Name: mini-workshop on SuperKEKB and implications for the FCC-ee
Start: 2025-05-08T08:00:00+02:00
End: 2025-05-08T13:40:00+02:00
Location: CERN

mini-workshop on SuperKEKB and implications for the FCC-ee

Thursday 8 May 2025 - 08:00

Monday 5 May 2025
Tuesday 6 May 2025
Wednesday 7 May 2025
Thursday 8 May 2025
08:00 Motivation and overview
Motivation and overview
08:00 - 08:40
Room: 40/S2-A01 - Salle Anderson
Contributions

08:00 Motivation & objectives - Tor Raubenheimer (SLAC National Accelerator Laboratory - On Leave (US))

08:10 Overview of SuperKEKB history and issues - Yukiyoshi Ohnishi
08:40 Specific luminosity challenge
Specific luminosity challenge
08:40 - 10:05
Room: 40/S2-A01 - Salle Anderson
Contributions

08:40 Observations (few bunches, many bunches…) - Yoshihiro Funakoshi (KEK)

08:55 Coupling correction including IP coupling - Katsunobu Oide (Universite de Geneve (CH))

09:10 Beam-beam simulations with linear & chromatic coupling - Kazuhito Ohmi (KEK)

09:25 Xsuite and beam-beam with space charge - John Patrick Salvesen (University of Oxford, CERN)

09:40 General optics assessment, an external view - Rogelio Tomas Garcia (CERN)

09:55 Discussion
10:05 Emittance growth in transfer line
Emittance growth in transfer line
10:05 - 10:35
Room: 40/S2-A01 - Salle Anderson
Contributions

10:05 Observations, explanations and mitigations - Naoko Iida

10:20 Emittance preservation simulations in the linac and transfer lines - Ilya Agapov (Deutsches Elektronen-Synchrotron (DE))
10:35 Coffee break
Coffee break
10:35 - 10:50
Room: 40/S2-A01 - Salle Anderson
10:50 Sudden beam loss
Sudden beam loss
10:50 - 12:20
Room: 40/S2-A01 - Salle Anderson
Contributions

10:50 Observations - Hitomi Ikeda (KEK)

11:05 VACSEAL and cleaning work - Kyo Shibata

11:20 Simulation of dust, ions and electrons for SuperKEKB and FCC-ee - Kazuhito Ohmi (KEK)

11:35 Observations of dust events and their statistics at the LHC - Anton Lechner (CERN)

11:50 Vacuum system and vacseal (or not ?) for FCC-ee - Cedric Garion (CERN)

12:05 Discussion
12:20 Injection efficiency (including injection-related detector backgrounds)
Injection efficiency (including injection-related detector backgrounds)
12:20 - 13:20
Room: 40/S2-A01 - Salle Anderson
Contributions

12:20 Overview of BELLE II injection experience and issues - Hiroyuki NAKAYAMA

12:35 Observed injection efficiency vs current and beta *x,y - Takashi Yoshimoto (KEK)

12:50 Tracking simulation of injection beam in HER - Meng Li (IJCLab & IHEP)

13:05 Simulated injection efficiency with tune scan, beta_y*, and beam-beam - Yasuhiro Yamamoto
13:20 Discussion for the intrepid
Discussion for the intrepid
13:20 - 13:40
Room: 40/S2-A01 - Salle Anderson