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1.
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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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2.
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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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3.
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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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4.
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Polarization and Centre-of-mass Energy Calibration at FCC-ee
/ Blondel, Alain (Geneva U. ; CERN ; Paris U., VI-VII) ; Janot, Patrick (CERN) ; Wenninger, Jörg (CERN) ; Aßmann, Ralf (DESY) ; Aumon, Sandra (CERN) ; Azzurri, Paolo (INFN, Pisa) ; Barber, Desmond P. (DESY) ; Benedikt, Michael (CERN) ; Bogomyagkov, Anton V. (Novosibirsk, IYF) ; Gianfelice-Wendt, Eliana (Fermilab) et al.
The first stage of the FCC (Future Circular Collider) is a high-luminosity electron-positron collider (FCC-ee) with centre-of-mass energy ranging from 88 to 365 GeV, to study with high precision the Z, W, Higgs and top particles, with samples of $5 \times 10^{12}$ Z bosons, $10^8$ W pairs, $10^6$ Higgs bosons and $10^6$ top quark pairs. [...]
arXiv:1909.12245 ; FERMILAB-PUB-19-495-APC.
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2019. - 107 p.
Fermilab Library Server (fulltext available) - Fulltext - Fulltext
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5.
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Instability studies at the CERN Proton Synchrotron during transition crossing
/ Migliorati, M (CERN ; U. Rome La Sapienza (main) ; INFN, Rome) ; Aumon, S (CERN) ; Koukovini-Platia, E (CERN) ; Huschauer, A (CERN) ; Métral, E (CERN) ; Sterbini, G (CERN) ; Wang, N (Beijing, Inst. High Energy Phys.)
The CERN Proton Synchrotron (PS) routinely crosses transition energy at around 6 GeV in order to accelerate protons that are injected in the Super Proton Synchrotron (SPS) or transferred to users of fixed target experiments. Depending on the beam parameters and intensity, a fast vertical coherent instability occurs during transition crossing. [...]
2018 - 13 p.
- Published in : Phys. Rev. Accel. Beams: 21 (2018) , no. 12, pp. 120101
- Published in : Phys. Rev. Accel. Beams: 22 (2019) , no. 6, pp. 068002
Fulltext from Publisher: PDF;
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6.
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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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7.
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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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8.
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The (7,7) optics at CERN PS
/ Serluca, M (CERN) ; Aumon, S (CERN) ; Efthymiopoulos, I (CERN) ; Sperati, F (CERN) ; Sterbini, G (CERN) ; Tecker, F (CERN) ; Zisopoulos, P (CERN)
The PS lattice is composed by one hundred combinedfunction magnets, which set the bare tune of the machineto (Qh,Qv) = (6.25, 6.28). Low energy quadrupoles areused at injection to move the tune in a limited working pointarea [...]
2017 - 8 p.
- Published in : 10.23727/CERN-Proceedings-2017-002.43
Fulltext: PDF;
In : Injector MD Days 2017, CERN, Geneva, Switzerland, 23 - 24 Mar 2017, pp.43-50
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9.
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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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