Optimized Search for the First Generation LeptoQuarks
This analysis is the next pass of the standard 1st generation
leptoquark analysis and consists of the loose event selection which utilizes both
PELC and PPHO electrons, random grid search for cut optimization and mass analysis.
New data Ntuples
Click
here for NTUPLE format description (132-column text file).
New Ntuples are being made for the optimized analysis by
Greg Landsberg. Currently the following
Ntuples are available on the disk in (FNALD0::)NEW_PHENOM_1$HROOT:[GREG.PLQ]
- eejj Ntuples with ET(e1,e2) > 20 GeV, ET(j1,j2) > 15 GeV, minimum quality cuts
- Run IA - NEWNT_1A.NTP (969 events based on ELE_2_HIGH trigger)
- Run IB - NEWNT_1B.NTP (2270 events based on EM2_EIS2_HI trigger)
- Run IC - NEWNT_1C.NTP (888 events based on EM2_EIS_ESCA trigger)
- Run I - FAILED.NTP (250 events from Run I picked from the failed partitions)
New Data Analysis
Dump glossary
Parameters of the 4 new candidates (132-column text file)
Parameters of the 3 standard candidates (132-column text file)

Main Analysis Spreadsheet
QCD background data sheet
Drell-Yan background data sheet
Top background data sheet
Acceptance
Efficiency
Data
Data vs. Background prediction
Leptoquark Mass Limits
Parameters of the 8 candidates with ST > 250 (132-column text file)
Parameters of the 7 Z+jets candidates with ST > 300 (132-column text file)
Z+2j event with ST=726 GeV AND A HOT CELL IN IT
Problems and Bugs
RG/NN search
RG/NN ntuple variables agreed upon at the LQ meeting 4/11/97
Excel spreadsheet
or its HTML conversion
or Plain text from
Mark Strovink with the description on how to optimize S vs. B
Mass Fit
Link to the Mass Fit page maintained by Gordon Watts
Jet Recombination
Link to the Jet Recombination page maintained by Greg Landsberg
New MC Signal and Background Ntuples
Scalar LQ MC samples.
A bug was found in the latest MC files due to a wrong RECO RCP parameters used in the GEANT
data processing. Therefore, these new files are not usable. The Ntuples were made from the old
files (2000 events per mass bin) and they are located in:
NEW_PHENOM_1$HROOT:[GREG.LQMC]
LQ160.NTP
LQ170.NTP
LQ180.NTP
LQ200.NTP
LQ250.NTP
An additional Ntuple with ISAJET information saved was produced for the LQ mass of 200 GeV:
NEW_PHENOM_1$HROOT:[GREG.LQMC]LQ200_ISAJET.NTP
I have also produced one Ntuple with jet RMS corrections turned off (not very useful for the
analysis: just a cross-check) and it is in:
NEW_PHENOM_1$HROOT:[GREG.LQMC]LQ200_NORMS.NTP
Drell-Yan MC Ntuples
These Ntuples for the different sqrt(s)-ranges can be found in:
NEW_PHENOM_6$HROOT:[GREG.DYMC]
DY20-60.NTP
DY60-120.NTP
DY120-250.NTP
DY250-500.NTP
I have also copied them on d0cha:
d0cha://prj_root/714/new_1/dymc/dy*.ntp
QCD Data Ntuples
These Ntuples were created from the JET_3_MON trigger using the entire Run Ib
statistics and have the requirement of 3 jets in the event with the leading jet ET
above 20 GeV and the other two jets above 15 GeV. They are currently in my temporary
area on D0TNG (there is not enough space on project disks!):
TMP$ROOT332:[LANDSBERG.LQ]
QCD_1.NTP
QCD_2.NTP
QCD_3.NTP
QCD_4.NTP
(four partitions corresponding to different run range of Run Ib; combine them all to obtain
full statistics). I have also copied them to d0cha disk:
d0cha://prj_root/714/new_1/qcd/qcd_?.ntp
Fake EM Data Ntuples
These Ntuples were created from the JET_3_MON trigger using the entire Run Ib
statistics and have the requirement of 2 jets in the event with the ET
above 15 GeV and an additional EM object with the ET > 20 GeV. They are currently in my
temporary directory on Alpha cluster:
TMP$ROOT332:[LANDSBERG.LQ]
FAKE_1.NTP
FAKE_2.NTP
FAKE_3.NTP
FAKE_4.NTP
(four partitions corresponding to different run range of Run Ib; combine them all to obtain
full statistics). Use QCD Ntuples (described above) for normalization purposes when calculating
jet faking EM objects probability. I have also copied them to d0cha disk:
d0cha://prj_root/714/new_1/qcd/fake_?.ntp
Top->(dileptons) Ntuples
These Ntuples were produced from the top group dilepton MC sample
(PRJ$ROOT240:[TOP15.MC.HERWIG_TTBAR.TTLL170]TOP_TTLL170XS_HW057_G315TM3_*.X_UDST*)
for GeV top mass. At the Ntuple creation time I required two EM clusters with ET > 20 GeV and
two additional jets above 15 GeV
The Ntuples can be found in:
NEW_PHENOM_1$HROOT:[GREG.TOP]
TOP_LL170_A.NTP
TOP_LL170_B.NTP
TOP_LL170_C.NTP
TOP_LL170_D.NTP
TOP_LL170_E.NTP
TOP_LL170_F.NTP
TOP_LL170_G.NTP
TOP_LL170_H.NTP
TOP_LL170_I.NTP
TOP_LL170_J.NTP
(10 partitions corresponding to different input partitions).
Last updated May 1, 1997 by Greg Landsberg