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Fix wrong index of last strip in DeUTSector::trajectory method

Hangyi Wurequested to merge
ut/MR669-followup into master

!669 (merged) does not fully address the issue of half UT modules being off by 1 strip, so this MR is created as a follow up.

Validation done at strip level: https://indico.cern.ch/event/1565010/contributions/6592135/attachments/3100410/5493396/20250708.pdf

Validation done at Alignment level. We run global alignment job with this bug fix then do monitoring to confirm the alternating pattern. This validation is presented here: https://indico.cern.ch/event/1577186/contributions/6645341/subcontributions/566815/attachments/3118132/5529568/Validating%20UT%20monitoring%20bug%20fix.pdf

This corresponds to the DetDesc fix LHCb!5206

Validated by

  • Core Software
  • RTA
  • Simulation
Edited by Gloria Corti

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