Available Skimmed Data
There are 111 skims for Run 1, Run 2 and Run 3 on-peak and Run 1
and Run 2 off-peak data available currently, these are not
complete yet, see the full list of skims for
how much data is in each skim.
The format for the dataset names are of the form
Tau1N-Run2-OnPeak-R14
- Replace Tau1N with your skim
name
- Run2 with the run cycle you want
- OnPeak or OffPeak for the on and off resonance
data
- R14 all data in the bookkeeping is currently release 14
(refers to the conversion release number for Runs 1-3)
There is a special AllEvents skim, this should be used it you need to
run over every event:
| Dataset |
Number of
collections |
Total number
of runs |
L3 Lumi
(fb^-1) |
|---|
| AllEventsSkim-Run1-OffPeak-R14 | 3 | 265 | 2.31 |
| AllEventsSkim-Run1-OnPeak-R14 | 19 | 3222 | 19.39 |
| AllEventsSkim-Run2-OffPeak-R14 | 7 | 598 | 7.05 |
| AllEventsSkim-Run2-OnPeak-R14 | 47 | 5156 | 60.91 |
| AllEventsSkim-Run3-OffPeak-R14 | 3 | 250 | 2.44 |
| AllEventsSkim-Run3-OnPeak-R14 | 27 | 3447 | 31.36 |
| AllEventsSkim-Run4-OffPeak-R14 | 10 | 625 | 9.92 |
| AllEventsSkim-Run4-OnPeak-R14 | 80 | 6573 | 99.24 |
|
|---|
NOTE: The AllEvent-Run4- collections do contain only DQG GOOD runs
but have not been skimmed and have not tag bits set. |
|---|
| AllEvents-Run4-OffPeak-R14 | 626 | 626 | 9.94 |
| AllEvents-Run4-OnPeak-R14 | 6584 | 6584 | 99.44 |
NOTE: there are also AllEvent-Run1-OnPeak-R12 datasets,these should not be used.
As they have only the converted tag bits set and
are based on the direct conversion of the R12 release.
|
|---|
| AllEvents-Run1-OffPeak-R12 | 265 | 265 | 2.31 |
| AllEvents-Run1-OnPeak-R12 | 3222 | 3222 | 19.39 |
| AllEvents-Run2-OffPeak-R12 | 598 | 598 | 7.05 |
| AllEvents-Run2-OnPeak-R12 | 5156 | 5156 | 60.91 |
| AllEvents-Run3-OffPeak-R12 | 250 | 250 | 2.44 |
| AllEvents-Run3-OnPeak-R12 | 3448 | 3448 | 31.38 |
Report problems with accessing the collections (Kanga files in
xrootd) to KanSOS
hypernews
Make TCL files from a dataset
Use the command:
BbkDatasetTcl Tau1N-Run2-OnPeak-R14
see the Bookkeeping receipes
page for more details on using the bookkeeping tools and
for links to the complete documentation.
Report problems with the bookkeeping tools to
Bookkeeping hypernews
Problems with the current skims
Data skimmed with 14.2.x
Approx 50% of the skims are with this release
2573 of 3488 runs in Run1,
3789 of 5760 runs in Run2,
0 of 3689 runs in Run3 (runs skimmed at SLAC only!)
Look here for a detailed list
of all affected collections (Run1-Run3).
|
Emc cluster/bump/cand hookup problem
This problem occurs in ~1/200 events. Also is a change in
cluster position algorithm.
Fixed in 14.3.1a (and Emc cluster position algorithm was backed
out). There is also a fix-on-read, but skims are done without that
(therefore you may loose events in your skim).
IHBD D*rho skim incorrectly selects events
A bug in Beta that has been fixed in 14.3.1a. However, the fix
uncovered a problem in this skim (which was there before).
Fixed in 14.3.1b.
BtoDlnu and BchToD0KAll thought they had UsrData
On looking at the output from a merge of the skim discovered they
had not activated their UsrData.
Fixed in 14.3.1c.
|
| All data skims
|
Some tag quantities are missing in output
The number of tag bits in the skim executable varies from
event-to-event. This was not expected and has resulted in some tag
bits not being written. As we have all the skims (they are defined
correctly) the impact of this isn't as bad as it could have been. Need
to understand this in more detail though. Some ones that are missing
that are the most worrying are the mumu and B counting tag bits (may
be possible to reconstruct some of these on read). The complete list
(from scanning 10fb^-1) is here.
This should be fixed in 14.3.2e.
|
David Edward Hutchcroft
Last modified: Wed Sep 1 14:29:15 BST 2004
|
