Standard Model Processes for LEP2

(183 GeV)

The page contains information about Monte Carlo for standard Model processes for LEP2. All of the Monte Carlo's shown here were generated at 183 GeV. The datasets available are divided by the database used to generate them.

This page is maintained by C. Loomis. Please email any corrections, complaints, etc. to him.

Additional WW Monte Carlo datasets are described here.

Other Monte Carlo datasets are listed in the last table. See the additional information for a complete description of these datasets.


NOTE: The cards for the POT files are provided for convenience. However, the MINIs contain nearly the same information, can be run through more quickly, and use less staging space. Therefore, using POTs is strongly discouraged.

Updates/News
10/03/99 The Zee samples with the high and low cutoffs were switched.
14/12/98 The tautau MC samples contained mumu data. This is now fixed.
12/08/98 Two WW color reconnection samples were incorrectly listed as qqbar. These have been removed. See WW page for these samples.
06/08/98 The cross-section for ZZ production was incorrectly listed here (and in scanbook) as 2.93 pb. The correct value, 2.545 pb, is now listed.
26/06/98 New datasets for qqbar and Bhabba scattering have been included. Two samples (WW and 2 photon->hadrons) have been withdrawn from scanbook and removed from this page.
23/01/98 FILI cards updated. Several samples have more events. The qqbar fili cards (pythia, DB227) were corrected. They contained some 130 and 136 GeV data because of a script bug. Apologies for any inconveniences.
16/09/97 New datasets for MC '97 (HERWIG qq, 4-fermion w scint. in, 2-photon ev,...)
21/08/97 more background MC (qq, WW, ZZ) from Wisconsin (MINI only)
31/07/97 New MC gg->had and WW
25/07/97 New MC for 1997 gg->hadrons, mu+mu-, tau+tau-
16/07/97 New mu+mu- and gg->had available
11/07/97 New WW MC available
01/07/97 gg MC available
10/06/97 MINI cards
05/06/97 200 k 2-photon events, additional 100k qqbar
150 k WW with gal305.2 and database 225 (LCAL scintillators)
100k qqbar from SACALY
12/05/97 second set of 4-fermion events (gal305.2)
05/05/97 bug found (no HCAL muon ineff. maps), executable overwritten; ongoing production (with gal305.1) stopped
30/04/97 production started

2-Fermion Processes

Process Generator Versions X-sec. (pb) POT MINI
ee BHWI01 G306+J306+DB234 1025.39 593647 593647
ee UBAB02 G305+J302+DB225 1500 629655 629655
ee UBAB02 G305+J303+DB225 1500 85552 85552
ee UBAB02 G305+J303+DB226 1500 200000 200000
ee UBAB02 G306+J306+DB234 1500 350000 350000
mu mu KORL08 G305+J303+DB225 8.9 600000 500000
b bbar KORL08 G305+J302+DB225 21.303 4998 4998
b bbar KORL08 G305+J304+DB228 21.303 10000 10000
b bbar KORL08 G306+J306+DB234 21.303 27999 27999
c cbar KORL08 G305+J302+DB225 21.896 5000 5000
c cbar KORL08 G305+J304+DB228 21.896 10000 10000
c cbar KORL08 G306+J306+DB234 21.896 28000 28000
d dbar KORL08 G305+J302+DB225 21.774 5000 5000
d dbar KORL08 G305+J304+DB228 21.774 10000 10000
d dbar KORL08 G306+J306+DB234 21.774 28000 28000
s sbar KORL08 G305+J302+DB225 21.820 4998 4998
s sbar KORL08 G305+J304+DB228 21.820 10000 10000
s sbar KORL08 G306+J306+DB234 21.820 28000 28000
u ubar KORL08 G305+J303+DB225 22.045 599691 599691
u ubar KORL08 G306+J306+DB234 22.045 595476 595476
q qbar HRWG09 G305+J303+DB226 101.8 99978 99977
q qbar PYTH04 G305+J302+DB224 101.8 561881 563881
q qbar PYTH04 G305+J303+DB225 101.8 62500 N/A
q qbar PYTH04 G305+J303+DB226 101.8 137500 200000
q qbar PYTH04 G305+J304+DB227 101.8 N/A 453660
q qbar PYTH04 G306+J306+DB234 101.8 565184 533437
q qbar PYTH04 G306+J306+DB238 101.8 500000 500000
tau tau KORL08 G305+J303+DB225 8.9 300000 300000
tau tau KORL08 G306+J306+DB234 8.9 595476 595476

2-Photon Processes

Process Generator Versions X-sec. (pb) POT MINI
b bbar PHOT02 G305+J302+DB225 0.53 530 530
c cbar PHOT02 G305+J302+DB225 93.6 9392 9392
ee PHOT02 G305+J302+DB225 3760 2499896 2499896
ee PHOT02 G305+J303+DB226 3760 2958351 2958351
ee PHOT02 G306+J306+DB234 3760 5682755 5639996
mu mu PHOT02 G305+J302+DB225 3420 2929066 2975702
s sbar PHOT02 G305+J302+DB225 26 2600 2600
tau tau PHOT02 G305+J302+DB225 421 388766 399700
u/d u/dbar PHOT02 G305+J302+DB225 474 47133 47133

4-Fermion Processes

Process Generator Versions X-sec. (pb) POT MINI
W e nu PYTH04 G305+J302+DB224 0.608 6000 6000
W e nu PYTH04 G305+J302+DB225 0.608 6000 6000
W e nu PYTH04 G306+J306+DB234 0.608 6000 6000
Zee PYTH04 G305+J302+DB225 97. 49977 49977
Zee PYTH04 G306+J306+DB234 97. 60000 60000
Zee PYTH04 G305+J302+DB224 6.8 59975 59975
Zee PYTH04 G306+J306+DB234 6.8 60000 60000
Z nu nu ZNNB01 G305+J302+DB224 0.013 1000 1000
Z nu nu ZNNB01 G306+J306+DB234 0.013 20000 20000
ZZ PYTH04 G305+J302+DB224 2.545 29996 29996
ZZ PYTH04 G305+J302+DB225 2.545 29995 29995
ZZ PYTH04 G306+J306+DB234 2.545 29999 29999

Other Monte Carlo Datasets

Process Generator Versions FILI cards Comments
q qbar KORL08 G305+J304+DB228 FILI 130 GeV; see add. info.
q qbar KORL08 G305+J304+DB228 FILI 136 GeV; see add. info.
q qbar KORL08 G305+J302+DB225 FILI 183 GeV; see add. info.