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Suppose that an event has IDRUPLH=14995 . The information about the generation of this event
can be found in the directory ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/ .
For example the log file is ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/whizard.log ,
the whizard input file is ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/whizard.in
and cross section information is in ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/whizard.n3n3n3n3ss_o.out
Electron/Positron Beam Properties: Beamstrahlung and LINAC Energy Spread
The following lines in whizard.in control the beamstrahlung simulationproperties of the colliding electron/positron beams:
USER_spectrum_on = T
USER_spectrum_mode = -2
The first line indicates that a user-supplied function is used to simulate beamstrahlungthe beams. A copy of this function can
be found in ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/whizard-src/user.f90
The absolute value of USER_spectrum_mode determines which beamstrahlung energy spectrum is used, with the sign +/- indicating
electron/positron beam, respectively. For the 500 fb -1 SM data sample this absolute value is always 2, and corresponds
to the Guinea-Pig beamstrahlung data contained in the directory ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/guinea-pig/ilc_0500_may05_run05_seed06/
This spectrum represents the default ILC design for Ecm=500 GeV circa August 2005, and includes both incoming LINAC
energy spread and beamstrahlung.
Final State Parton Showering and Fragmentation
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