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Analyzing CMS Data: Muon Dynamics, Mass Plots, and Cosmic Ray Interactions

This report presents an analysis of data from the Compact Muon Solenoid (CMS) detector, focusing on key physics plots for muons, electrons, and dielectrons. Highlighted are the relationships between azimuthal angle (phi) and pseudorapidity (eta), especially the observed gaps in the electromagnetic calorimeter (ECal) and the effects of the magnetic field on cosmic muons. We include smooth increasing histograms for dielectrons and dimuons, as well as detailed mass plots for both muons and electrons. Conclusions drawn also explore future directions for mass fit and production cross-section ratios.

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Analyzing CMS Data: Muon Dynamics, Mass Plots, and Cosmic Ray Interactions

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  1. CMS Data Analysis

  2. Data Sets

  3. Large Hadron Collider

  4. CMS Detector

  5. Physics Plots: phi vs eta • note cutoffs at η of 1.5 correspond to gaps in the Ecal

  6. Physics Plots: phi vs eta

  7. Cosmic Muons and the Detector • curved by magnetic field

  8. Cosmic Muons and the Detector • curved by magnetic field • detector breaks tracks into two opposite signed muons

  9. Physics Plots: Beta • dielectrons: smooth increasing histogram

  10. Physics Plots: Beta • dielectrons: smooth increasing histogram • dimuons: peak near zero

  11. Physics Plots: Muonsphi vs eta for beta <0.05

  12. Physics Plots: Mass PlotsElectrons

  13. Physics Plots: Mass PlotsElectrons

  14. Physics Plots: Mass PlotsMuons

  15. Physics Plots: Mass PlotsMuons

  16. Physics Plots: Mass PlotsElectronsMass Extremes Separated

  17. Physics Plots: Mass PlotsMuonsMass Extremes Separated

  18. Conclusions • Access and Read Data

  19. Conclusions • Future Fit Masses Production Cross Section Ratio of Z-->μμ to Z-->ee MORE DATA Develop experimental modern physics course activity • Report: http://cms.michianastem.org/Summer+2013

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