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Low-emittance Tuning for Circular Colliders
/ Charles, Tessa (Melbourne U.) ; Aumon, Sandra (CERN) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (CERN ; KEK, Tsukuba) ; Tydecks, Tobias (CERN) ; Zimmermann, Frank (CERN)
The 100 km FCC-ee e⁺/e⁻ circular collider requires luminosities in the order of 10³⁵ cm⁻² s⁻¹ and very low emittances of 0.27 nm·prad for the horizontal plane and 1 pm·prad in the vertical. In order to reach these requirements, extreme focusing of the beam is needed in the interaction regions, leading to a vertical beta function of 0.8 mm at the IP. [...]
JACOW, 2019 - 6 p.
- Published in : 10.18429/JACoW-eeFACT2018-TUOAB02
Fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.TUOAB02
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Low emittance tuning of FCC-ee
/ Charles, Tessa (Melbourne U. ; CERN) ; Aumon, Sandra (ADAM, Geneva) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (KEK, Tsukuba ; CERN) ; Zimmermann, Frank (CERN)
The FCC-ee project studies the design of a future 100 km e+/e circular collider for precision studies and rare decay observations in the range of 90 to 350 GeV center of mass energy with luminosities in the order of 10$^{36}$ cm$^{-2}$s$^{-1}$. In order to reach these luminosity requirements, strong focusing is needed in the interaction regions. [...]
CERN-ACC-2019-080.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPRB001
Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPRB001
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FCC-ee Dynamic Aperture Studies and Frequency Map Analysis
/ Tydecks, Tobias (CERN) ; Aumon, Sandra (CERN) ; Charles, Tessa (CERN) ; Härer, Bastian (CERN) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (CERN) ; Papaphilippou, Yannis (CERN) ; Wenninger, Jorg (CERN)
The FCC-ee Lepton Collider will provide e⁺e⁻ collisions in the beam energy range of 45.6 GeV to 182.5 GeV. FCC-ee will be a precision measurement tool for Z, W, H and t physics with expected luminosities of 2.07× 10³⁶ cm⁻² s⁻¹ at the Z-pole and 1.3 × 10³⁴ cm⁻² s⁻¹ at the tt⁻ threshold. [...]
CERN-ACC-2018-113.-
2018 - 3 p.
- Published in : 10.18429/JACoW-IPAC2018-MOPMF057
Fulltext: mopmf057_2 - PDF; mopmf057 - PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF057
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Coupling and Dispersion Correction for the Tolerance Study in FCC-ee
/ Aumon, Sandra (CERN) ; Doblhammer, Andreas (TU Vienna) ; Härer, Bastian (KIT, Karlsruhe) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (KEK, Tsukuba)
The FCC-ee study is investigating the design of a 100 km e⁺/e⁻ circular collider for precision measurements and rare decay observations in the range of 90 to 350 GeV center of mass energy with luminosities in the order of 10³⁵ cm⁻²s⁻¹. In order to reach such performances, an extreme focusing of the beam is required in the interaction regions with a low vertical beta function of 2 mm at the IP. [...]
2017 - 6 p.
- Published in : 10.18429/JACoW-eeFACT2016-TUT3BH4
Fulltext: PDF;
In : 58th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e-Colliders, Daresbury, United Kingdom, 24 - 27 Oct 2016, pp.TUT3BH4
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Tolerance Studies and Dispersion Free Steering for Extreme Low Emittance in the FCC-ee Project
/ Aumon, Sandra (CERN) ; Doblhammer, Andreas (TU Vienna) ; Härer, Bastian (KIT, Karlsruhe, IPE) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (KEK, Tsukuba)
The FCC-ee study is investigating the design of a 100 km e⁺/e⁻ circular collider for precision measurements and rare decay observations in the range of 90 to 350 GeV center of mass energy with luminosities in the order of 10³⁵ cm⁻²s⁻¹. In order to reach such performances, an extreme focusing of the beam is required in the interaction regions with a low vertical beta function of 2 mm at the IP. [...]
CERN-ACC-2016-128.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPOR001
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR001
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Several Topics on Beam Dynamics in FCC-ee
/ Oide, Katsunobu (KEK, Tsukuba) ; Aumon, Sandra (CERN) ; Charles, Tessa (CERN) ; El Khechen, Dima (CERN) ; Shatilov, Dmitry (Novosibirsk, IYF) ; Tydecks, Tobias (CERN)
The FCC-ee is a double-ring $e^+e^-$ collider to be installed
in a common tunnel of∼ 100km circumference, as a po-
tential first step before the FCC-hh hadron collider. Several
studies on the beam dynamics at FCC-ee: low emittance
tuning, dynamic aperture, beam blowup with/without beam
beam, are introduced in the paper..
JACOW, 2019 - 5 p.
- Published in : 10.18429/JACoW-eeFACT2018-MOYAA01
Fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.MOYAA01
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Challenges and Status of the Rapid Cycling Top-Up Booster for FCC-ee
/ Härer, Bastian (CERN) ; Aumon, Sandra (CERN) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (KEK, Tsukuba) ; Papaphilippou, Yannis (CERN) ; Tydecks, Tobias (CERN)
FCC-ee is a 100 km e⁺ e⁻ collider, which is being designed within the Future Circular Collider Study (FCC) for precision studies and rare decay observations in the range of 90 to 350 GeV center-of- mass energy. The beam lifetime will be limited to less than one hour, because of radiative Bhaba scattering and beamstrahlung. [...]
IPAC-2017-WEPIK031; CERN-ACC-2017-290.-
2017 - 3 p.
- Published in : 10.18429/JACoW-IPAC2017-WEPIK031
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPIK031
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Progress in the Design of Beam Optics for FCC-ee Collider Ring*
/ Oide, Katsunobu (KEK, Tsukuba) ; Benedikt, Michael (CERN) ; Blondel, Alain (Geneva U.) ; Bogomyagkov, Anton (Novosibirsk, IYF) ; Boscolo, Manuela (Frascati) ; Burkhardt, Helmut (CERN) ; Holzer, Bernhard (CERN) ; Koratzinos, Michael (Geneva U.) ; Levichev, Evgeny (Novosibirsk, IYF) ; Milanese, Attilio (CERN) et al.
The beam optics for the FCC-ee collider has been updated: (a) the layout is adjusted to a new footprint of FCC-hh, (b) the design around the interaction point is refined considering a number of machine-detecor interface issues, (c) the arc lattice is refined taking realistic magnet designs into account, (d) the β^{*} and betatron tunes are re-optimized according to recent results of the beam-beam simulations, and more. These changes make the collider design more realistic without performance degradation..
CERN-ACC-2017-291.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUOCB1
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.2287348
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