0", incorporating all changes below. | |||||
14th May 2013 Michal Kreps | |||||
* Added Blatt-Weisskopf barrier factors up to L=5 in | |||||
EvtGenBase/EvtBlattWeisskopf::compute(). | |||||
14th May 2013 John Back | |||||
* Added additional entries (appended at the end) to the evt.pdl particle | |||||
data file | |||||
- courtesy of Romulus Godang and Belle II colleagues. | |||||
14th March 2013 John Back | |||||
* Added the method EvtParticle::getPDGId() to get the PDG integer for a | |||||
particle directly (which just calls EvtPDL::getStdHep()). | |||||
* Added a check in EvtPhotosEngine::doDecay to skip Photos if a given | |||||
particle has too many daughters (>= 10) to avoid a problem with a | |||||
hard coded upper limit in the Photos PHOENE subroutine. | |||||
2nd February 2013 Daniel Craik | |||||
* Updated EvtDalitzTable to estimate probMax when it is missing from a | |||||
Dalitz model. | |||||
1st February 2013 John Back | |||||
* Added the ability to read in Pythia 6 commands in ascii decay files in | |||||
EvtDecayTable::readDecayFile (this was already possible in xml files). | |||||
* Modified the Photos++ engine default settings to be more suited to B | |||||
decays (from LHCb defaults). | |||||
31st January 2013 John Back | |||||
* Added the ability to read in Pythia 8 commands in ascii decay files | |||||
in EvtDecayTable::readDecayFile. They can be set using the syntax: | |||||
"PythiaTypeParam module:variable=value", where Type = Generic, Alias or | |||||
Both for specifying whether the parameter is for the generic or alias | |||||
Pythia decay engines (or both). The 2nd argument must not contain any | |||||
spaces. Fixed the list of commands strings being used in the | |||||
EvtPythiaEngine class (i.e. Pythia parameters that can be set via decay | |||||
files). | |||||
31st January 2013 Daniel Craik | |||||
* Added named parameters to various decay models. | |||||
30th January 2013 John Back | |||||
* Fixed some of the parameter arguments used in the EvtSVSCPiso model. | |||||
24th January 2013 John Back | |||||
* Set the Photos++ and Tauola++ models to use the EvtGen random number | |||||
engine when useEvtGenRandom is set to true in the EvtExternalGenList | |||||
constructor. | |||||
23rd January 2013 John Back | |||||
* Added EvtGenExternal/EvtPythiaRandom to allow the use of the EvtGen | |||||
random number engine to also be used for the random engine for Pythia 8. | |||||
* Added a boolean (useEvtGenRandom, default = true) within the | |||||
EvtExternalGenList constructor to use this feature. | |||||
18th December 2012 John Back | |||||
* Corrected some wrong daughter ordering assignments for decay modes 5 and | |||||
12 in EvtDDalitz. Updated validation/DalitzDecays.xml to also contain | |||||
D decay mode 12, as well as various modes that may use K_S0 and K_L0. | |||||
* Added validation/genDDalitzModes.sh and updated validation/compareDalitz.C to | |||||
do a complete comparison of the D Dalitz modes with the xml versions. | |||||
11th December 2012 Daniel Craik | |||||
* Updated the Xml parser to support named model parameters. | |||||
* Updated the generic Dalitz model to use named model parameters as an example. | |||||
15th October 2012 John Back | |||||
* Make EvtSimpleRandomEngine inherit from EvtRandomEngine to avoid | |||||
crash in EvtGen.cpp when no random engine is defined | |||||
- (from Bjoern Spruck). | |||||
=== | |||||
## R01-01-00 | |||||
4th October 2012 John Back | |||||
* New tag, version "1.1.0", incorporating all changes below. | |||||
* Provide proper default constructors for EvtVector4R and | |||||
EvtPhotonParticle. Modified the validation and test code to also | |||||
compile/link in the case of no external generators being included. | |||||
3rd October 2012 John Back | |||||
* Corrected the t3 vector form factor values for the Ball-Zwicky 2005 | |||||
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. |