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Title	FCC-ee: Energy Calibration
Authors	M. Koratzinos, A.P. Blondel DPNC, Genève, Switzerland E. Gianfelice-Wendt Fermilab, Batavia, Illinois, USA F. Zimmermannpresenter CERN, Geneva, Switzerland
Abstract	FCC-ee aims to im­prove on elec­troweak pre­ci­sion mea­sure­ments, with goals of 100 keV on the Z mass and width, and a frac­tion of an MeV on the W mass. Com­pared to LEP, this im­plies a much im­proved knowl­edge of the cen­tre-of-mass en­ergy when op­er­at­ing at the Z peak and WW thresh­old. This con­tri­bu­tion will de­scribe how it is planned to achieve this, by mak­ing sys­tem­atic use of res­o­nant de­po­lar­iza­tion. A num­ber of dif­fi­cul­ties have been iden­ti­fied, due in par­tic­u­lar to the long po­lar­iza­tion time and am­pli­fied ground mo­tion. How­ever the smaller emit­tance and en­ergy spread of FCC-ee with re­spect to LEP should help achieve a much im­proved per­for­mance.
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Conference	IPAC2015, Richmond, VA, USA
Series	International Particle Accelerator Conference (6th)
Proceedings	Link to full IPAC2015 Proccedings
Session	Tuesday Posters (Tyler)
Date	05-May-15   16:00–18:00
Main Classification	1: Circular and Linear Colliders
Sub Classification	A02 - Lepton Colliders
Keywords	polarization, wiggler, storage-ring, electron, simulation
Publisher	JACoW, Geneva, Switzerland
Editors	Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany)
ISBN	978-3-95450-168-7
Published	June 2015
Copyright	Copyright © 2015 by JACoW, Geneva, Switzerland     cc Creative Commons Attribution 3.0