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Offline Muon Reconstruction: Current Status and Future Plans for B-Physics Analysis

This document provides an overview of the current status of offline muon reconstruction focused on B-physics, particularly the identification and efficiency of single muons, Z→μμ decays, and Bs→J/ψ+Ks decays. It outlines plans for improvements in central track matching, calorimeter tracking, and the implementation of a streamlined code for offline and L3 analyses. Upcoming tasks include customizing tools for efficiency, debugging real data, and preparing for upcoming physics analyses. The goal is to enhance the performance and reliability of the muon reconstruction processes.

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Offline Muon Reconstruction: Current Status and Future Plans for B-Physics Analysis

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  1. Muon offline run readiness • Current status of offline reconstruction • Single muons (5-100 GeV PT) • Z • Single b  (PT of b > 6, <3) • Bs  J/ + Ks • Plans for March 1st and after Offline Muon Reconstruction for B-physics

  2. Muon ID Calorimeter: ~1.5 Gev Toroid (BC): ~ 3 GeV • Muon = Object in muon system + matching GTrack • Tight: • GTrack (PT > 3) + A,BC track • GTrack (1.5 <PT < 3) + A segment • Loose: • GTrack (PT > 3) + A or BC segment • Extra loose: • GTrack (PT > 1.5) + hit coincidence Offline Muon Reconstruction for B-physics

  3. Single muon efficiency Offline Muon Reconstruction for B-physics

  4. Single muon efficiency Offline Muon Reconstruction for B-physics

  5. Z Offline Muon Reconstruction for B-physics

  6. Single b Offline Muon Reconstruction for B-physics

  7. Single b Offline Muon Reconstruction for B-physics

  8. Bs  J/ + Ks efficiency Offline Muon Reconstruction for B-physics

  9. Bs  J/ + Ks efficiency Offline Muon Reconstruction for B-physics

  10. Future plans: now - 3/1 • Improve central track matching • Implement tracking in calorimeter • Offline and L3 use same code • Priority: workable L3 tool • Fix bugs in reconstruction • Make it as fast as reasonably achievable and then some • Get it running smoothly on NT Offline Muon Reconstruction for B-physics

  11. Event display Offline Muon Reconstruction for B-physics

  12. Future plans - First 100.000 events • Debug code using real data • Detector open - segments (B&C) • Detector closed - local tracks (~17% PT) • With inner tracker - global tracks • Check complete system • Do some physics? • Check J/ and Z cross sections? Offline Muon Reconstruction for B-physics

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