NotesInPreparation < CMS

---+++Notes in preparation

| *Author* | *Title* | *Files* | *Comment* |
| Ferenc Siklér | Reconstruction of low p<sub>T</sub> charged particles with the pixel detector | [[%ATTACHURL%/lowpttracking.ps.gz][%ICON{ps}%]] [[%ATTACHURL%/lowpttracking.pdf][%ICON{pdf}%]] | first draft |
| Ferenc Siklér | Reconstruction of V0s and photon conversions with the pixel detector | [[%ATTACHURL%/v0reconstruction.ps.gz][%ICON{ps}%]] [[%ATTACHURL%/v0reconstruction.pdf][%ICON{pdf}%]] | first draft |
| Ferenc Siklér | Particle identification using energy loss in the pixel detector |  [[%ATTACHURL%/energyloss.ps.gz][%ICON{ps}%]] [[%ATTACHURL%/energyloss.pdf][%ICON{pdf}%]] | first draft |
| Gergely Patay | Phi meson reconstruction using low p<sub>T</sub> tracking and dE/dx in the pixel detector |  [[%ATTACHURL%/phinote.pdf][%ICON{pdf}%]] | 0th draft |

---+++Software in CMSSW

---++++ !RecoPixelVZero/PixelVZeroFinding

<p style="text-align: justify;">
This is a fast V0- and conversion finder using !PixelTracks. Actually it works with reco::Tracks provided all the relevant fields are filled. A new data format !VZero and its !VZeroCollection was defined and put into !DataFormats/TrackReco.
</p>

1000 special events have been produced which contain 10 K<sub>S</Sub><sup>0</sup>, 10 &Lambda; and 10 &gamma;, all of them in the ranges -2<&eta;<2 and 2 !GeV/c<p<sub>T</sub><4 !GeV/c. The events with !PixelTracks are available at =/afs/kfki.hu/scratch/sikler/cmssw/pixeltracks.root=.

<p style="text-align: justify;">
Note that due to the default setting of !GlobalTrackingRegion (float ptMin = 1., float originRadius = 0.2) the track reconstruction is limited. This is why no dE/dx calculation was included for the identification of protons from &Lambda;s: it would not have helped at higher momenta. Of course all that can be substantially enhanced with low p<sub>T</sub> tracking. An associator class is not included yet.
</p>

   * Installation:
      * =scramv1 project CMSSW CMSSW_0_8_0=
      * =cd CMSSW_0_8_0/src=
      * Get the file [[%ATTACHURL%/src.tgz][src.tgz]] from the list of attachments below
      * =tar -xvzf src.tgz=
      * =cd !RecoPixelVZero/PixelVZeroFinding/test=

   * Compilation:
      * =eval `scramv1 runtime -csh`=
      * =scramv1 --debug build=

   * Execution:
      * =eval `scramv1 runtime -csh`=
      * =cmsRun test.cfg=

   * Control plots:
      * =root -q -b test.C=
      * Look at the produced [[%ATTACHURL%/test.ps][test.ps]]

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-- Main.FerencSikler - 20 Jun 2006

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
tgz	src.tgz	r2 r1	manage	16.0 K	2006-08-23 - 05:36	FerencSikler
ps	test.ps	r2 r1	manage	29.9 K	2006-08-23 - 05:37	FerencSikler

This topic: CMS > TrackerSoftware > NotesInPreparation
Topic revision: r11 - 2006-08-23 - FerencSikler

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