| Table of Contents |
|---|
2000 fb -1 SM Data Samples at Ecm= 250, 350, 500 & 1000 GeV
Introduction
...
Stdhep files for 2000 fb -1 Standard Model data samples at Ecm= 250 & 500 GeV have been produced and are currently located on SLAC mass storage. Some
Standard Model data samples at Ecm= 350 GeV have also been produced. A complete list of the processes can be found in
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC250/doc/integ_index_0250_01
...
,
...
ftp://ftp-lcd.slac.stanford.edu/ilc3/whizdata/ILC350/doc/integ_index_0350_SB2009_nTF_extbunches_01
...
,
...
and
...
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/doc/integ_index_0500_01
...
.
...
The
...
five
...
columns
...
are
...
process_id,
...
initial_state,
...
the
...
variable
...
IDRUPLH,
...
an
...
internal
...
sequence
...
number
...
(1
...
-
...
4)
...
and
...
a
...
bit
...
indicating
...
whether
...
or
...
not
...
events
...
were
...
produced
...
for
...
this
...
particular
...
initial
...
state
...
polarization
...
sign
...
combination
...
(0
...
=
...
events
...
generated,
...
1=
...
events
...
not
...
generated).
...
Subsets
...
of
...
these
...
events
...
are
...
available
...
via
...
ftp;
...
please
...
see
...
...
...
...
...
...
...
.
| Anchor | ||||
|---|---|---|---|---|
|
The events are produced assuming 100% polarization for the initial state electron and positron; different files for the same final state correspond to different polarization sign combinations. The variable IDRUPLH indexes the different final states and polarizations. Assume, for example, that a process has IDRUPLH=14995 . The stdhep file is ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/w14995_01.stdhep
...
and
...
the
...
information
...
about
...
the
...
generation
...
of
...
this
...
file
...
can
...
be
...
found
...
in
...
the
...
directory
...
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/doc/run_output/w14995/run_01/
...
.
...
The
...
log
...
file
...
is
...
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/doc/run_output/w14995/run_01/whizard.log
...
,
...
the
...
whizard
...
input
...
file
...
is
...
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/doc/run_output/w14995/run_01/whizard.in
...
and
...
cross
...
section
...
information
...
is
...
in
...
...
.
...
For
...
Ecm=
...
350
...
GeV,
...
the
...
event
...
generation
...
log
...
files
...
can
...
be
...
found
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc3/whizdata/ILC350/doc/run_output
...
.
...
The
...
...
...
...
version
...
1.40
...
is
...
used
...
for
...
parton
...
generation
...
for
...
all
...
processes
...
except
...
SUSY
...
processes.
...
WHIZARD
...
version
...
1.51
...
is
...
used
...
for
...
SUSY
...
processes.
...
For
...
processes
...
with
...
(without)
...
an
...
on-shell
...
Higgs
...
boson
...
in
...
the
...
final
...
state
...
the
...
Higgs
...
mass
...
is
...
assumed
...
to
...
be
...
120
...
GeV
...
(2000
...
GeV).
...
The
...
Makefile
...
and
...
build
...
log
...
files
...
for
...
this
...
implementation
...
of
...
WHIZARD
...
can
...
be
...
found
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/doc/whizard-v1r4p0
...
.
Electron/Positron
...
Beam
...
Properties:
...
Beamstrahlung
...
and
...
LINAC
...
Energy
...
Spread
...
The
...
following
...
lines
...
in
...
whizard.in
...
control
...
the
...
properties
...
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
...
the
...
beams.
...
A
...
copy
...
of
...
this
...
function
...
can
...
be
...
found
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc3/whizdata/whizard/v1r4p0/whizard-v1r4p0/whizard-src/user.f90
...
for
...
the
...
WHIZARD
...
1.40
...
version
...
and
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc3/whizdata/whizard/whizard-1.95/whizard-src/user.f90
...
for
...
the
...
WHIZARD
...
1.95
...
version.
...
This
...
function
...
refers
...
to
...
links
...
with
...
the
...
names
...
..._linker_000...
...
which
...
can
...
be
...
found
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc3/whizdata/whizard/guinea-pig/energy_spread
...
.
...
The
...
absolute
...
value
...
of
...
USER_spectrum_mode
...
determines
...
which
...
energy
...
spectrum
...
is
...
used,
...
with
...
the
...
sign
...
+/
...
-
...
indicating
...
electron/positron
...
beam,
...
respectively.
...
For
...
the
...
Ecm
...
=
...
500
...
GeV
...
SM
...
data
...
sample
...
this
...
absolute
...
value
...
is
...
always
...
2,
...
and
...
corresponds
...
to
...
the
...
Guinea-Pig
...
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.
...
For
...
the
...
Ecm
...
=
...
250
...
GeV
...
SM
...
data
...
sample
...
the
...
absolute
...
value
...
of
...
USER_spectrum_mode
...
is
...
4
...
for
...
the
...
LOI
...
samples
...
with
...
do_isr
...
=
...
T,
...
and
...
USER_spectrum_mode
...
is
...
5
...
for
...
the
...
post-LOI
...
samples
...
with
...
do_isr
...
=
...
F.
...
The
...
Guinea-Pig
...
data
...
for
...
USER_spectrum_mode=5
...
is
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc3/ILC250/LOI_backgrounds/guineapig/postLOI/guineapig/lumionly/raw
...
.
...
USER_spectrum_mode=6
...
corresponds
...
to
...
SB2009_350_nTF_extbunches.
...
USER_spectrum_mode=7
...
corresponds
...
to
...
SB2009_500_nTF_extbunches.
...
To
...
summarize,
...
the
...
USER_spectrum_mode
...
numbers,
...
aka
...
the
...
Lumi_linker
...
numbers,
...
are
...
as
...
follows:
...
Lumi_linker |
|---|
...
number |
|---|
...
Ecm(GeV) |
|---|
...
General |
|---|
...
Description |
|---|
...
Machine |
|---|
...
Configuration | |||
|---|---|---|---|
2 | 500 | RDR (Jul 2005) | rdr |
3 | 350 | RDR (Aug 2005) | rdr |
4 | 250 | RDR (Aug 2008) but do_isr=T |
...
(ISR |
...
turned |
...
on |
...
by |
...
mistake) |
...
rdr_isr_on |
...
5 | 250 | RDR (May 2009) (note: |
...
beams |
...
1 |
...
& |
...
2 |
...
are |
...
swapped, |
...
see |
...
user.f90) |
...
rdr_beams_swapped |
...
6 | 350 | SB2009_350_nTF_extbunches |
...
sb2009_ntf |
...
7 | 500 | SB2009_500_nTF_extbunches |
...
sb2009_ntf |
...
8 | 350 | SB2009_350_TF_extbunches |
...
sb2009_tf |
...
9 | 500 | SB2009_500_TF_extbunches |
...
sb2009_tf |
...
10 | 3000 | CLIC_July_2010_C+ |
...
+ |
...
clic_cplus |
...
11 | 3000 | CLIC_Aug_2010_C_Schulte |
...
clic_schulte_aug2010 |
...
12 | 1000 | ILC_1000_with_TF_Aug_2010 |
...
ilc_tf_aug2010 |
...
13 | 500 | CLIC_500_Feb_2011_Schulte |
...
clic_shulte_feb2011 |
...
14 | 1000 | ILC_1000_5pcBS_no_TF_Sep_2011 |
...
5pcBS_notf |
...
15 | 1000 | ILC_1000_10pcBS_no_TF_Sep_2011 |
...
10pcBS_notf |
...
16 | 1000 | ILC_1000_B1b_with_TF_Nov_2011 |
...
B1b_tf |
...
17 | 1500 | CLIC_1500_Nov_2011 |
...
clic_1500_nov2011 |
...
18 | 1000 | ILC_1000_Waisty_opt_Jan_2012 |
...
B1b_ws |
...
19 | 1400 | CLIC_1400_Jan_2012 |
...
clic_1400_jan2012 | |||
20 | 350 | CLIC_350_Apr_2012 | clic_350_apr2012 |
21 | 500 | ilc_500_waisty_250_jan_2012 | TDR_ws |
22 | 250 | ilc_250_waisty_250_jan_2012 | TDR_ws |
23 | 350 | ilc_350_waisty_250_jan_2012 | TDR_ws |
| 24 | 250 | ilc_250_cr_A_jun_2019 | eps_x=0.5*TDR |
Final State Parton Showering and Fragmentation
PYTHIA 6.205 is used for final state QED/QCD parton showering and for the fragmentation of quarks and gluons. Parton showering is performed for all final state fermions with the exception of electrons. Final state QED showering of electrons is normally turned off because the PYTHIA final state showering code indiscriminately uses the invariant mass of final state fermion-antifermion pairs for the maximum virtuality scale; however, PYTHIA final state QED showering of electrons was turned on for all Ecm = 250 GeV processes so that its effects could be studied in e+e- --> e+e-H. Otherwise default parameters are used for parton showering and fragmentation.
The interface to PYTHIA is contained in ftp://ftp-lcd.slac.stanford.edu/ilc3/whizdata/whizard/whizard-1.95/whizard-src/user.f90
...
.
...
The
...
source
...
code
...
for
...
referenced
...
subroutines
...
can
...
be
...
found
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/a6f/include
...
.
...
Color
...
flow
...
information
...
was
...
not
...
available
...
in
...
WHIZARD
...
1.40,
...
and
...
so
...
kinematic
...
and
...
parton
...
id
...
information
...
is
...
used
...
to
...
identify
...
color
...
singlet
...
systems
...
(see
...
ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/a6f/include/ilc_fragment_call.f90
...
and
...
ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/a6f/include/calc_a1sq_a2sq.f90
...
).
...
Kinematic
...
Cuts
...
Kinematic
...
cuts
...
are
...
applied
...
to
...
massless
...
particle
...
configurations
...
where
...
some
...
cutoff
...
is
...
required
...
to
...
avoid
...
an
...
infinite
...
cross
...
section.
...
In
...
the
...
WHIZARD
...
event
...
generation
...
stage
...
we
...
set
...
the
...
masses
...
of
...
all
...
first
...
and
...
second
...
generation
...
fermions
...
to
...
zero,
...
so
...
that
...
photons,
...
gluons,
...
electrons,
...
muons
...
and
...
u,d,s,c
...
quarks
...
are
...
all
...
subject
...
to
...
kinematic
...
cuts.
...
The
...
cuts
...
are
...
given
...
by
...
the
...
WHIZARD
...
input
...
parameters
...
default_jet_cut
...
,
...
default_mass_cut
...
and
...
default_q_cut
...
.
...
We
...
use
...
the
...
WHIZARD
...
default
...
value
...
default_jet_cut
...
=10
...
GeV
...
for
...
the
...
minimum
...
invariant
...
mass
...
of
...
a
...
pair
...
of
...
colored
...
particles.
...
We
...
use
...
default_mass_cut
...
=4
...
GeV
...
for
...
the
...
minimum
...
invariant
...
mass
...
of
...
a
...
pair
...
of
...
colorless
...
particles,
...
and
...
we
...
use
...
default_q_cut
...
=4
...
GeV
...
for
...
the
...
minimum
...
sqrt(-Q**2)
...
for
...
massless
...
t-channel
...
processes.
...
The
...
massless
...
assumption
...
for
...
the
...
first
...
and
...
second
...
fermion
...
generations
...
can
...
produce
...
some
...
odd
...
results
...
given
...
the
...
kinematic
...
cut
...
values
...
we
...
have
...
chosen.
...
For
...
example,
...
the
...
cross
...
section
...
for
...
gamma
...
gamma
...
->
...
tau
...
tau
...
is
...
significantly
...
larger
...
than
...
the
...
cross
...
section
...
for
...
gamma
...
gamma
...
->
...
mu
...
mu
...
since
...
the
...
cut
...
value
...
of
...
4
...
GeV
...
for
...
default_mass_cut
...
and
...
default_q_cut
...
is
...
much
...
larger
...
than
...
the
...
tau
...
mass.
...
Also
...
the
...
cross
...
section
...
for
...
gamma
...
gamma
...
->
...
...
is
...
suppressed
...
relative
...
to
...
the
...
corresponding
...
cross
...
section
...
for
...
lepton
...
pair
...
production
...
because
...
the
...
cut
...
value
...
of
...
10
...
GeV
...
for
...
default_jet_cut
...
is
...
larger
...
than
...
the
...
cut
...
value
...
of
...
4
...
GeV
...
for
...
default_mass_cut
...
.
Mixed stdhep files.
There are over 3500 files in ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/
...
,
...
each
...
produced
...
with
...
100%
...
electron
...
and
...
positron
...
polarization.
...
To
...
use
...
these
...
stdhep
...
files
...
in
...
practice
...
one
...
must
...
read
...
the
...
correct
...
number
...
of
...
events
...
from
...
a
...
subset
...
of
...
these
...
files,
...
or
...
read
...
a
...
mixed stdhep
...
file.
...
A
...
mixed stdhep
...
file
...
is
...
built
...
from
...
the
...
files
...
in
...
ftp://ftp-lcd.slac.stanford.edu/ilc2/whizdata/ILC500/
...
and
...
corresponds
...
to
...
a
...
particular
...
subset
...
of
...
final
...
states
...
with
...
a
...
particular
...
initial
...
state
...
electron
...
and
...
positron
...
polarization
...
combination
...
(such
...
as
...
-80%
...
electron
...
and
...
+30%
...
positron).
...
Event Weight
Due to the presence of some high cross section processes, the events in a mixed stdhep file are not completely unweighted.
The event weight must therefore always be considered when analyzing events.
This weight is stored in the variable EVENTWEIGHTLH in the stdhep common block HEPEV4.
Process Identification
For each event in a mixed stdhep file the variable IDRUPLH from the common block HEPEV4 is used to identify the process. (See the
description of the IDRUPLH variable in the introduction above.)
LOI Mixed stdhep files with randomized final states.
| Anchor | ||||
|---|---|---|---|---|
|
The following table lists Mixed Stdhep files that were produced for the LOI. The Raw Stdhep information corresponds to the original stdhep files, each with a single final state and 100% initial state polarization.
Mixed Stdhep Files | Raw Stdhep Files | Ecm(GeV) | mHiggs (GeV) | Processes | Event Weight Lumi (fb-1) | Pol. (%
|
|---|
...
/ |
|---|
...
% |
|---|
...
|
|---|
...
|
|---|
...
) | Mixed Nevents | ||||||
|---|---|---|---|---|---|---|---|
500 | 2000 | All 0,2,4,6 fermion SM processes | 250 | -80/+30 | 4,737,499 | ||
250 | 2000 | All 0,2,4,6 fermion SM processes | 125 | -80/+30 | 4,972,958 | ||
250 | 120 | ffH run1 | 125 | -80/+30 | 39893 | ||
250 | 120 | ffH run2 | 125 | -80/+30 | 39893 | ||
250 | 120 | ffH run3 | 125 | -80/+30 | 39893 | ||
250 | 120 | ffH run4 | 125 | -80/+30 | 39893 | ||
250 | 120 | ffH, H--> e2E2 | 125 | -80/+30 | 61191 | ||
1000 | 120 | vvH, H-> all modes except e2E2 | -100/+100 | 100,000 | |||
1000 | 120 | vvH, H-> e2E2 only | -100/+100 | 10,000 | |||
350 | 2000 | e2e2, ffe2e2 | |||||
350 | 120 | e2e2H | |||||
500 | 120 | e2e2H | |||||
250 | 120 | ffH, H--> cC | 125 | -80/+30 | 432,970 | ||
250 | 119.7 | e1E1H, e2E2H | 250 | -80/+30 | 149,994 | ||
250 | 120.0 | e1E1H, e2E2H | 250 | -80/+30 | 149,994 | ||
250 | 120.0 | ffH, H--> e2E2, postLOI, | 250 | -80/+30 | 499278 | ||
250 | 119.7 | e1E1H, H--> cC, postLOI, unit weight | 250 | -80/+30 | 3155 | ||
250 | 119.7 | e2E2H, H--> cC, postLOI, unit weight | 250 | -80/+30 | 2934 | ||
250 | 120.0 | e1E1H, H--> cC, postLOI, unit weight | 250 | -80/+30 | 3133 | ||
250 | 120.0 | e2E2H, H--> cC, postLOI, unit weight | 250 | -80/+30 | 2916 | ||
250 | 120.3 | e1E1H, H--> cC, postLOI, unit weight | 250 | -80/+30 | 3116 | ||
250 | 120.3 | e2E2H, H--> cC, postLOI, unit weight | 250 | -80/+30 | 2899 | ||
250 | 119.7 | e1E1H, H--> cC, postLOI | 250 | -80/+30 | 499,523 | ||
250 | 119.7 | e2E2H, H--> cC, postLOI | 250 | -80/+30 | 501,011 | ||
250 | 120.0 | e1E1H, H--> cC, postLOI | 250 | -80/+30 | 499,465 | ||
250 | 120.0 | e2E2H, H--> cC, postLOI | 250 | -80/+30 | 500,285 | ||
250 | 120.3 | e1E1H, H--> cC, postLOI | 250 | -80/+30 | 499,562 | ||
250 | 120.3 | e2E2H, H--> cC, postLOI | 250 | -80/+30 | 498,836 | ||
250 | 120.0 | e1E1H, SM H decay, postLOI | 250 | -80/+30 | 499,462 | ||
250 | 120.0 | e2E2H, SM H decay, postLOI | 250 | -80/+30 | 500,285 | ||
250 | 2000 | e1E1, 60<Mee<115 GeV, etc. | 125 | -80/+30 | 3,296,144 | ||
230 | 120 | ffH | 250 | -80/+30 | 359,754 | ||
500 | 2000 | e2E2+missing, e3E3+missing | 250 | -80/+30 | 81,310,104 | ||
500 | 2000 | e3E3, DESY, correct tau pol. | 250 | -80/+30 | 1,148,162 | ||
500 | 2000 | e3E3 | 2000 | -80/+30 | 1,443,280 | ||
500 | 2000 | six fermions from tT, Mt=173.5 GeV | 250 | -80/+30 | 741,725 | ||
500 | 2000 | six fermions from tT, Mt=174.0 GeV | 250 | -80/+30 | 757,724 | ||
500 | 2000 | Desy Susy Point5 | 250 | -80/+30 | 106,053 | ||
500 | 2000 | SLAC Susy Point5 delM = 0.0 | 500 | -80/+30 | 1,264,422 | ||
500 | 2000 | SLAC Susy Point5 delMch1 = 0.5 | 500 | -80/+30 | 1,293,786 | ||
500 | 2000 | SLAC Susy Point5 delMneu1 = 0.5 | 500 | -80/+30 | 1,204,148 | ||
500 | 2000 | SLAC Susy Point5 delMneu2 = 0.5 | 500 | -80/+30 | 1,276,559 | ||
500 | 120 | ffHH, gHHH=1.00 | 1000 | -80/+30 | 116486 | ||
500 | 120 | ffHH, gHHH=1.25 | 1000 | -80/+30 | 131396 |
The lumi values in this table refer to the event weight normalization, and may not correspond in some instances to the ratio of the number of events to the cross section. Each Mixed Stdhep
File directory contains files inv_ab_stdhep_files_XXX_ecmEEE_80L_30R and inv_ab_stdhep_files_XXX_ecmEEE_80R_30L which describe the raw stdhep files used to build the mixed files (for example ftp://ftp-lcd.slac.stanford.edu/
...
...
ILC250/Large_Stdhep_SM/inv_ab_stdhep_files_Large_Stdhep_SM_ecm250_80L_30R).
The fields in the ..._inv_ab_stdhep_files are:
filename (at SLAC) |
| Begin event |
| End event |
| Event weight |
| process_id |
| 1st initial particle polarization if particle is e- or e+; beams/brems flag if photon |
| 2nd initial particle polarization if particle is e- or e+; beams/brems flag if photon |
|---|
The "index" link in the "Raw Stdhep Files" column takes you to the list of processes in the mixed stdhep file. The five columns in this list are: process_id, initial_state,
the variable IDRUPLH, an internal sequence number (1 - 4) and a bit indicating whether or not events were produced for this particular initial state polarization sign combination (0 = events generated, 1= events not generated). The internal sequence number denotes the initial state electron or positron helicity and/or the type of initial state photon (EPA or bremsstrahlung):
Internal Seq Number |
|
|
|
| e1 | E1 |
|
|
|
| e1 | A |
|
|
|
| A | E1 |
|
|
|
| A | A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 |
|
|
|
| L | L |
|
|
|
| L | EPA |
|
|
|
| EPA | L |
|
|
|
| EPA | EPA |
2 |
|
|
|
| L | R |
|
|
|
| L | beams |
|
|
|
| beams | L |
|
|
|
| EPA | beams |
3 |
|
|
|
| R | L |
|
|
|
| R | EPA |
|
|
|
| EPA | R |
|
|
|
| beams | EPA |
4 |
|
|
|
| R | R |
|
|
|
| R | beams |
|
|
|
| beams | R |
|
|
|
| beams | beams |
DBD Mixed stdhep files with randomized final states.
| Anchor | ||||
|---|---|---|---|---|
|
The following table lists Mixed Stdhep files that have been produced for the DBD.
Mixed Stdhep Files | Ecm(GeV) | mHiggs (GeV) | Processes | Event Weight Lumi (fb-1) | Pol. (%
/ %
) | Mixed Nevents | ||||
|---|---|---|---|---|---|---|---|---|---|---|
1000 | 2000 | 4f_WW | 1000 | -80/+20 | 5,135,536 | |||||
1000 | 2000 | 6f_ttbar | 1000 | -80/+20 | 566,454 | |||||
1000 | 2000 | all_other_SM_background | 1000 | -80/+20 | 3,232,672 | |||||
1000 | 2000 | eeZ_vvZ_leptonic | 1000 | -80/+20 | 10,965,564 | |||||
1000 | 2000 | evW_eeZ_vvZ_semileptonic | 1000 | -80/+20 | 6,570,292 | |||||
1000 | 125 | higgs_ffh_mumu | 1000 | -80/+20 | 316,219 | |||||
1000 | 125 | higgs_ffh_nomu | 1000 | -80/+20 | 1,544,378 | |||||
1000 | 2000 | ttbb-6q-all | 1000 | -80/+20 | 51,000 | |||||
1000 | 2000 | ttbb-ln4q-all | 1000 | -80/+20 | 51,000 | |||||
1000 | 125 | tth-2l2nbb-hbb | 1000 | -80/+20 | 51,000 | |||||
1000 | 125 | tth-2l2nbb-hnonbb | 1000 | -80/+20 | 51,000 | |||||
1000 | 125 | tth-6q-hbb | 1000 | -80/+20 | 51,000 | |||||
1000 | 125 | tth-6q-hnonbb | 1000 | -80/+20 | 51,000 | |||||
1000 | 125 | tth-ln4q-hbb | 1000 | -80/+20 | 51,000 | |||||
1000 | 125 | tth-ln4q-hnonbb | 1000 | -80/+20 | 51,000 | |||||
1000 | 2000 | ttz-6q-all | 1000 | -80/+20 | 51,000 | |||||
1000 | 2000 | ttz-ln4q-all | 1000 | -80/+20 | 51,000 | |||||
1000 | 2000 | aa_lowpt | 0.00292 | -80/+20 | 2,394,460 | |||||
500 | 2000 | 6f_ttbar_mt173p5 | 250 | -80/+30 | 925,595 | |||||
500 | 2000 | 6f_ttbar_mt174p0 | 250 | -80/+30 | 938,761 | |||||
500 | 2000 | all_SM_background | 250 | -80/+30 | 2,269,212 | |||||
500 | 2000 | bhabha_inclusive | 0.00036 | -80/+30 | 100,334 | |||||
| 500 | 2000 | ea_ea | 0.000144 0.000144 | -80/+30 +80/-30 | 1,151 1,151 | |||||
500 | 2000 | aa_lowpt | 0.00347 | -80/+30 | 2,199,480 | |||||
250 | 2000 | all_SM_background | 250 25 25 | -80/+30 -80/-30 +80/+30 | 2,822,661 2,294,529 1,657,611 | |||||
250 | 2000 | evW_eeZ_vvZ_semileptonic | 250 | -80/+30 | 2,030,078 | |||||
250 | 2000 | higgs_ffh_zz | 250 | -80/+30 | 120,000 |
FAQ
Whizard 1.40 has no gluon emission by default, leading to potentially incorrect multiplicity distributions.
The WHIZARD version 1.40 that was used to generate this sample indeed did not include gluon emission. However gluon radiation was simulated using PYTHIA's parton showering algorithm. WHIZARD versions 1.50 and higher include gluon emission, and, starting with version 1.91, WHIZARD has its own parton showering code.
Whizard 1.40 has an incorrect implementation of the CKM matrix. Only diagonal terms of the matrix are present (and = 1!), giving wrong W decays.
Although true for the Whizard version 1.40 that was used to generate this data sample, it is extremely doubtful that this will have any effect on the current analyses. WHIZARD versions 1.51 and higher include the correct CKM matrix, and so future data samples will include the rarer W decays.
This sample has generator level cuts a la SiD, providing a potential bias when used for ILD.
There are, indeed, some kinematical cuts for processes with divergent cross-sections, which can be seen by looking at the whizard.in file as described above. However, the only kinematic cut that leads to a genuine loss of events is a 4 GeV minimum invariant mass cut on final state fermion-antifermion pairs.