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LaTeX Intel 9.0 bug workaround (deallocation of some arrays) version 1.50 2006 Feb 07: To avoid confusion: Mention outdated manual example in BUGS file 2006 Feb 02: [bug fix update] Bug fix: spurious error when writing event files for weighted events Bug fix: 'r' option for omega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