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LHCb

LHCb. Mapping the VELO Detector By Abraham Jacob Supervisors: Tom Latham and Tim Gershon. Introduction. The Vertex Locator (VELO). Monte Carlo (MC) and Real Data. Monte Carlo algorithms can produce simulated data Can “reconstruct” the vertex in same way as real data

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LHCb

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  1. LHCb Mapping the VELO Detector By Abraham Jacob Supervisors: Tom Latham and Tim Gershon

  2. Introduction

  3. The Vertex Locator (VELO)

  4. Monte Carlo (MC) and Real Data • Monte Carlo algorithms can produce simulated data • Can “reconstruct” the vertex in same way as real data • Also MC truth data where vertex locations are known • Want to compare the simulated data to real data to make sure simulation algorithms are as good as possible Unfortunately not this Monte Carlo.

  5. Mapping ATLAS detector Images from ATLAS collaboration presented at ICHEP, Paris, July 22nd 2010.

  6. MC Truth Data x (mm) z (mm)

  7. MC data x (mm) z (mm) RealData x (mm) z (mm)

  8. MC data RealData

  9. MC Truth Data

  10. Hadronic interactions in ATLAS Images from ATLAS collaboration presented at ICHEP, Paris, July 22nd 2010.

  11. Vertices with at least 3 output tracks

  12. Radius against Z axis

  13. Error in z position in mm

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