Pixel Reconstruction Offline Guide

Contacts

• DPG Tracker Conveners: Didier Contardo (strip tracker), Vincenzo Chiochia (pixel tracker)
• Hypernews forum: https://hypernews.cern.ch/HyperNews/CMS/get/recoTracking.html (hn-cms-recoTracking@cernNOSPAMPLEASE.ch)

Introduction

The Pixel reconstruction software is part of the general CMS track reconstruction code. In this page we highlight the pixel-specific components used to reconstruct pixel hits, seeds as well as pixel only tracks and vertices for HLT selection. For a general introduction to Track reconstruction please refer to the dedicated page

Tutorials

• Track reconstruction

RECO/AOD collection

• RECO collections
• AOD collections

Algorithms and Software Architecture

• Description of default sequences used for pixel reconstruction
• Description of some advanced topics
• Description of algorithms and activities

Analysis and Validation

Please refer to the dedicated Tracker DPG page.

Documents

Subgroups/Activities

The Pixel offline group coordinates the development and deployment of offline software specific to the CMS Pixel detector.

The group holds regular bi-weekly meetings on mondays at 17:00 CERN time (10:00 FNAL time). No meeting takes place during the CMS Weeks or Tracker Days. Transparencies are available on the Indico web page

The group activities are divided into four sub-tasks. The mandate is to deliver the following components of the Pixel Offline Software:

1. Pixel simulation in CMSSW
   • BPIX and FPIX Geometry (F.Ambroglini, O.Aqunies, S.Banerjee, V.Cuplov, X.Huang, D.Kotlinski, A.Lopez, D.Onoprienko, N.Parashar)
   • Pixel digitizer (D.Kotlinski, M.Pioppi)
   • Pixel Validation suite (X.Huang, L.Shabalina, J.Shaev, G.Giurgiu)
2. Pixel local reconstruction and high level calibration in CMSSW
   • Raw2Digi conversion (M.Konecki, A. York)
   • Error handling with RAW data (A.York)
   • Pixel clusterizer and RecHits (V.Chiochia, G.Giurgiu, M.Swartz, P.Maksimovic, J.Shaev)
   • Lorentz angle calibration (V.Chiochia, L.Wilke, T.Speer)
   • Pixel calibrations in CMSSW(F.Blekman, E.Friis, J.Keller, T.Kelly)
3. Pixel Data Quality Monitoring in CMSSW
   • What is it and how to use it (P.Merkel, V.Chiochia, S.Chuang, D.Menasce, K.Rose, A.York)
4. Development of new reconstruction algorithms and calibration procedures to cope with ageing effects:
   • Hit reconstruction after irradiation (E.Alagoz, V.Chiochia, M.Swartz)
   • PIXELAV: Standalone pixel simulation with irradiation effects (V.Chiochia, M.Swartz)

Related Topics

• SWGuideVertexReco

Pixel Reconstruction SandBox

Area in free format for items that the groups wish to add: meetings, to do lists, links etc

Review status

Responsible: VincenzoChiochia
Last reviewed by: Most recent reviewer