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LHCb Stripping page

Stripping Stream Definitions

The stream definitions for different strippings can be found here:

Stripping Statistics

See StrippingStatistics page.

Stripping FAQ

See StrippingFAQ page.

Disk Campaign

Missing variables on MicroDST

Please add your favorite variables to this Twiki page.

Common Particles Change

The proposed changes to Common Particles, to be discussed are presented on the CommonParticles page.

Default vertex fitter

Proposed to replace OfflineVertexFitter by LoKi::VertexFitter, to be discussed on the StrippingVertexFitter page.

Stripping Productions

A list of past, present and future stripping production can be found at the StrippingProductions page.

Stripping TCK shell

Stripping TCK can be used to access configuration of stripping lines in various stripping productions. See StrippingTCK page.

How to add a line

So far we have always included the head of the stripping selections in DaVinci. We cannot continue like that. Since the beginning of the year I have asked everyone to present their stripping selection at T&S meeting. One such talk is scheduled today. Now that we'll soon start stripping real data we also need to discuss any change to what we've been using. By default, what goes in the head of cvs will not be used in the stripping. Only what's blessed by the PPG and OPG will be used.

Practically, if you want to add a line, or change a line, you must

  1. Get the change approved by your WG.
  2. Present it at T&S if it does not comply with the rate and cpu guidelines, of if asked to by the stripping coordinators.
  3. If agreed by the T&S meeting, the proposed change (practically, a bunch of changes) will make it to a production release. The green light has to be given by OPG and PPG to use this release in production.

Removed Stripping Selections

See StrippingSelectionsRemoved page for a list of the lines that were removed in July 2010.

Stripping Selections

See StrippingSelections page.

Stripping Settings and the Stripping Archive

See the StrippingSettings page.

Stripping Workflow

See StrippingWorkFlow page.

Stripping Framework

See StrippingLines page.

Stripping DST

The stripping DST contains the full DST, plus a MicroDST partition containing the full decay tree of the stripping line selected candidates. It also contains the necessary particle to primary vertex (PV) relations in order to guarantee that the same PV is used to apply further cuts and estimate PV-dependent quantities. If PV re-fitting has been used in the selection, the re-fitted PVs are also saved. The relations point to these.

See the DaVinciTutorial for examples of how to run on a stripped DST.

What version of which application was run on

You need the production ID. This is part of the LFN (a directory). In that case 5614. Now go to the Production monitor web page and search for production 5614. Click on a file and select "Show Details". This will give you the details of the whole production workflow. I read:
Merge Production 5614 for event type 30000000 has following parameters:

Production priority: 9
BK Config Name Version: MC MC09
BK Processing Pass Name: MC09-Stripping02
CondDB Tag: sim-20090402-vc-md100
DDDB Tag: MC09-20090602

====> DaVinci v24r4 Step0
  DaVinci Option Files:
    $APPCONFIGOPTS/DaVinci/DVStrippingETC-MC09-v24r4.py
  ExtraPackages: AppConfig.v3r20
====> Brunel v34r7 Step1
  Brunel Option Files:
    $APPCONFIGOPTS/Brunel/MC09-Stripping.py
  ExtraPackages: AppConfig.v2r9p1
====> DaVinci v24r4 Step2
  DaVinci Option Files:
    $APPCONFIGOPTS/DaVinci/DVStrippingDST-MC09-v24r4.py
  ExtraPackages: AppConfig.v3r20
====> LHCb v28r0 Step3
  LHCb Option Files:
    $STDOPTS/PoolCopy.opts
  ExtraPackages: 
BK Input Data Query:
    EventType = 30000000
    FileType = JPSI.DST
    ProductionID = 5600

BK Browsing Paths:
MC/MC09/Beam5TeV-VeloClosed-MagDown-Nu1/MC09-Stripping02/30000000/JPSI.DST

Stripping coordinators of WGs

QCD, Electroweak and Exotica Will Barter
B hadrons and Quarkonia Jibo He & Lucio Anderlini
Charm physics Andrea Contu & Mat Charles
Rare decays Thomas Blake
B decays to Charmonia Francesca Dordei
B decays to Open Charm Anton Poluektov
Charmless B decays Stefano Perazzini
Semileptonic B decays Mika Anton Vesterinen
Calibration Andrew Powell

The WG contacts are also listed here.

Responsibilities of stripping coordinators of WGs

  • Put together the Stripping lines of your WG shortly after the deadline, so that we can fix the Stripping and launch the validation production as quickly as possible to spot out any problem.
  • Make sure that all the stripping lines of your WG are included, i.e., by asking people to check once a draft of Stripping is announced.
  • Once the validation production data of Stripping is available (announced to the mailing list), have a look at them as quickly as possible. You should at least check one of the most interested channel (with high yield) of your WG for all the streams in which there are stripping lines from your WG. If everything is OK, e.g., no problem in running over the data, everything (e.g., luminosity) you need is there, give the green light; otherwise report immediately the problem.
  • Inform your WG if changes made/proposed to Stripping affect your WG.
  • To be added.

-- JuanPalacios - 09-Oct-2009 -- PatrickSKoppenburg - 20-Nov-2009 -- JuanPalacios - 25-Jun-2010 -- JuanPalacios - 13-Oct-2010 -- UlrikEgede - 12-Jan-2011

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Topic revision: r57 - 2012-07-31 - He
 
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