LumiDays 25

from Monday 10 March 2025 (14:00) to Wednesday 12 March 2025 (18:00)
CERN (774/R-013)

        : Sessions
    /     : Talks
        : Breaks
10 Mar 2025
11 Mar 2025
12 Mar 2025
AM
09:00
Impact of beam dynamics on vdM calibrations - Hannes Bartosik (CERN) (until 10:30)
09:00 Overview of the accelerator issues that impact the absolute luminosity calibrations at the LHC - Witold Kozanecki (University of Oregon (US))  
09:40 Sources & mitigation of non-factorization in the injectors & the LHC - Foteini Asvesta (CERN)  
10:10 Results of the 2024 Non-factorization MD: accelerator measurements - Elleanor Lamb  
10:30 --- Coffee/Tea Break ---
11:00
Impact of beam dynamics on vdM calibrations - Witold Kozanecki (University of Oregon (US)) (until 12:30)
11:00 LHCb non-factorization analyses - Vladislav Balagura (Centre National de la Recherche Scientifique (FR))  
11:30 CMS non-factorization analyses - Peter Major (University of Maryland (US))  
12:00 ATLAS non-factorization analyses - Tim Barklow (SLAC National Accelerator Laboratory (US))  
09:00
Impact of accelerator instrumental issues on luminosity calibrations - David Stickland (Princeton University (US)) (until 10:30)
09:00 Impact of magnetic non-linearities, BPM performance & x-y coupling on ATLAS length-scale calibrations - Richard Hawkings (CERN)  
09:35 Status report on LHC beam-position measurements at the experimental IPs - Dr Marek Gasior (CERN)  
10:00 BPM- and BGI-based beam-displacement measurements at IP8 - Vladislav Balagura (Centre National de la Recherche Scientifique (FR))  
10:30 --- Coffee/Tea Break ---
11:00
Impact of accelerator instrumental issues on luminosity calibrations - David Stickland (Princeton University (US)) (until 11:30)
11:00 Emittance evolution in physics and luminosity-calibration fills: what measurements do we have and what did we learn from them? - Sofia Kostoglou (CERN)  
11:30
Luminometer non-linearities and integration uncertainties - Martino Gagliardi (Universita e INFN Torino (IT)) (until 12:30)
11:30 Uses of Emittance Scans and Planning for 25-26 - David Stickland (Princeton University (US))  
11:50 Long term stability, non-linearity corrections, integration methodologies and systematic uncertainties in CMS - Francesco Romeo (Vanderbilt University)  
PM
14:00
Luminosity determination in Run III, and associated uncertainties - Eric Torrence (University of Oregon (US)) (until 15:30)
14:00 Welcome – workshop program, goals and scope - David Stickland (Princeton University (US))  
14:10 Overview of ATLAS luminosity determination - Brian Andrew Cole (Columbia University (US))  
14:50 Overview of CMS luminosity determination - Gabriella Pasztor (Eötvös University, Budapest)  
15:30 --- Tea/Coffee Break ---
16:00
Luminosity determination in Run III, and associated uncertainties - Gabriella Pasztor (Eötvös University, Budapest) (until 17:30)
16:00 HI-specific vdM-calibration issues (ALICE Speaker) - Martino Gagliardi (Universita e INFN Torino (IT))  
16:35 ALICE final Run-II luminosity measurements - Prof. Jesus Guillermo Contreras Nuno (Czech Technical University in Prague (CZ))  
17:00 LHCb methods & techniques for luminosity measurements in pp collisions - Daniele Passaro (SNS & INFN Pisa (IT))  
12:30 --- Lunch ---
14:00
Impact of beam dynamics on vdM calibrations -Dr Tatiana Pieloni (EPFL) (until 15:30)
14:00 Summary of beam-beam simulation studies during LS2 - Witold Kozanecki (University of Oregon (US))  
14:35 Recent developments in beam-beam studies - Joanna Wanczyk  
15:05 Generalization of parameterized beam-beam corrections to 2-D vdM scans - Ivan Kralik (Slovak Academy of Sciences (SK))  
15:30 --- Tea/Coffee Break ---
16:00
Impact of accelerator instrumental issues on luminosity calibrations - Manuel Gonzalez Berges (CERN) (until 18:20)
16:00 Tune measurements in vdM fills, before and during collisions - Tom Levens (CERN)  
16:20 LHC bunch-population measurements in Run III & beyond: a status report - Alexander Nicholas Jury (University of Liverpool (GB))  
16:50 LHCb ghost-charge measurements - Niall Thomas Mchugh (University of Glasgow (GB))  
17:10 Numerical Tools for Studying Beam Dynamics Effects on Luminosity Calibration: COMBI and XSUITE - Dr Tatiana Pieloni (EPFL)  
17:30 Follow-up questions and discussion - Witold Kozanecki (University of Oregon (US))  
12:30 --- Lunch ---
14:00
Luminometer non-linearities and integration uncertainties - Martino Gagliardi (Universita e INFN Torino (IT)) (until 14:30)
14:00 Calibration-transfer and long-term stability in ATLAS: corrections & systematic uncertainties. - Giulia Ripellino (Uppsala University (SE))  
14:30
What can we do better in the remainder of Run III, and looking to Run 4 - Richard Hawkings (CERN) (until 15:30)
14:30 Use of reference physics processes for long-term relative-stability monitoring - David Walter (Massachusetts Inst. of Technology (US))  
15:05 New LHCb luminometers in Run III - Edoardo Franzoso (Universita e INFN, Ferrara (IT))  
15:35 --- Tea/Coffee Break ---
16:00
What can we do better in the remainder of Run III, and looking to Run 4 - Richard Hawkings (CERN) (until 17:30)
16:00 Looking to Run 4: ATLAS Run-3 experience with LUCID prototypes for HL- LHC - Vincent Hedberg (Lund University (SE))  
16:30 Looking to Run 4 in CMS - Alexey Shevelev (University of Maryland (US))  
17:00 Discussion and Closeout