LumiDays 25

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Sessions*

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

Luminometer non-linearities and integration uncertainties

Impact of accelerator instrumental issues on luminosity calibrations

Impact of beam dynamics on vdM calibrations

Luminosity determination in Run III, and associated uncertainties

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Contributions*

ALICE final Run-II luminosity measurements (in session "Luminosity determination in Run III, and associated uncertainties")

ATLAS non-factorization analyses (in session "Impact of beam dynamics on vdM calibrations")

BPM- and BGI-based beam-displacement measurements at IP8 (in session "Impact of accelerator instrumental issues on luminosity calibrations")

Calibration-transfer and long-term stability in ATLAS: corrections & systematic uncertainties. (in session "Luminometer non-linearities and integration uncertainties")

CMS non-factorization analyses (in session "Impact of beam dynamics on vdM calibrations")

Discussion and Closeout (in session "What can we do better in the remainder of Run III, and looking to Run 4")

Emittance evolution in physics and luminosity-calibration fills: what measurements do we have and what did we learn from them? (in session "Impact of accelerator instrumental issues on luminosity calibrations")

Follow-up questions and discussion (in session "Impact of accelerator instrumental issues on luminosity calibrations")

Generalization of parameterized beam-beam corrections to 2-D vdM scans (in session "Impact of beam dynamics on vdM calibrations")

HI-specific vdM-calibration issues (ALICE Speaker) (in session "Luminosity determination in Run III, and associated uncertainties")

Impact of magnetic non-linearities, BPM performance & x-y coupling on ATLAS length-scale calibrations (in session "Impact of accelerator instrumental issues on luminosity calibrations")

LHC bunch-population measurements in Run III & beyond: a status report (in session "Impact of accelerator instrumental issues on luminosity calibrations")

LHCb ghost-charge measurements (in session "Impact of accelerator instrumental issues on luminosity calibrations")

LHCb methods & techniques for luminosity measurements in pp collisions (in session "Luminosity determination in Run III, and associated uncertainties")

LHCb non-factorization analyses (in session "Impact of beam dynamics on vdM calibrations")

Long term stability, non-linearity corrections, integration methodologies and systematic uncertainties in CMS (in session "Luminometer non-linearities and integration uncertainties")

Looking to Run 4 in CMS (in session "What can we do better in the remainder of Run III, and looking to Run 4")

Looking to Run 4: ATLAS Run-3 experience with LUCID prototypes for HL- LHC (in session "What can we do better in the remainder of Run III, and looking to Run 4")

New LHCb luminometers in Run III (in session "What can we do better in the remainder of Run III, and looking to Run 4")

Numerical Tools for Studying Beam Dynamics Effects on Luminosity Calibration: COMBI and XSUITE (in session "Impact of accelerator instrumental issues on luminosity calibrations")

Overview of ATLAS luminosity determination (in session "Luminosity determination in Run III, and associated uncertainties")

Overview of CMS luminosity determination (in session "Luminosity determination in Run III, and associated uncertainties")

Overview of the accelerator issues that impact the absolute luminosity calibrations at the LHC (in session "Impact of beam dynamics on vdM calibrations")

Recent developments in beam-beam studies (in session "Impact of beam dynamics on vdM calibrations")

Results of the 2024 Non-factorization MD: accelerator measurements (in session "Impact of beam dynamics on vdM calibrations")

Sources & mitigation of non-factorization in the injectors & the LHC (in session "Impact of beam dynamics on vdM calibrations")

Status report on LHC beam-position measurements at the experimental IPs (in session "Impact of accelerator instrumental issues on luminosity calibrations")

Summary of beam-beam simulation studies during LS2 (in session "Impact of beam dynamics on vdM calibrations")

Tune measurements in vdM fills, before and during collisions (in session "Impact of accelerator instrumental issues on luminosity calibrations")

Use of reference physics processes for long-term relative-stability monitoring (in session "What can we do better in the remainder of Run III, and looking to Run 4")

Uses of Emittance Scans and Planning for 25-26 (in session "Luminometer non-linearities and integration uncertainties")

Welcome – workshop program, goals and scope (in session "Luminosity determination in Run III, and associated uncertainties")

Include materials from selected contributions

Events scheduled on*

10/03/2025

11/03/2025

12/03/2025

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