LHC Lumi Days 2025

from Monday, March 10, 2025 (11:30 AM) to Wednesday, March 12, 2025 (6:00 PM)
CERN (774/R-013)

        : Sessions
    /     : Talks
        : Breaks
Mar 10, 2025
Mar 11, 2025
Mar 12, 2025
AM
9:00 AM
Impact of beam dynamics on vdM calibrations (until 10:30 AM) (774/R-013)
9:00 AM Overview of the accelerator issues that impact the absolute luminosity calibrations at the LHC - Witold Kozanecki (University of Oregon (US))   (774/R-013)
9:40 AM Sources & mitigation of non-factorization in the injectors & the LHC - Foteini Asvesta (CERN)   (774/R-013)
10:10 AM Results of the 2024 Non-factorization MD: accelerator measurements   (774/R-013)
10:30 AM --- Tea/Coffee ---
11:00 AM
Impact of beam dynamics on vdM calibrations - Witold Kozanecki (University of Oregon (US)) (until 12:30 PM) (774/R-013)
11:00 AM LHCb non-factorization analyses   (774/R-013)
11:30 AM CMS non-factorization analyses - Peter Major (University of Maryland (US))   (774/R-013)
12:00 PM ATLAS non-factorization analyses   (774/R-013)
9:00 AM
Impact of accelerator instrumental issues on luminosity calibrations - David Stickland (Princeton University (US)) (until 11:35 AM) (774/R-013)
9:00 AM Impact of magnetic non-linearities, BPM performance & x-y coupling on ATLAS length-scale calibrations - Richard Hawkings (CERN)   (774/R-013)
9:35 AM Status report on LHC beam-position measurements at the experimental IPs - Dr Marek Gasior (CERN)   (774/R-013)
10:00 AM BPM- and BGI-based beam-displacement measurements at IP8 - Vladislav Balagura (Centre National de la Recherche Scientifique (FR))   (774/R-013)
10:30 AM --- Coffee ---
11:00 AM Emittance evolution in physics and luminosity-calibration fills: what S. Kostoglou +10 measurements do we have and what did we learn from them? - Sofia Kostoglou (CERN)   (774/R-013)
11:35 AM
Luminometer non-linearities and integration uncertainties - Martino Gagliardi (Universita e INFN Torino (IT)) (until 12:35 PM) (774/R-013)
11:35 AM What have the Experiments learnt from emittance scans, and what can we do better? - David Stickland (Princeton University (US))   (774/R-013)
12:00 PM Luminometer non-linearity corrections and integration uncertainties in CMS - Francesco Romeo (Vanderbilt University)   (774/R-013)
PM
2:00 PM
Luminosity determination in Run III, and associated uncertainties - Eric Torrence (University of Oregon (US)) (until 3:30 PM) (774/R-013)
2:00 PM Welcome – workshop program, goals and scope - David Stickland (Princeton University (US))   (774/R-013)
2:10 PM Overview of ATLAS luminosity determination - Brian Andrew Cole (Columbia University (US))   (774/R-013)
2:50 PM Overview of CMS luminosity determination - Gabriella Pasztor (Eötvös University, Budapest)   (774/R-013)
3:30 PM --- Tea/Coffee ---
4:00 PM
Luminosity determination in Run III, and associated uncertainties - Gabriella Pasztor (Eötvös University, Budapest) (until 5:40 PM) (774/R-013)
4:10 PM HI-specific vdM-calibration issues (ALICE Speaker) - Martino Gagliardi (Universita e INFN Torino (IT))   (774/R-013)
4:45 PM ALICE final Run-II luminosity measurements - Prof. Jesus Guillermo Contreras Nuno (Czech Technical University in Prague (CZ))   (774/R-013)
5:05 PM LHCb methods & techniques for L measurements in pp collisions   (774/R-013)
2:00 PM
Impact of beam dynamics on vdM calibrations -Dr Tatiana Pieloni (EPFL) (until 3:30 PM) (774/R-013)
2:00 PM Summary of beam-beam simulation studies during LS2 - Witold Kozanecki (University of Oregon (US))   (774/R-013)
2:35 PM Recent developments in beam-beam studies - Joanna Wanczyk   (774/R-013)
3:05 PM Generalization of parameterized beam-beam corrections to 2-D vdM scans - Ivan Kralik (Slovak Academy of Sciences (SK))   (774/R-013)
3:30 PM --- Tea/Coffee ---
4:00 PM
Impact of accelerator instrumental issues on luminosity calibrations - Manuel Gonzalez Berges (CERN) (until 5:35 PM) (774/R-013)
4:00 PM Tune measurements in vdM fills, before and during collisions - Tom Levens (CERN)   (774/R-013)
4:20 PM LHC bunch-population measurements in Run III & beyond: a status report - Alexander Nicholas Jury (University of Liverpool (GB))   (774/R-013)
4:50 PM LHCb ghost-charge measurements   (774/R-013)
5:05 PM Follow-up questions and iscussion   (774/R-013)
2:00 PM
Luminometer non-linearities and integration uncertainties - Martino Gagliardi (Universita e INFN Torino (IT)) (until 2:35 PM) (774/R-013)
2:00 PM Calibration-transfer and long-term stability in ATLAS: corrections & systematic uncertainties. - Giulia Ripellino (Uppsala University (SE))   (774/R-013)
2:35 PM
What can we do better in the remainder of Run III, and looking to Run 4 - Richard Hawkings (CERN) (until 3:35 PM) (774/R-013)
2:35 PM Use of reference physics processes for long-term relative-stability monitoring - David Walter (CERN)   (774/R-013)
3:10 PM New LHCb luminometers in Run III   (774/R-013)
3:35 PM --- Tea/Coffee ---
4:00 PM
What can we do better in the remainder of Run III, and looking to Run 4 - Richard Hawkings (CERN) (until 5:30 PM) (774/R-013)
4:00 PM First experience with the ALICE FIT system as an online luminometer   (774/R-013)
4:20 PM Looking to Run 4: ATLAS Run-3 experience with LUCID prototypes for HL- LHC - Vincent Hedberg   (774/R-013)
4:50 PM Looking to Run 4 in CMS - Alexey Shevelev (University of Maryland (US))   (774/R-013)
5:20 PM Discussion and Closeout   (774/R-013)