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version 1.93:
2009 Apr 15:
Clean-up of Makefiles and configure scripts
Reconfiguration of BSM model implementation
extended supersymmetric models
2008 Dec 23:
New model NMSSM (Felix Braam)
SLHA2 added
Bug in LHAPDF interface fixed
2008 Aug 16:
Bug fixed in K matrix implementation
Gravitino option in the MSSM added
2008 Mar 20:
Improved color and flavor sums
version 1.92:
2007 Mar 12:
LHEF (Les Houches Event File) format added
Fortran 2003 command-line interface (if supported by the compiler)
Automated interface to colored models
More bug fixes and workarounds for compiler compatibility
version 1.91
2007 Mar 06:
New model K-matrix (resonances and anom. couplings in WW scattering)
EWA spectrum
Energy-scan pseudo spectrum
Preliminary parton shower module (only from final-state quarks)
Cleanup and improvements of configure process
Improvements for O'Mega parameter files
Quadruple precision works again
More plotting options: lines, symbols, errors
Documentation with PDF bookmarks enabled
Various bug fixes
2007 Nov 29:
New model UED
version 1.90
2007 Nov 23:
O'Mega now part of the WHIZARD tree
Madgraph/CompHEP disabled by default (but still usable)
Support for LHAPDF (preliminary)
Added new models: SMZprime, SM_km, Template
Improved compiler recognition and compatibility
Minor bug fixes
version 1.51
2006 Jun 15:
Support for anomaly-type Higgs couplings (to gluon and photon/Z)
Support for spin 3/2 and spin 2
New models: Little Higgs (4 versions), toy models for extra dimensions
and gravitinos
Fixes to the whizard.nw source documentation to run through LaTeX
Intel 9.0 bug workaround (deallocation of some arrays)
version 1.50
2006 Feb 07:
To avoid confusion: Mention outdated manual example in BUGS file
2006 Feb 02: [bug fix update]
Bug fix: spurious error when writing event files for weighted events
Bug fix: 'r' option for omega produced garbage for some particle names
Workaround for ifort90 bug (crash when compiling whizard_event)
Workaround for ifort90 bug (crash when compiling hepevt_common)
2006 Jan 27
Added process definition files for MSSM 2->2 processes
Included beam recoil for EPA (T.Barklow)
Updated STDHEP byte counts (for STDHEP 5.04.02)
Fixed STDHEP compatibility (avoid linking of incomplete .so libs)
Fixed issue with comphep requiring Xlibs on Opteron
Fixed issue with ifort 8.x on Opteron (compiling 'signal' interface)
Fixed color-flow code: was broken for omega with option 'c' and 'w'
Workaround hacks for g95 compatibility
version 1.43
2005 Oct 25
Minor fixes in MSSM couplings (Higgs/3rd gen squarks).
This should be final, since the MSSM results agree now completely
with Madgraph and Sherpa
User-defined lower and upper limits for split event file count
Allow for counters (events, bytes) exceeding $2^{31}$
Revised checksum treatment and implementation (now MD5)
Bug fix: missing process energy scale in raw event file
version 1.42
2005 Sep 30
Graphical display of integration history ('make history')
Allow for switching off signals even if supported (configure option)
2005 Sep 29
Revised phase space generation code, in particular for flavor sums
Negative cut and histogram codes use initial beams instead of
initial parton momenta. This allows for computing, e.g., E_miss
Support constant-width and zero-width options for O'Mega
Width options now denoted by w:X (X=f,c,z). f option obsolescent
Bug fix: colorized code: flipped indices could screw up result
Bug fix: O'Mega with 'c' and 'w:f' option together (still some problem)
Bug fix: dvips on systems where dvips defaults to lpr
Bug fix: integer overflow if too many events are requested
2005 Jul 29
Allow for 2 -> 1 processes (if structure functions are on)
2005 Jul 26
Fixed and expanded the 'test' matrix element:
Unit matrix element with option 'u' / default: normalized phase space
version 1.41
2005 Jul 15
Bug fix: no result for particle decay processes with width=0
Bug fix: line breaks in O'Mega files with color decomposition
2005 Jun 02
New self-tests (make test-QED / test-QCD / test-SM)
check lists of 2->2 processes
Bug fix: HELAS calling convention for wwwwxx and jwwwxx (4W-Vertex)
2005 May 25
Revised Makefile structure
Eliminated obsolete references to ISAJET/SUSY (superseded by SLHA)
2005 May 19
Support for color in O'Mega (using color flow decomposition)
New model QCD
Parameter file changes that correspond to replaced SM module in O'Mega
Bug fixes in MSSM (O'Mega) parameter file
2005 May 18
New event file formats, useful for LHC applications:
ATHENA and Les Houches Accord (external fragmentation)
Naive (i.e., leading 1/N) color factor now implemented both for
incoming and outgoing partons
2005 Jan 26
include missing HELAS files for bundle
pgf90 compatibility issues [note: still internal error in pgf90]
version 1.40
2004 Dec 13
compatibility fix: preprocessor marks in helas code now commented out
minor bug fix: format string in madgraph source
2004 Dec 03
support for arbitray beam energies and directions
allow for pT kick in structure functions
bug fix: rounding error could result in zero cross section
(compiler-dependent)
2004 Oct 07
simulate decay processes
list fraction (of total width/cross section) instead of efficiency
in process summary
new cut/analysis parameters AA, AAD, CTA: absolute polar angle
2004 Oct 04
Replaced Madgraph I by Madgraph II. Main improvement: model no
longer hardcoded
introduced parameter reset_seed_each_process (useful for debugging)
bug fix: color initialization for some processes was undefined
2004 Sep 21
don't compile unix_args module if it is not required
version 1.30
2004 Sep 20
g95 compatibility issues resolved
some (irrelevant) memory leaks closed
removed obsolete warning in circe1
manual update (essentially) finished
2004 Jul 26
minor fixes and improvements in make process
2004 Jun 29
workarounds for new Intel compiler bugs ...
no rebuild of madgraph/comphep executables after 'make clean'
bug fix in phase space routine:
wrong energy for massive initial particles
bug fix in (new) model interface: name checks for antiparticles
pre-run checks for comphep improved
ww-strong model file extended
Model files particle name fixes, chep SM vertices included
2004 May 05
Fixed bug in PDFLIB interface: p+pbar was initialized as p+p (ThO)
NAG compiler: set number of continuation lines to 200 as default
Extended format for cross section summary; appears now in whizard.out
Fixed 'bundle' feature
2004 Apr 28
Fixed compatibility with revised O'Mega SM_ac model
Fixed problem with x=0 or x=1 when calling PDFLIB (ThO)
Fixed bug in comphep module: Vtb was overlooked
version 1.28
2004 Apr 15
Fixed bug: Color factor was missing for O'Mega processes with
four quarks and more
Manual partially updated
2004 Apr 08
Support for grid files in binary format
New default value show_histories=F (reduce output file size)
Revised phase space switches: removed annihilation_lines,
removed s_channel_resonance, changed meaning of
extra_off_shell_lines, added show_deleted_channels
Bug fixed which lead to omission of some phase space channels
Color flow guessed only if requested by guess_color_flow
2004 Mar 10
New model interface: Only one model name specified in whizard.prc
All model-dependent files reside in conf/models (modellib removed)
2004 Mar 03
Support for input/output in SUSY Les Houches Accord format
Split event files if requested
Support for overall time limit
Support for CIRCE and CIRCE2 generator mode
Support for reading beam events from file
2004 Feb 05
Fixed compiler problems with Intel Fortran 7.1 and 8.0
Support for catching signals
version 1.27
2003 Aug 06
User-defined PDF libraries as an alternative to the standard PDFLIB
2003 Jul 23
Revised phase space module: improved mappings for massless particles,
equivalences of phase space channels are exploited
Improved mapping for PDF (hadron colliders)
Madgraph module: increased max number of color flows from 250 to 1000
version 1.26
2003 Jun 23
CIRCE2 support
Fixed problem with 'TC' integer kind [Intel compiler complained]
2003 May 28
Support for drawing histograms of grids
Bug fixes for MSSM definitions
version 1.25
2003 May 22
Experimental MSSM support with ISAJET interface
Improved capabilities of generating/analyzing weighted events
Optional drawing phase space diagrams using FeynMF
version 1.24
2003 Jan 31
A few more fixes and workarounds (Intel and Lahey compiler)
2003 Jan 15
Fixes and workarounds needed for WHIZARD to run with Intel compiler
Command-line option interface for the Lahey compiler
Bug fix: problem with reading whizard.phs
version 1.23
2002 Dec 10
Command-line options (on some systems)
Allow for initial particles in the event record, ordered:
[beams, initials] - [remnants] - outgoing partons
Support for PYTHIA 6.2: Les Houches external process interface
String pythia_parameters can be up to 1000 characters long
Select color flow states in (internal) analysis
Bug fix in color flow content of raw event files
Support for transversal polarization of fermion beams
Cut codes: PHI now for absolute azimuthal angle, DPHI for distance
'Test' matrix elements optionally respect polarization
User-defined code can be inserted for spectra, structure functions
and fragmentation
Time limits can be specified for adaptation and simulation
User-defined file names and file directory
Initial weights in input file no longer supported
Bug fix in MadGraph (wave function counter could overflow)
Bug fix: Gamelan (graphical analysis) was not built if noweb absent
version 1.22
2002 Apr 16
Allow for beam remnants in the event record
2002 Mar 01
Handling of aliases in whizard.prc fixed (aliases are whole tokens)
2002 Feb 28
Optimized phase space handling routines
(total execution time reduced by 20-60%, depending on process)
version 1.21
2002 Feb 26
Fixed ISR formula (ISR was underestimated in previous versions).
New version includes ISR in leading-log approximation up to
third order. Parameter ISR_sqrts renamed to ISR_scale.
version 1.20
2002 Feb 19
New process-generating method 'test' (dummy matrix element)
Compatibility with autoconf 2.50 and current O'Mega version
2002 Feb 05
Prevent integration channels from being dropped (optionally)
New internal mapping for structure functions improves performance
Old whizard.phx file deleted after recompiling (could cause trouble)
2002 Jan 24
Support for user-defined cuts and matrix element reweighting
STDHEP output now written by write_events_format=20 (was 3)
2002 Jan 16
Improved structure function handling; small changes in user interface:
new parameter structured_beams in &process_input
parameter fixed_energy in &beam_input removed
Support for multiple initial states
Eta-phi (cone) cut possible (hadron collider applications)
Fixed bug: Whizard library was not always recompiled when necessary
Fixed bug: Default cuts were insufficient in some cases
Fixed bug: Unusable phase space mappings generated in some cases
2001 Dec 06
Reorganized document source
version 1.14
2001 Dec 05
Preliminary CIRCE2 support (no functionality yet)
2001 Nov 27
Intel compiler support (does not yet work because of compiler bugs)
New cut and analysis mode cos-theta* and related
Fixed circular jetset_interface dependency warning
Some broadcast routines removed (parallel support disabled anyway)
Minor shifts in cleanup targets (Makefiles)
Modified library search, check for pdflib8*
version 1.13
2001 Aug 06
Fixed bug: I/O unit number could be undefined when reading phase space
Fixed bug: Unitialized variable could cause segfault when
event generation was disabled
Fixed bug: Undefined subroutine in CIRCE replacement module
Enabled feature: TGCs in O'Mega (not yet CompHEP!) matrix elements
(CompHEP model sm-GF #5, O'Mega model SM_ac)
Fixed portability issue: Makefile did rely on PWD environment variable
Fixed portability issue: PYTHIA library search ambiguity resolved
2001 Aug 01
Default whizard.prc and whizard.in depend on activated modules
Fixed bug: TEX=latex was not properly enabled when making plots
2001 Jul 20
Fixed output settings in PERL script calls
Cache enabled in various configure checks
2001 Jul 13
Support for multiple processes in a single WHIZARD run. The
integrations are kept separate, but the generated events are mixed
The whizard.evx format has changed (incompatible), including now
the color flow information for PYTHIA fragmentation
Output files are now process-specific, except for the event file
Phase space file whizard.phs (if present) is used only as input,
program-generated phase space is now in whizard.phx
2001 Jul 10
Bug fix: Undefined parameters in parameters_SM_ac.f90 removed
2001 Jul 04
Bug fix: Compiler options for the case OMEGA is disabled
Small inconsistencies in whizard.out format fixed
2001 Jul 01
Workaround for missing PDFLIB dummy routines in PYTHIA library
2001 Jun 30
Default path /cern/pro/lib in configure script
version 1.12
2001 Jun 20
New fragmentation option: Interface for PYTHIA with full color flow
information, beam remnants etc.
2001 Jun 18
Severe bug fixed in madgraph interface: 3-gluon coupling was missing
Enabled color flow information in madgraph
2001 Jun 11
VAMP interface module rewritten
Revised output format: Multiple VAMP iterations count as one WHIZARD
iteration in integration passes 1 and 3
Improved message and error handling
Bug fix in VAMP: handle exceptional cases in rebinning_weights
2001 May 31
new parameters for grid adaptation: accuracy_goal and efficiency_goal
2001 May 29
bug fixes (compilation problems): deleted/modified unused functions
version 1.11
2001 May 16:
diagram selection improved and documented
2001 May 06:
allow for disabling packages during configuration
2001 May 03:
slight changes in whizard.out format; manual extended
version 1.10
2001 Apr 20:
fixed some configuration and compilation problems (PDFLIB etc.)
2001 Apr 18:
linked PDFLIB: support for quark/gluon structure functions
2001 Apr 05:
parameter interface written by PERL script
SM_ac model file: fixed error in continuation line
2001 Mar 27:
reorganized the modules as libraries
linked PYTHIA: support for parton fragmentation
version 1.00beta:
2000 Dec 14:
fixed some configuration problems (if noweb etc. are absent)
2000 Dec 01:
first public version

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