FCC-FS EPOL group and FCCIS WP2.5 meeting 1

Thursday 7 Oct 2021, 16:30 → 18:45 Europe/Zurich

The FCC technical and financial feasibility study comprises a work package (EPOL) on precision determination of the centre of mass energy at FCCee. using resonant depolarisation of the beams, in conjunction with precise measurement of the energy spread and other parameters using physics events in the detectors, and other beam diagnostics in particular to control the collision parameters. Specific equipment involves polarimeters for both beams, polarisation wigglers, and depolarising RF kickers. The possible mono-chromatization of the beams in view of a measurement of the e+ e- —> H (125) process will also be studied and special requirements investigated. 

Short group meetings are foreseen at 16:30 on Thursday typically every two weeks. 

1 Welcome, Introduction

Speakers: Alain Blondel (Universite de Geneve (CH)), Jorg Wenninger (CERN)

Blondel-E-Pol-summaryand to-dos-2020-05-22.pdf

Blondel-E-Pol-summaryand to-dos-2020-05-22.pptx

EPJP-S-21-01868-submitted.pdf

EPOL-for-FCCee-FDS-with-WPs-2021-06-21-v2.docx

EPOL-for-FCCee-FDS-with-WPs-2021-06-21-v2.pdf

welcome-and- introduction.pdf

welcome-and- introduction.pptx

2 short discussion on RF locations and ECM

Speaker: Alain Blondel (Universite de Geneve (CH))

AB-RF-layout-2021-10-07.pdf

AB-RF-layout-2021-10-07.pptx

3 ee--> H (125) search with FCC-ee

Speaker: David d'Enterria (CERN)

dde_ee_Higgs_schannel_FCCee_SnowmassEF01_sept21.pdf

4 Spin and energy simulations using BMAD

Speaker: David Sagan

Bmad-Spin .pdf

5 Implementation of polarimeters and wigglers in the FCCee lattice

Speaker: Michael Hofer (CERN)

MH_FCCee_PolLocation.pdf

6 Status of participating groups (around the table)

Speakers: Angeles Faus-Golfe (IJClab IN2P3 CNRS-Université Paris-Saclay (FR)), Eliana Gianfelice-Wendt, Frank Zimmermann (CERN), Ivan Koop (BINP), Tatiana Pieloni (EPF Lausanne)

EPFL_UPDATE.pdf

EPFL_UPDATE.pptx

7 Actions, agenda for next meetings