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

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Presentation transcript:

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 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.

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

MC Truth Data z (mm) x (mm)

MC data Real Data z (mm) x (mm) z (mm) x (mm)

MC data Real Data

MC Truth Data

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

Vertices with at least 3 output tracks

Radius against Z axis

Error in z position in mm