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HBD Software Update

This update provides an overview of recent developments in HBD software at UC Riverside, including modifications to the PHCentralTrack and HBDMon.C tools, both crucial for hub and spoke variable management and high voltage scans optimization. The code now compiles efficiently on VA machines, albeit with a need for data storage solutions, either through databases or simple text files. Additionally, it covers simulation generation efforts and addresses outstanding questions about scintillation and Cherenkov light modeling, known issues with reconstruction, and ongoing work on embedding events. Significant progress has been made, but several challenges remain before data collection begins.

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HBD Software Update

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  1. HBD Software Update By Sky Rolnick UC Riverside

  2. Online Production Code • Will modify PHCentralTrack to hold hub n’ spoke variables. • These include hubcharge, spokecharge1, spokecharge2,etc. UC Riverside

  3. Online Monitoring Tools • Will modify HBDMon.C (written by Zvi) to allow High Voltage scans to optimize bias voltage. • Code now compiles on va machines. • Requires data to be stored after each run. How to store data? • Option 1) Using Database • Option 2) Simple Text file UC Riverside

  4. Online Monitoring • Plot Run 265929 UC Riverside

  5. Simulations Update • Generated 10K single particle (electron, phi) using EXODUS. • Generated 10K pp minbias at 200GeV & 500GeV using PHPythia. • Generated 10K AuAu at 200GeV using HIJING. • Run through PISA with full HBD in +- field configuration. UC Riverside

  6. Questions Remain • How to include scintillation light? • This can be done in HbdFinalSimulator.C or it can be done in PISA. Which one? • How is Cherenkov light simulated for low pt electrons? Does it take into account tracking curvature? UC Riverside

  7. HBD Reconstruction - issues with AuAu PisaToDST – • Warning in <TFile::Init>: file /direct/phenix+data08/skymeson/runjobs/AuAu_minbias/pisa/11/simDST.root probably not closed, trying to recover • Warning in <TFile::Init>: no keys recovered, file has been made a Zombie • Warning in <TFile::Init>: file /direct/phenix+data08/skymeson/runjobs/AuAu_minbias/pisa/11/simDST.root probably not closed, trying to recover • Warning in <TFile::Init>: no keys recovered, file has been made a Zombie • /home/phnxbld/new/source/offline/framework/fun4all/Fun4AllDstInputManager.C:114: : in Could not open file /direct/phenix+data08/skymeson/runjobs/AuAu_minbias/pisa/11/simDST.root • /home/phnxbld/new/source/offline/framework/fun4all/Fun4AllDstInputManager.C:645: could not open file: /direct/phenix+data08/skymeson/runjobs/AuAu_minbias/pisa/11/simDST.root UC Riverside

  8. Embedding Events • New code allows embedding, ie. Signal + Background. • merge(HbdCellList *hcl1, HbdCellList *hcl2) { // work in progress here. } UC Riverside

  9. Hub n’ Spoke Clustering cvs co offline/analysis/HbdHnSCluster/ UC Riverside

  10. Hub n’ Spoke Event Display cvs co offline/analysis/HbdHnSDisplay/ UC Riverside

  11. Hub n’ Spoke Mapping UC Riverside

  12. CGL Projections UC Riverside

  13. Remaining Issues • Mapping may have bugs, ie. sometimes padkey not found, does not give expected charge in hub n’ spoke. • Still need to code spoke radius = 2. • Still need to compute COG for hub n’ spoke. • Still need to test efficiency of algorithm for identifying “single” and “double” events. UC Riverside

  14. Conclusions • Progress has been made. • Still lots of work remaining before we start taking data. UC Riverside

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