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LumiDays 25

10–12 Mar 2025
CERN
Europe/Zurich timezone
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Session

What can we do better in the remainder of Run III, and looking to Run 4

5
12 Mar 2025, 14:30
774/R-013 (CERN)

774/R-013

CERN

104
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Conveners

What can we do better in the remainder of Run III, and looking to Run 4: 5A

  • Richard Hawkings (CERN)

What can we do better in the remainder of Run III, and looking to Run 4: 5B

  • Richard Hawkings (CERN)

Presentation materials

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  1. 24. Use of reference physics processes for long-term relative-stability monitoring
    David Walter (Massachusetts Inst. of Technology (US))
    12/03/2025, 14:30

    For instance:
    • in pp: Z-, but also J/psi- & Upsilon- counting
    • in PbPb: UPC dimuons (CMS)
    • in PbPb: photonuclear signatures in the ZDCs

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  2. 25. New LHCb luminometers in Run III
    Edoardo Franzoso (Universita e INFN, Ferrara (IT))
    12/03/2025, 15:05

    what has LHCB learnt from PLUME (and other luminometers) in
    Run III, and how it informs the LHCb strategy for Run 4

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  3. 27. Looking to Run 4: ATLAS Run-3 experience with LUCID prototypes for HL- LHC
    Vincent Hedberg (Lund University (SE))
    12/03/2025, 16:00
  4. 28. Looking to Run 4 in CMS
    Alexey Shevelev (University of Maryland (US))
    12/03/2025, 16:30

    For instance (under consideration; not an exhaustive list):
    • experience with BCM1F in Run 3, and how it informs the CMS
    strategy for Run 4
    • proposal for very-high µ (µ > 120) fill with a mixture of indivs &
    trains (as done in 2016) for characterizing the BCID-dependent
    response, and the relative µ-dependence, of the CMS
    luminometers (also of interest to ATLAS)
    • scouting
    •...

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  5. 29. Discussion and Closeout
    12/03/2025, 17:00
  6. 26. First experience with the ALICE FIT system as an online luminometer
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